<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0034-7434</journal-id>
<journal-title><![CDATA[Revista Colombiana de Obstetricia y Ginecología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Colomb Obstet Ginecol]]></abbrev-journal-title>
<issn>0034-7434</issn>
<publisher>
<publisher-name><![CDATA[Federación Colombiana de Obstetricia y GinecologíaRevista Colombiana de Obstetricia y Ginecología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-74342013000300006</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Guía de Práctica Clínica para el abordaje de las complicaciones hipertensivas asociadas al embarazo]]></article-title>
<article-title xml:lang="en"><![CDATA[Clinical practice guidelines for approaching pregnancy-associated hypertensive complications]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Buitrago-Gutiérrez]]></surname>
<given-names><![CDATA[Giancarlo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro-Sanguino]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cifuentes-Borrero]]></surname>
<given-names><![CDATA[Rodrigo]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ospino-Guzman]]></surname>
<given-names><![CDATA[Martha Patricia]]></given-names>
</name>
<xref ref-type="aff" rid="A04"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arevalo-Rodriguez]]></surname>
<given-names><![CDATA[Ingrid]]></given-names>
</name>
<xref ref-type="aff" rid="A05"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gomez-Sánchez]]></surname>
<given-names><![CDATA[Pio Iván]]></given-names>
</name>
<xref ref-type="aff" rid="A06"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Unviversidad Nacional de Colombia Medicina y Cirugía Epidemiología Clínica]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Unviversidad Nacional de Colombia Departamento de Obstetricia y Ginecología Medicina Crítica y Cuidado Intensivo]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Universidad del Valle Obstetricia y Ginecología Biología de la Reproducción]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A04">
<institution><![CDATA[,Universidad Nacional de Colombia Medicina y Cirugía Grupo de Investigación de Salud Sexual y Reproductiva]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A05">
<institution><![CDATA[,Universidad Nacional de Colombia Epidemiología Clínica Medicina Preventiva y Salud Pública]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="A06">
<institution><![CDATA[,Universidad Nacional de Colombia Facultad de Medicina Ginecoobstetricia y Epidemiología]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2013</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2013</year>
</pub-date>
<volume>64</volume>
<numero>3</numero>
<fpage>289</fpage>
<lpage>326</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0034-74342013000300006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0034-74342013000300006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0034-74342013000300006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Objetivo: realizar recomendaciones para la atención de las complicaciones hipertensivas en el embarazo como parte integral de la &ldquo;Guía de Práctica Clínica (GPC) para la prevención, detección temprana y tratamiento de las complicaciones del embarazo en Colombia&rdquo;. Materiales y métodos: el grupo desarrollador de la Guía (GDG) elaboró esta GPC durante 2011-2012 acorde con la Guía Metodológica para la elaboración de Guías de Atención Integral en el Sistema General de Seguridad Social en Salud colombiano, basándose en la evidencia científica disponible y sumando la participación activa de grupos de pacientes, sociedades científicas y grupos de interés. En particular, la evidencia de esta sección fue adaptada de la GPC &ldquo;Hypertension in pregnancy: the management of hypertensive disorders during pregnancy&rdquo; (National Institute of Care and Health Excellence - NICE - 2010) y actualizada por medio de procedimientos sistemáticos, tanto para la búsqueda y valoración de la evidencia como para la generación de recomendaciones. El nivel de evidencia y la fuerza de las recomendaciones fueron expresados por medio del sistema del Scottish Intercollegiate Guidelines Network (SIGN). Resultados: se presentan las recomendaciones para la atención de las complicaciones hipertensivas en el embarazo. Estas incluyen cambios en la conducta del personal de salud y las instituciones para aumentar la probabilidad de obtener un resultado materno-fetal exitoso en las gestaciones con estas condiciones. Conclusiones: se presenta una versión resumida de las recomendaciones y evidencia para la atención de las complicaciones hipertensivas en el embarazo, la cual se espera sea adoptada por los profesionales de salud encargados de la atención del embarazo en el país para disminuir la morbilidad y mortalidad asociada a la gestación.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Objective: To provide care recommendations for hypertensive complications during pregnancy as part of the Clinical Practice Guidelines (CPG) for the prevention, early detection and treatment of pregnancy-associated complications in Colombia. Materials and methods: The developer group worked on these CPG during 2011-2012 following the Methodological Guidelines for the development of Comprehensive Care Guidelines under the Colombian General Social Security System. The work was based on the scientific evidence available, and was conducted with the active participation of patient groups, scientific societies and stakeholders. In particular, the evidence for this section was adapted from the CPG on &ldquo;Hypertension in pregnancy: the management of hypertensive disorders during pregnancy&rdquo; (National Institute of Care and Health Excellence - NICE - 2010) and updated using systematic procedures both for the search and assessment of the evidence as well as for developing the recommendations. The level of evidence and the power of the recommendations were expressed using the Scottish Intercollegiate Guidelines Network system (SIGN). Results: Recommendations for care of hypertensive complications of pregnancy are presented. They include changes in the behavior of healthcare staff and institutions in order to enhance the probability of achieving a successful outcome for the mother and the newborn in pregnancies affected by these conditions. Conclusions: We present a summarized version of the recommendations and evidence for this section, with the expectation that they are adopted by healthcare practitioners in charge of pregnancy care in Colombia in order to reduce pregnancyrelated morbidity and mortality.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[hipertensión]]></kwd>
<kwd lng="es"><![CDATA[hipertensión inducida por el embarazo]]></kwd>
<kwd lng="es"><![CDATA[guías de práctica clínica]]></kwd>
<kwd lng="es"><![CDATA[práctica clínica basada en la evidencia]]></kwd>
<kwd lng="es"><![CDATA[Colombia]]></kwd>
<kwd lng="en"><![CDATA[Hypertension]]></kwd>
<kwd lng="en"><![CDATA[pregnancy induced]]></kwd>
<kwd lng="en"><![CDATA[clinical practice guidelines]]></kwd>
<kwd lng="en"><![CDATA[evidence-based practice]]></kwd>
<kwd lng="en"><![CDATA[prenatal care]]></kwd>
<kwd lng="en"><![CDATA[Colombia]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p><font face="verdana" size="2"> <font size="4">    <center><b>Gu&iacute;a de Pr&aacute;ctica Cl&iacute;nica para el abordaje de las complicaciones hipertensivas asociadas al embarazo<a href="#nota1" name="1"><sup>1</sup></a></b></center></font>    <p></p>     <p>    <center>   Giancarlo Buitrago-Guti&eacute;rrez, MD, MSc.<sup>1</sup>, Alejandro Castro-Sanguino, MD<sup>2</sup>, Rodrigo Cifuentes-Borrero, MD, MSc, PhD<sup>3</sup>, Martha Patricia Ospino-Guzman, MD, MSc.<sup>4</sup>, Ingrid Arevalo-Rodriguez, MSc, PhD(c)<sup>5</sup>, Pio Ivan Gomez-Sanchez, MD, MSc, Facog<sup>6</sup> Representantes del Grupo Desarrollador de la Gu&iacute;a - Universidad Nacional de Colombia - Alianza CINETS </center></p>     <p>    <center>    <p>Recibido: agosto 20/13 - Aceptado: septiembre 18/13 </p></center></p>     <p><sup>1</sup> M&eacute;dico cirujano. Mag&iacute;ster en Epidemiolog&iacute;a Cl&iacute;nica, Universidad Nacional de Colombia. Bogot&aacute;, Colombia. </p>     <p><sup>2</sup> M&eacute;dico cirujano. Especialista en Obstetricia y Ginecolog&iacute;a. Especialista en Medicina Cr&iacute;tica y Cuidado Intensivo. Profesor Asociado, Departamento de Obstetricia y Ginecolog&iacute;a, Universidad Nacional de Colombia. Bogot&aacute;, Colombia. <a href="mailto:acastros@unal.edu.co">acastros@unal.edu.co</a></p>     ]]></body>
<body><![CDATA[<p><sup>3</sup> M&eacute;dico cirujano. Especialista en Obstetricia y Ginecolog&iacute;a. Doctor en Biolog&iacute;a de la Reproducci&oacute;n. Profesor Em&eacute;rito, Universidad del Valle. Cali, Colombia. </p>     <p><sup>4</sup> M&eacute;dica cirujana. Especialista en Epidemiolog&iacute;a. Estudiante de Maestr&iacute;a en Salud Sexual y Reproductiva. Integrante del grupo de investigaci&oacute;n de Salud Sexual y Reproductiva de la Universidad Nacional de Colombia. Bogot&aacute;, Colombia. </p>     <p><sup>5</sup> Epidemi&oacute;loga Cl&iacute;nica, Universidad Nacional de Colombia. PhD (c) en Pediatr&iacute;a, Obstetricia y Ginecolog&iacute;a, Medicina Preventiva y Salud P&uacute;blica, Universidad Aut&oacute;noma de Barcelona. Coordinadora General de Epidemiolog&iacute;a Cl&iacute;nica de la Gu&iacute;a. Instructor asociado Divisi&oacute;n de Investigaciones, Fundaci&oacute;n Universitaria de Ciencias de la Salud, Hospital de San Jos&eacute;-Hospital Infantil de San Jos&eacute;. Bogot&aacute;, Colombia. </p>     <p><sup>6</sup> Especialista en Obstetricia y Ginecolog&iacute;a, y en Epidemiolog&iacute;a. Mag&iacute;ster en Salud Sexual y Reproductiva. Profesor Titular y director del Grupo de Investigaci&oacute;n en Salud Sexual y Reproductiva de la Facultad de Medicina, Universidad Nacional de Colombia. L&iacute;der general de la GPC. Bogot&aacute;, Colombia. </p>     <p><b>RESUMEN </b></p>     <p><b>Objetivo</b>: realizar recomendaciones para la atenci&oacute;n de las complicaciones hipertensivas en el embarazo como parte integral de la &ldquo;Gu&iacute;a de Pr&aacute;ctica Cl&iacute;nica (GPC) para la prevenci&oacute;n, detecci&oacute;n temprana y tratamiento de las complicaciones del embarazo en Colombia&rdquo;. </p>     <p><b>Materiales y m&eacute;todos</b>: el grupo desarrollador de la Gu&iacute;a (GDG) elabor&oacute; esta GPC durante 2011-2012 acorde con la Gu&iacute;a Metodol&oacute;gica para la elaboraci&oacute;n de Gu&iacute;as de Atenci&oacute;n Integral en el Sistema General de Seguridad Social en Salud colombiano, bas&aacute;ndose en la evidencia cient&iacute;fica disponible y sumando la participaci&oacute;n activa de grupos de pacientes, sociedades cient&iacute;ficas y grupos de inter&eacute;s. En particular, la evidencia de esta secci&oacute;n fue adaptada de la GPC &ldquo;Hypertension in pregnancy: the management of hypertensive disorders during pregnancy&rdquo; (National Institute of Care and Health Excellence - NICE - 2010) y actualizada por medio de procedimientos sistem&aacute;ticos, tanto para la b&uacute;squeda y valoraci&oacute;n de la evidencia como para la generaci&oacute;n de recomendaciones. El nivel de evidencia y la fuerza de las recomendaciones fueron expresados por medio del sistema del Scottish Intercollegiate Guidelines Network (SIGN). </p>     <p> <b>Resultados</b>: se presentan las recomendaciones para la atenci&oacute;n de las complicaciones hipertensivas en el embarazo. Estas incluyen cambios en la conducta del personal de salud y las instituciones para aumentar la probabilidad de obtener un resultado materno-fetal exitoso en las gestaciones con estas condiciones. </p>     <p><b>Conclusiones:</b> se presenta una versi&oacute;n resumida de las recomendaciones y evidencia para la atenci&oacute;n de las complicaciones hipertensivas en el embarazo, la cual se espera sea adoptada por los profesionales de salud encargados de la atenci&oacute;n del embarazo en el pa&iacute;s para disminuir la morbilidad y mortalidad asociada a la gestaci&oacute;n. </p>     <p><b>Palabras clave:</b> hipertensi&oacute;n, hipertensi&oacute;n inducida por el embarazo, gu&iacute;as de pr&aacute;ctica cl&iacute;nica, pr&aacute;ctica cl&iacute;nica basada en la evidencia, Colombia. </p> <font size="4">    ]]></body>
<body><![CDATA[<center><b>Clinical practice guidelines for approaching pregnancy-associated hypertensive complications </b></center></font>    <p></p>     <p><b>ABSTRACT </b></p>     <p><b>Objective</b>: To provide care recommendations for hypertensive complications during pregnancy as part of the Clinical Practice Guidelines (CPG) for the prevention, early detection and treatment of pregnancy-associated complications in Colombia. </p>     <p><b>Materials and methods</b>: The developer group worked on these CPG during 2011-2012 following the Methodological Guidelines for the development of Comprehensive Care Guidelines under the Colombian General Social Security System. The work was based on the scientific evidence available, and was conducted with the active participation of patient groups, scientific societies and stakeholders. In particular, the evidence for this section was adapted from the CPG on &ldquo;Hypertension in pregnancy: the management of hypertensive disorders during pregnancy&rdquo; (National Institute of Care and Health Excellence - NICE - 2010) and updated using systematic procedures both for the search and assessment of the evidence as well as for developing the recommendations. The level of evidence and the power of the recommendations were expressed using the Scottish Intercollegiate Guidelines Network system (SIGN). </p>     <p><b>Results</b>: Recommendations for care of hypertensive complications of pregnancy are presented. They include changes in the behavior of healthcare staff and institutions in order to enhance the probability of achieving a successful outcome for the mother and the newborn in pregnancies affected by these conditions. </p>     <p><b>Conclusions</b>: We present a summarized version of the recommendations and evidence for this section, with the expectation that they are adopted by healthcare practitioners in charge of pregnancy care in Colombia in order to reduce pregnancyrelated morbidity and mortality. </p>     <p><b>Key words</b>: Hypertension, pregnancy induced, clinical practice guidelines, evidence-based practice, prenatal care, Colombia. </p>     <p><b>INTRODUCCI&Oacute;N </b></p>      <p>En Colombia se estima que el 35% de las muertes maternas est&aacute;n asociadas con trastornos hipertensivos del embarazo, siendo estas complicaciones un problema prioritario de salud p&uacute;blica. La preeclampsia &ndash;tambi&eacute;n conocida con otros nombres como toxemia o gestosis, entre otros&ndash; es una de las enfermedades de mayor inter&eacute;s entre quienes dedican su tiempo a atender mujeres gestantes. Su alta complejidad y la gran cantidad de interrogantes que a&uacute;n rondan su fisiopatolog&iacute;a y etiopatogenia la han convertido en uno de los t&oacute;picos favoritos de la obstetricia. El compromiso materno secundario a esta entidad es muy variable, pero en general su detecci&oacute;n temprana y la terminaci&oacute;n oportuna de la gestaci&oacute;n disminuyen la morbimortalidad materna. Por ser una enfermedad del endotelio, sus manifestaciones pueden presentarse en cualquier &oacute;rgano o sistema. En efecto, en ausencia de intervenciones, la preeclampsia puede progresar a una disfunci&oacute;n org&aacute;nica m&uacute;ltiple en la que sobresale el compromiso renal, hep&aacute;tico y cerebral. Algunas de sus complicaciones m&aacute;s frecuentes se han descrito espec&iacute;ficamente; tal es el caso de las convulsiones conocidas como eclampsia, o del llamado s&iacute;ndrome hellp (caracterizado por compromiso hemol&iacute;tico, hep&aacute;tico y trombocitop&eacute;nico), situaciones ambas que representan un severo compromiso org&aacute;nico y que aumentan de manera dram&aacute;tica la morbimortalidad del binomio madre-hijo. </p>      ]]></body>
<body><![CDATA[<p>La hipertensi&oacute;n en el embarazo est&aacute; definida como la presencia de presi&oacute;n diast&oacute;lica de 90 mm/ Hg o mayor, medida en 2 ocasiones con una diferencia de 4 horas, o una presi&oacute;n diast&oacute;lica mayor a 110 mm/Hg y una sist&oacute;lica mayor a 140 mm/Hg en las mismas dos tomas (1). Los trastornos hipertensivos del embarazo ocurren en mujeres con hipertensi&oacute;n cr&oacute;nica preexistente primaria o secundaria, o en mujeres que desarrollan hipertensi&oacute;n durante la segunda mitad del embarazo (2). </p>     <p>Para el prop&oacute;sito de esta gu&iacute;a de atenci&oacute;n integral, el GDG adopt&oacute; las siguientes definiciones (2): </p>     <p>&bull; Hipertensi&oacute;n cr&oacute;nica es aquella que se presenta antes de la semana 20 de gestaci&oacute;n o en la mujer embarazada que se conoc&iacute;a hipertensa previo al embarazo. La etiolog&iacute;a de esta puede ser primaria o secundaria. </p>     <p>&bull; Eclampsia es aquel episodio convulsivo en la mujer con preeclampsia. Es cualquier convulsi&oacute;n durante la gestaci&oacute;n que no tenga otra explicaci&oacute;n satisfactoria, como el antecedente de epilepsia o un evento agudo como hipoglicemia, trauma, etc. </p>     <p>&bull; S&iacute;ndrome hellp es una entidad cl&iacute;nica caracterizada por la presencia simult&aacute;nea de hem&oacute;lisis, enzimas hep&aacute;ticas elevadas y conteo plaquetario bajo. </p>     <p>&bull; Hipertensi&oacute;n gestacional es aquella hipertensi&oacute;n nueva que se diagnostica despu&eacute;s de la semana 20 de gestaci&oacute;n sin proteinuria significativa asociada. </p>          <p>&bull; Preeclampsia es aquella hipertensi&oacute;n nueva que se diagnostica despu&eacute;s de la semana 20 de gestaci&oacute;n con proteinuria significativa asociada. </p>       <p>&bull; Preeclampsia severa es la preeclampsia con hipertensi&oacute;n severa o con s&iacute;ntomas que indican compromiso de &oacute;rgano blanco. </p>       <p>&bull; Hipertensi&oacute;n severa es aquella con cifras de pre&#65453;si&oacute;n arterial mayores o iguales a 160/110 mm/Hg. </p>      <p>Aunque en la literatura mundial existen m&uacute;ltiples definiciones sobre este grupo de trastornos, no hay evidencia que muestre ventajas de usar alguna en particular. El grupo desarrollador de la gu&iacute;a (GDG), a trav&eacute;s de una b&uacute;squeda sistem&aacute;tica de la literatura, encontr&oacute; que las definiciones enunciadas anteriormente son avaladas por un importante n&uacute;mero de grupos cient&iacute;ficos a nivel mundial, as&iacute; como por la Sociedad Internacional para el Estudio de Hipertensi&oacute;n en el Embarazo (ISSHP) (3). Es importante aclarar a los usuarios de esta gu&iacute;a, que a pesar de utilizar la proteinuria significativa como un criterio necesario para el diagn&oacute;stico de preeclampsia, se sabe que esta enfermedad es un s&iacute;ndrome multisist&eacute;mico que puede variar ampliamente en sus manifestaciones cl&iacute;nicas y bioqu&iacute;micas, y es frecuente encontrar la enfermedad a&uacute;n en ausencia de proteinuria significativa (2). </p>     ]]></body>
<body><![CDATA[<p>Se denomina gestante con preeclampsia severa a toda mujer embarazada con diagn&oacute;stico de preeclampsia (hipertensi&oacute;n y proteinuria significativa), que presente cualquiera de las siguientes caracter&iacute;sticas cl&iacute;nicas: </p>     <p>&bull; Hipertensi&oacute;n severa (tensi&oacute;n arterial mayor o igual a 160/110 mm/Hg). O cualquiera de las siguientes: </p>     <p>&bull; Dolor de cabeza severo.</p>     <p>&bull;Problemas con visi&oacute;n, como visi&oacute;n borrosa o fosfenos. </p>     <p>&bull; Dolor intenso subcostal o v&oacute;mito.</p>     <p>&bull; Papiledema. </p>     <p>&bull; Clonus (&ge; 3+).</p>     <p>&bull; Hipersensibilidad a la palpaci&oacute;n hep&aacute;tica.</p>     <p>&bull; S&iacute;ndrome hellp.</p>     <p>&bull; Trombocitopenia (conteo de plaquetas menor de 150.000/mm<sup>3</sup>). </p>     ]]></body>
<body><![CDATA[<p>&bull; Elevaci&oacute;n de LDH.</p>     <p>&bull; Enzimas hep&aacute;ticas anormales (ALT o AST).</p>     <p>Esta condici&oacute;n cl&iacute;nica conlleva una gran morbimortalidad materna y perinatal. El manejo cl&iacute;nico adecuado es vital para disminuir la mortalidad de las mujeres afectadas por esta patolog&iacute;a y la de sus hijos. Su manejo est&aacute; relacionado con el tratamiento anticonvulsivante y antihipertensivo, el momento y las condiciones del parto y el manejo de algunas condiciones cl&iacute;nicas especiales, como la eclampsia y el s&iacute;ndrome HELLP. </p>     <p>Por su alta complejidad, y m&aacute;s a&uacute;n por el riesgo de complicaciones mayores, las pacientes con preeclampsia severa deben ser hospitalizadas y tratadas en unidades especiales denominadas cuidados intermedios, alto riesgo obst&eacute;trico o alta dependencia obst&eacute;trica. Resulta fundamental que el monitoreo sea mucho m&aacute;s estrecho que el que se ofrece usualmente en una hospitalizaci&oacute;n en piso. </p>     <p>La disponibilidad de una Gu&iacute;a de Pr&aacute;ctica Cl&iacute;nica (GPC) para la prevenci&oacute;n, detecci&oacute;n temprana y tratamiento de estas alteraciones del embarazo, parto y el puerperio implica estandarizar para Colombia el cuidado de la mujer gestante, enfatizando la necesidad de la prevenci&oacute;n, la detecci&oacute;n temprana y el tratamiento oportuno de las alteraciones que afectan la gestaci&oacute;n en todos los niveles de atenci&oacute;n, buscando reducir la morbimortalidad materna asociada y promoviendo la optimizaci&oacute;n de la salud materna y la calidad de la atenci&oacute;n m&eacute;dica en todos los niveles de atenci&oacute;n obst&eacute;trica. </p>     <p>El grupo desarrollador de la Gu&iacute;a (GDG) elabor&oacute; esta GPC durante 2011-2012 acorde con la Gu&iacute;a Metodol&oacute;gica para la elaboraci&oacute;n de Gu&iacute;as de Atenci&oacute;n Integral en el Sistema General de Seguridad Social en Salud colombiano, bas&aacute;ndose en la evidencia cient&iacute;fica disponible y sumando la participaci&oacute;n activa de grupos de pacientes, sociedades cient&iacute;ficas y grupos de inter&eacute;s. En particular, la evidencia de esta secci&oacute;n fue adaptada de la GPC &ldquo;Hypertension in pregnancy: the management of hypertensive disorders during pregnancy&rdquo; (NICE 2010) (4), y actualizada por medio de procedimientos sistem&aacute;ticos, tanto para la b&uacute;squeda y valoraci&oacute;n de la evidencia como para la generaci&oacute;n de recomendaciones. El nivel de evidencia y la fuerza de las recomendaciones fueron expresadas por medio del sistema del Scottish Intercollegiate Guidelines Network (SIGN). La versi&oacute;n completa de esta GPC (incluida la b&uacute;squeda sistem&aacute;tica de informaci&oacute;n cient&iacute;fica y la presentaci&oacute;n detallada de la evidencia cient&iacute;fica), as&iacute; como la versi&oacute;n para pacientes y sus anexos, est&aacute;n disponibles para la consulta de los interesados por diferentes medios (f&iacute;sicos y electr&oacute;nicos) (5, 6). El presente art&iacute;culo recopila la informaci&oacute;n m&aacute;s importante de esta secci&oacute;n, muestra la evidencia relacionada para cada tema y presenta las recomendaciones elaboradas por el GDG durante el proceso de desarrollo de esta GPC. </p>     <p><b>1. &iquest;Cu&aacute;les son los factores de riesgo que se deben tener en cuenta para la aparici&oacute;n de complicaciones hipertensivas durante el embarazo? </b></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c1.jpg"></center></p>     <p>    ]]></body>
<body><![CDATA[<center><img src="/img/revistas/rcog/v64n3/v64n3a06c1A.jpg"></center></p>     <p>La gu&iacute;a de pr&aacute;ctica cl&iacute;nica de NICE adaptada por el GDG pra esta secci&oacute;n, hall&oacute; similares factores de riesgo y evidencia a la encontrada en esta evaluaci&oacute;n. Las revisiones sistem&aacute;ticas encontradas reportan que los estudios incluidos presentan alto riesgo de sesgo y algunos no permiten establecer relaciones causales entre los factores evaluados y la presentaci&oacute;n de preeclampsia. Nuevos factores como infecciones en el embarazo no cuentan con evidencia de calidad debido a la pobre calidad metodol&oacute;gica mencionada. </p>     <p><b>2. &iquest;Qu&eacute; intervenciones est&aacute;n recomendadas para la reducci&oacute;n de la incidencia de preeclampsia? </b></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c2.jpg"></center></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c2A.jpg"></center></p>     <p>La GPC del NICE adaptada para esta secci&oacute;n encontr&oacute; evidencia suficiente para recomendar el uso de aspirina en mujeres con riesgo de preeclampsia. La dosis sugerida es de 75 mg/d&iacute;a, siendo esto acorde con los resultados del estudio de evaluaci&oacute;n econ&oacute;mica incluidos en dicha GPC (2). La nueva  evidencia encontrada por el GDG refuerza esta recomendaci&oacute;n. Por tanto, el GDG decidi&oacute; no modificar la recomendaci&oacute;n proveniente en esta GPC, y aclar&oacute; que en Colombia la presentaci&oacute;n de 75 mg de ASA no existe, estando la presentaci&oacute;n de 100 mg incluida en el plan de beneficios. </p>     <p>Por otra parte, la GPC de NICE adaptada para esta secci&oacute;n no encontr&oacute; evidencia referente a donadores de &oacute;xido n&iacute;trico, progesterona, diur&eacute;ticos y heparinas de bajo peso molecular para su uso en prevenci&oacute;n de preeclampsia (2). La nueva evidencia encontrada por el GDG refuerza esta recomendaci&oacute;n. Con relaci&oacute;n a suplementos de la dieta, la GPC 1-adaptada no recomend&oacute; el uso de calcio debido a que su efectividad fue descrita en poblaciones con baja ingesta de calcio en la dieta de forma end&eacute;mica, situaci&oacute;n que no se presenta en el pa&iacute;s en que se desarroll&oacute; dicha GPC. La nueva evidencia incluida es contundente acerca de la efectividad del calcio en pa&iacute;ses desarrollados y en aquellos en v&iacute;a de desa1++ rrollo como el nuestro, y sobre toda en poblaci&oacute;n con riesgo para preeclampsia. Teniendo en cuenta lo anterior, el GDG y el consenso de expertos consider&oacute; indispensable incluir como una recomendaci&oacute;n importante para Colombia la suplementaci&oacute;n con calcio. Esta suplementaci&oacute;n debe ser de 1200 mg de carbonato de calcio desde la semana 14 y hasta finalizar el embarazo. </p>     <p>Sobre otros suplementos en la dieta, la GPC de NICE adaptada para esta secci&oacute;n no recomienda el consumo de magnesio, &aacute;cido f&oacute;lico, antioxidantes (vitaminas C y E), aceites marinos ni ajo. El GDG, como producto de la nueva b&uacute;squeda de literatura, refuerza estas recomendaciones y agrega a esta lista la vitamina D y la coenzima Q10. </p>     ]]></body>
<body><![CDATA[<p><b>3. &iquest;Cu&aacute;les son las recomendaciones para la adecuada medici&oacute;n de la proteinuria en el diagn&oacute;stico de preeclampsia? </b></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c3.jpg"></center></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c3A.jpg"></center></p>     <p>De acuerdo con la nueva evidencia y aquella identificada en la GPC de NICE adaptada para esta secci&oacute;n, el GDG concluy&oacute; que las tiras reactivas de lectura automatizada tienen una baja exactitud diagn&oacute;stica, principalmente debido a una baja sensibilidad (2). Por tal raz&oacute;n el GDG no recomienda su uso. Por el contrario, el uso de un dispositivo de lectura autom&aacute;tica mejora la sensibilidad de esta prueba, obteni&eacute;ndose valores de hasta 82 y 81% en la sensibilidad y especificidad respectivamente, para la detecci&oacute;n de proteinuria significativa. </p>     <p>Por otra parte, la relaci&oacute;n proteinuria-creatinuria con un punto de corte de 30 mg/mmol mostr&oacute; un rendimiento diagn&oacute;stico similar al de la lectura automatizada de tiras reactivas, pero muchos de estos estudios no mostraron evidencia de que la muestra fuese completa. Un estudio que cont&oacute; con muestras completas encontr&oacute; una alta exactitud con la predicci&oacute;n de proteinuria en muestras recolectadas en 24 horas, con un punto de corte de 30 mg/mmol. </p>     <p>En atenci&oacute;n a lo anterior, el GDG y el consenso de expertos consider&oacute; que la evaluaci&oacute;n de proteinuria significativa con lectura automatizada de tiras reactivas es una buena prueba de tamizaje en pacientes con riesgo de sufrir preeclampsia y que esta debe ser comprobada con la evaluaci&oacute;n de proteinuria en orina recolectada en 24 horas o con la relaci&oacute;n de proteinuria-creatinuria en muestra aislada. Si a las pacientes se les diagnostica hipertensi&oacute;n, la evaluaci&oacute;n de la proteinuria significativa es obligatoria de forma inmediata y el esquema anterior puede ser utilizado. </p>     <p><b>4. &iquest;Est&aacute;n recomendadas las pruebas serol&oacute;gicas de tirosin kinasa-1 fms-like soluble (sfit-1), factor de crecimiento placentario (PiGf), factor endotelial de crecimiento vascular (veGf), endoglina soluble (eGs) y serpina para la predicci&oacute;n de preeclampsia? </b></p>     <p>    ]]></body>
<body><![CDATA[<center><img src="/img/revistas/rcog/v64n3/v64n3a06c4.jpg"></center></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c4A.jpg"></center></p>     <p>De acuerdo con la evidencia encontrada, el GDG y el grupo de expertos concluy&oacute; que existe evidencia de calidad intermedia que reporta que diferentes pruebas serol&oacute;gicas centradas en niveles de factores asociados con angiog&eacute;nesis resultan anormales en mujeres que despu&eacute;s desarrollar&aacute;n manifestaciones cl&iacute;nicas de la enfermedad. Sin embargo, esta evidencia no es suficiente para realizar una recomendaci&oacute;n a nivel nacional para su uso rutinario. La utilizaci&oacute;n de estas pruebas se deja a criterio de especialistas en el manejo de trastornos hipertensivos del embarazo y podr&iacute;an resultar &uacute;tiles solo en situaciones cl&iacute;nicas individuales. </p>     <p><b>5. &iquest;Est&aacute; recomendado el uso del Doppler </b><b>en la predicci&oacute;n de preeclampsia en primer </b><b>y segundo trimestre de la gestaci&oacute;n? </b></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c5.jpg"></center></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c5A.jpg"></center></p>     <p>A pesar de que la gu&iacute;a NICE adaptada para esta secci&oacute;n considera que el uso del Doppler de arteria umbilical tiene beneficios en mujeres con embarazos de alto riesgo (2), el GDG en conjunto con los expertos consider&oacute; que la utilidad de esta prueba diagn&oacute;stica para predicci&oacute;n de preeclampsia en mujeres con alto o bajo riesgo no resulta muy clara, y dadas las condiciones de nuestro pa&iacute;s no es posible recomendarla como prueba de uso rutinario. </p>     ]]></body>
<body><![CDATA[<p>En relaci&oacute;n con el uso del Doppler de arteria uterina, la GPC de NICE adaptada para esta secci&oacute;n muestra que el valor predictivo de preeclampsia en mujeres con alto riesgo no es claro y que los estudios existentes son de baja calidad (2), recomendaci&oacute;n acogida plenamente por el GDG. Por otro lado, la nueva evidencia encontrada es m&aacute;s contundente al mostrar que su uso en mujeres de bajo riesgo tampoco puede ser recomendado. Es importante aclarar que a pesar de lo descrito sobre la evidencia el uso de estas pruebas diagn&oacute;sticas puede ser &uacute;til en escenarios cl&iacute;nicos particulares y, por tanto, la decisi&oacute;n de usarlas debe ser tomada por especialistas en esta patolog&iacute;a. Es importante recordar que la predicci&oacute;n de preeclampsia con el uso del Doppler es un tema en pleno desarrollo y, por tanto, existe la posibilidad de que la prueba demuestre su utilidad en estudios posteriores. </p>     <p><b>6. &iquest;Con qu&eacute; pruebas diagn&oacute;sticas debe realizarse el seguimiento de las pacientes con diagn&oacute;stico de preeclampsia?</b></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c6.jpg"></center></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c6A.jpg"></center></p>     <p>En la b&uacute;squeda de la literatura realizada por el GDG solo se encontr&oacute; una revisi&oacute;n sistem&aacute;tica que evalu&oacute; la asociaci&oacute;n entre el nivel de proteinuria y desenlaces maternos o perinatales. Dicha revisi&oacute;n encontr&oacute; una d&eacute;bil asociaci&oacute;n de proteinuria mayor a 5 g en 24 horas con la admisi&oacute;n a unidad de cuidado intensivo neonatal y con el bajo peso al nacer. Los LR encontrados fueron muy bajos. En general, el GDG y el grupo de expertos consideraron que nuevas mediciones de proteinuria despu&eacute;s del diagn&oacute;stico de preeclampsia no deben recomendarse de manera rutinaria (2). Asimismo, la evidencia es suficiente para monitorizar a estas gestantes con conteo plaquetario, creatinina s&eacute;rica y transaminasas como indicadores de progresi&oacute;n de la enfermedad (2). La evidencia muestra que las pruebas de coagulaci&oacute;n no son &uacute;tiles como parte del seguimiento cuando el conteo plaquetario est&aacute; por debajo de 100.000 c&eacute;lulas/mm<sup>3</sup>. </p>      <p><b>7. &iquest;Cu&aacute;l es el manejo cl&iacute;nico recomendado para mujeres con preeclampsia no severa? </b></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c7.jpg"></center></p>     ]]></body>
<body><![CDATA[<p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c7A.jpg"></center></p>     <p>Existe poca evidencia de buena calidad que sustente el tratamiento antihipertensivo en mujeres con preeclampsia no severa. Sin embargo, hay evidencia en mujeres no embarazadas que avala el tratamiento de hipertensi&oacute;n arterial en rangos menores a la definici&oacute;n de severidad. La poca evidencia encontrada, la extrapolaci&oacute;n de la evidencia de mujeres no embarazadas as&iacute; como la experiencia de consenso de los expertos consultados y del GDG de esta gu&iacute;a, consideraron pertinente el manejo de la hipertensi&oacute;n arterial con cifras menores a las de severidad, principalmente debido a que no es infrecuente ver complicaciones propias de la hipertensi&oacute;n en las gestantes, como abruptio placentae o eclampsia en pacientes con cifras tensionales apenas elevadas e incluso en rangos de prehipertensi&oacute;n. En este sentido, el labetalol y el nifedipino han demostrado seguridad y efectividad en el control de la presi&oacute;n arterial en mujeres embarazadas, por lo que se recomienda su uso (2). Con relaci&oacute;n al manejo anticonvulsivante existe evidencia que sostiene que su uso no mejora desenlaces relacionados con la mortalidad materna o neonatal, aunque dicha evidencia es muy escasa. Por tanto, el GDG consider&oacute; que no debe darse tratamiento anticonvulsivante de rutina a mujeres con preeclampsia no severa. Por &uacute;ltimo, debido a la dificultad de encontrar evidencia contundente en el manejo de estas pacientes, y dada la complejidad de la patolog&iacute;a, se recomienda que estas sean manejadas por especialistas en trastornos hipertensivos del embarazo. </p>     <p><b>8. &iquest;En qu&eacute; momento est&aacute; recomendado el parto en mujeres con preeclampsia? </b></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c8.jpg"></center></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c8A.jpg"></center></p>     <p>La evidencia muestra una clara asociaci&oacute;n entre el manejo agresivo (parto inmediato) y el incremento en la morbilidad neonatal, sin lograr una disminuci&oacute;n de la morbilidad materna en las mujeres con preeclampsia severa. Por tanto el GDG, en consenso con los expertos consultados, consider&oacute; que el manejo expectante, intentando sobrepasar la semana 34 de gestaci&oacute;n, debe ser considerado antes que cualquier otra alternativa (2). Obviamente, existen condiciones maternas o fetales que obligan al parto de forma inmediata. Sin embargo, la evidencia disponible no es clara en cuanto a los criterios maternos necesarios para tomar la decisi&oacute;n de interrumpir la gestaci&oacute;n y, en general, se considera que estos criterios deben ser individualizados y definidos de acuerdo con la experticia del grupo de manejo as&iacute; como con la infraestructura con la que este cuente. Sobre esta base, la recomendaci&oacute;n deja como &uacute;nico criterio estricto para terminar la gestaci&oacute;n la imposibilidad de controlar la presi&oacute;n arterial, mientras que la disfunci&oacute;n de &oacute;rganos es un criterio por evaluar de acuerdo con su severidad y el nivel de complejidad del sitio de atenci&oacute;n. Se resalta que el tratamiento de las pacientes con preeclampsia severa debe ser realizado por equipos multidisciplinarios con experiencia y entrenados para realizar intervenciones de urgencia sobre la madre o el hijo, en un espacio diferente al de la hospitalizaci&oacute;n convencional, con las mismas caracter&iacute;sticas generales de una unidad de cuidado intermedio. En pacientes con gestaciones mayores a 36 semanas no se considera necesario el manejo expectante.</p>     <p><b>9. &iquest;Cu&aacute;l es el manejo cl&iacute;nico m&aacute;s recomendado de las mujeres con diagn&oacute;stico de hipertensi&oacute;n en el embarazo antes de la semana 20?</b></p>     ]]></body>
<body><![CDATA[<p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c9.jpg"></center></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c9A.jpg"></center></p>     <p>La evidencia encontrada en relaci&oacute;n con la seguridad de los antihipertensivos sugiere que existe un incremento en el riesto de malformaciones cong&eacute;nitas, restricci&oacute;n del crecimiento intrauterino y enfermedad renal en los hijos de madres que estuvieron expuestas a IECA durante el embarazo. Por otro lado, mujeres expuestas a ARA-II durante el embarazo pueden ver incrementado el riesgo de malformaciones cong&eacute;nitas. A pesar de que la calidad de los estudios encontrados no es &oacute;ptima, y considerando el gran riesgo sobre los hijos de estas mujeres y la existencia de alternativas terap&eacute;uticas seguras, el GDG recomienda no utilizar IECAs ni ARA-II durante el embarazo acogiendo la recomendaci&oacute;n de la GPC de NICE adaptada para esta secci&oacute;n (2). Cuando la mujer se encuentre en tratamiento con estos medicamentos y no conozca su estado de embarazo, en el momento de la confirmaci&oacute;n del mismo se debe ofrecer el cambio de medicamento. Por otro lado, de acuerdo con la revisi&oacute;n de la GPC de NICE adaptada para esta secci&oacute;n, as&iacute; como a reportes de las agencias reguladoras de medicamentos internacionales (FDA y EMEA), se hallan diferentes alternativas de medicamentos antihipertensivos con perfiles de seguridad y alertas conocidas. En general, se encuentra que las clorotiazidas se han relacionado con un riesgo mayor de anormalidades cong&eacute;nitas, trombocitopenia neonatal, hipoglicemia e hipovolemia. Por tal raz&oacute;n, al igual que la GPC de NICE adaptada para esta secci&oacute;n, el GDG decidi&oacute; no recomendar su uso durante el embarazo (2).</p>     <p>Con relaci&oacute;n al tratamiento de elecci&oacute;n para el   manejo de la hipertensi&oacute;n, tanto la GPC de NICE   adaptada para esta secci&oacute;n como el GDG encuentran   que no existe evidencia disponible suficiente para   sugerir un tratamiento de preferencia en mujeres con   hipertensi&oacute;n cr&oacute;nica (2). Al parecer existe evidencia   de que el tratamiento de la hipertensi&oacute;n en mujeres   con hipertensi&oacute;n cr&oacute;nica disminuye el riesgo de   progreso a hipertensi&oacute;n severa, pero no el progreso   a preeclampsia, aunque la evidencia es d&eacute;bil. Por &uacute;ltimo, aunque la evidencia es escasa en la comparaci&oacute;n   de diferentes alternativas terap&eacute;uticas respecto a   desenlaces de morbimortalidad materna o neonatal   de importancia (excepto la progresi&oacute;n a hipertensi&oacute;n   severa), s&iacute; existe evidencia en mujeres no embarazadas   adultas con hipertensi&oacute;n no severa con relaci&oacute;n al   control de presi&oacute;n arterial. Los ensayos cl&iacute;nicos de   alta calidad y sus posteriores meta-an&aacute;lisis muestran   diferencias en relaci&oacute;n con el nivel o control de la   presi&oacute;n arterial, por lo que tanto la GPC de NICE   adaptada para esta secci&oacute;n como el GDG consideran   que es necesario el control de la presi&oacute;n arterial en   mujeres con hipertensi&oacute;n cr&oacute;nica (2). </p>     <p><b>10. &iquest;Cu&aacute;l es el manejo cl&iacute;nico recomendado de mujeres con hipertensi&oacute;n gestacional? </b></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c10.jpg"></center></p>     <p>    ]]></body>
<body><![CDATA[<center><img src="/img/revistas/rcog/v64n3/v64n3a06c10A.jpg"></center></p>     <p>La revisi&oacute;n realizada por la GPC de NICE adaptada para esta secci&oacute;n muestra que existe pobre evidencia acerca del papel de las pruebas bioqu&iacute;micas en mujeres con hipertensi&oacute;n gestacional (2). Casi todas las pruebas parecen no predecir adecuadamente el desarrollo de preeclampsia. Sin embargo el GDG, junto con el consenso de expertos, consider&oacute; que los valores negativos de estas pruebas s&iacute; son buenos predictores en la pr&aacute;ctica cotidiana de no progreso de la enfermedad, por lo cual se recomienda su utilizaci&oacute;n. Por otro lado, la vigilancia del valor de proteinuria es importante para descartar el diagn&oacute;stico de hipertensi&oacute;n gestacional y confirmar el de preeclampsia. En cuanto al tratamiento antihipertensivo se encuentra que en la mayor&iacute;a de los estudios la calidad de la evidencia es baja y no es concluyente sobre su utilizaci&oacute;n en este grupo de gestantes. Sin embargo, como en el caso de la hipertensi&oacute;n cr&oacute;nica, existe alguna evidencia que muestra que el tratamiento antihipertensivo disminuye el riesgo de progresi&oacute;n a hipertensi&oacute;n severa. Asimismo, el labetalol parece ser el tratamiento de elecci&oacute;n para el manejo de hipertensi&oacute;n gestacional en estos casos. Por &uacute;ltimo, y al igual que en el manejo de la hipertensi&oacute;n cr&oacute;nica, la hipertensi&oacute;n gestacional con valores tensionales compatibles con hipertensi&oacute;n severa o con lesi&oacute;n de &oacute;rgano blanco debe ser tratada con las mismas consideraciones de la preeclampsia severa. </p>     <p><b>11. &iquest;Cu&aacute;l es el manejo cl&iacute;nico recomendado de mujeres con preeclampsia severa anteparto e intraparto?</b></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c11.jpg"></center></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c11A.jpg"></center></p>     <p>La evidencia identificada avala el uso de sulfato de magnesio para prevenir la eclampsia en mujeres con preeclampsia severa. Aunque la evidencia no es contundente en t&eacute;rminos de mortalidad materna o perinatal, el GDG consider&oacute; que la prevenci&oacute;n de episodios ecl&aacute;mpticos es un tema relevante en el manejo de estas mujeres. Por tanto se recomienda su uso en nuestra poblaci&oacute;n. En relaci&oacute;n con el manejo de la eclampsia, la evidencia es contundente respecto a la utilidad del sulfato de magnesio entre los diferentes anticonvulsivantes. Esta alternativa tiene mejores resultados en todos los escenarios cl&iacute;nicos y en casi todos los desenlaces maternos y neonatales. Por esta raz&oacute;n su uso es muy recomendado para el manejo anticonvulsivante en mujeres con eclampsia. Sin embargo, la dosis exacta del sulfato de magnesio no es clara. La &uacute;ltima revisi&oacute;n sistem&aacute;tica de Duley no presenta resultados contundentes pero dado que el estudio Magpie es el ensayo cl&iacute;nico m&aacute;s grande y con un alto nivel de evidencia, el GDG consider&oacute; que el uso del sulfato de magnesio en las dosis utilizadas en este estudio es la recomendaci&oacute;n m&aacute;s adecuada. </p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c11B.jpg"></center></p>     ]]></body>
<body><![CDATA[<p>No se encontraron ensayos cl&iacute;nicos controlados que compararan antihipertensivos con placebo. El GDG, al igual que la GPC de NICE adaptada para esta secci&oacute;n, considera necesario el tratamiento antihipertensivo en cualquier condici&oacute;n cl&iacute;nica en el embarazo que tenga cifras de presi&oacute;n arterial en rango de severidad. Las comparaciones encontradas no presentan muchas ventajas en el tratamiento con los diferentes esquemas (2). El labetalol es el medicamento de elecci&oacute;n para el tratamiento de hipertensi&oacute;n en el embarazo ya que este presenta algunas ventajas sobre la hidralazina en cuanto a eventos adversos, pero los ensayos que muestran esta informaci&oacute;n son peque&ntilde;os y con un riesgo de sesgo mayor. En nuestro pa&iacute;s el tratamiento con nifedipino oral es tambi&eacute;n una buena alternativa y los estudios identificados confirman que su uso es adecuado. No obstante, el GDG y el consenso de expertos consultados consideraron que los tratamientos intravenosos deben preferirse por condiciones de biodisponibilidad del medicamento y la tolerancia necesaria para usar la v&iacute;a oral. </p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c11C.jpg"></center></p>     <p>Se encontr&oacute; evidencia que sugiere un aumento de la morbilidad neonatal cuando se utilizan l&iacute;quidos o expansores de volumen en mujeres con preeclampsia severa. El GDG consider&oacute; que a pesar de no encontrar evidencia de morbilidad materna, el manejo rutinario de la expansi&oacute;n de volumen no es necesario en la mayor&iacute;a de pacientes. Por tanto, cuando se requiera un aporte importante de volumen se debe contar con monitorizaci&oacute;n invasiva que permita la adecuada titulaci&oacute;n de la administraci&oacute;n de cristaloides. </p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c11D.jpg"></center></p>     <p>La evidencia identificada por el GDG es de alta calidad y avala el uso de corticosteroides con el fin de acelerar la maduraci&oacute;n pulmonar fetal, especialmente en embarazos pret&eacute;rmino con des&oacute;rdenes hipertensivos y que tengan indicaci&oacute;n de parto inmediato. Tanto la GPC de NICE adaptada para esta secci&oacute;n como el GDG consideran necesario recomendar el uso de estos medicamentos (2). </p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c11E.jpg"></center></p>     <p>La evidencia identificada no es contundente respecto a cu&aacute;l v&iacute;a del parto debe escogerse en mujeres con preeclampsia severa. Por tanto, esta debe ser seleccionada por el equipo obst&eacute;trico que se encuentre manejando a las pacientes y ofrecerla de acuerdo a criterio individual. Sin embargo, el GDG y el consenso de expertos consider&oacute; necesario puntualizar que, en todo caso, se debe dar prioridad a la v&iacute;a de parto vaginal cuando esta sea posible. </p>     ]]></body>
<body><![CDATA[<p><b>12. &iquest;Est&aacute; recomendado el uso de corticosteroides en el manejo de mujeres con s&iacute;ndrome HELLP?</b> </p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c12.jpg"></center></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c12A.jpg"></center></p>     <p>La evidencia encontrada muestra que no existen ventajas del uso de corticosteroides en el manejo del s&iacute;ndrome hellp. El manejo, en consecuencia, debe basarse en un adecuado control de la presi&oacute;n arterial y un juicioso manejo de la perfusi&oacute;n. </p>      <p><b>13. &iquest;Cu&aacute;l es el tratamiento de elecci&oacute;n en mujeres embarazadas con hipertensi&oacute;n arterial, cifras tensionales menores a 160/110 mm/Hg y compromiso de &oacute;rgano blanco? </b></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c13.jpg"></center></p>     <p>No se encontr&oacute; evidencia que permitiera contestar esta pregunta. Este grupo de pacientes es muy particular y en general es muy peque&ntilde;o, as&iacute; que realizar estudios cl&iacute;nicos en este resulta dif&iacute;cil. Teniendo en cuenta que el nivel de presi&oacute;n arterial de algunas pacientes gestantes, en especial las m&aacute;s j&oacute;venes, usualmente es &ldquo;bajo&rdquo; (esto es, alrededor de 90/60 mm/Hg), no es extra&ntilde;o encontrar pacientes con cifras tensionales, incluso menores a 140/90 mm/Hg, que manifiestan cl&iacute;nica sugestiva de compromiso de &oacute;rgano por elevaci&oacute;n de la presi&oacute;n arterial. De acuerdo con estas observaciones el GDG, as&iacute; como el grupo de expertos consultados en consenso, consideran que esta poblaci&oacute;n debe ser manejada tal como se recomienda para las mujeres con preeclampsia severa. </p>     ]]></body>
<body><![CDATA[<p><b>14. &iquest;Cu&aacute;l es el monitoreo fetal recomendado en mujeres con alg&uacute;n trastorno hipertensivo del embarazo? </b></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c14.jpg"></center></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c14A.jpg"></center></p>     <p>Seg&uacute;n la evidencia identificada, el GDG considera que no hay justificaci&oacute;n para recomendar el uso del Doppler de arteria umbilical en estas gestantes. No existe a&uacute;n evidencia clara sobre el beneficio del uso rutinario del monitoreo fetal (cardiotocograf&iacute;a) aunque probablemente es la prueba diagn&oacute;stica de mayor uso durante el embarazo. El GDG y el consenso de expertos reconocen que su uso en la pr&aacute;ctica cl&iacute;nica es necesario, pero que este debe ser racionalizado, principalmente relacionado con la percepci&oacute;n de movimientos fetales por la madre, en presencia de sangrado vaginal o dolor abdominal (2). Asimismo, la evidencia no respalda el uso del perfil biof&iacute;sico como una prueba regular en mujeres con preeclampsia o alg&uacute;n trastorno hipertensivo del embarazo. Por &uacute;ltimo, la vigilancia fetal con ultrasonido para evaluar el crecimiento fetal y volumen de l&iacute;quido amni&oacute;tico debe ser solicitado de acuerdo con el riesgo individual de cada mujer embarazada (2). </p>     <p><b>15. &iquest;Cu&aacute;l medicamento est&aacute; contraindicado para el tratamiento de la hipertensi&oacute;n en mujeres en el periodo de posparto que se encuentren lactando? </b></p>     <p>    <center><img src="/img/revistas/rcog/v64n3/v64n3a06c15.jpg"></center></p>     <p>La GPC de NICE adaptada para esta secci&oacute;n no encontr&oacute; evidencia relacionada con medicamentos antihipertensivos en la lactancia, en especial de eventos adversos sobre los hijos de madres que se encuentren tomando alg&uacute;n tratamiento antihipertensivo y est&eacute;n lactando. La GPC de NICE presenta algunos resultados de estudios de laboratorio que pueden sugerir, sin desenlaces cl&iacute;nicos, si determinado agente antihipertensivo podr&iacute;a ser excretado en la leche materna (2). Estos estudios reportan que los siguientes agentes fueron excretados en la &#65453;nes importantes en plasma sangu&iacute;neo de la madre o del hijo: </p>     ]]></body>
<body><![CDATA[<p>&bull; Metildopa. </p>     <p>&bull; Beta-bloqueadores: labetalol, propanolol, atenolol y metoprolol. </p>     <p>&bull; Bloqueadores de canales de calcio: nifedipino y verapamilo. </p>     <p>&bull; IECA: enalapril y captopril. </p>          <p>&bull; Hidralazina.</p>     <p>&bull; Diur&eacute;ticos tiaz&iacute;dicos.</p>     <p>Es clara la limitaci&oacute;n de la evidencia con relaci&oacute;n a esta pregunta cl&iacute;nica. Sin embargo, con los resultados de los estudios <i>in vitro </i>presentados por la gu&iacute;a adaptada, el GDG realiza algunas recomendaciones a las mujeres que se encuentren lactando y requieran tratamiento antihipertensivo. </p>      <p><b>DECLARACI&Oacute;N DE CONFLICTOS DE INTER&Eacute;S </b></p>      <p>El trabajo cient&iacute;fico de investigaci&oacute;n, as&iacute; como la elaboraci&oacute;n de las recomendaciones incluidas en el presente documento, fue realizado de manera independiente por el Grupo Desarrollador de Gu&iacute;as (GDG) de la Universidad Nacional de Colombia. Todos los miembros del GDG, as&iacute; como las personas que han participado tanto en la colaboraci&oacute;n experta y en la revisi&oacute;n externa, realizaron declaraci&oacute;n de conflictos de inter&eacute;s previa a su participaci&oacute;n. Esta Gu&iacute;a se publica con el permiso del Ministerio de Salud y Protecci&oacute;n Social y el Departamento de Ciencia, Tecnolog&iacute;a e Innovaci&oacute;n (colciencias). ISBN 978-958-57937-4-3. </p>      <p><b>ACTUALIZACI&Oacute;N DE LA GU&Iacute;A </b></p>      ]]></body>
<body><![CDATA[<p>Las recomendaciones de esta Gu&iacute;a deben actualizarse en los pr&oacute;ximos tres a&ntilde;os a partir de su expedici&oacute;n o previamente en caso de disponer de nuevas evidencias que modifiquen de manera significativa las recomendaciones aqu&iacute; anotadas. </p>      <p><b>FUENTES DE FINANCIACI&Oacute;N </b></p>      <p>Ministerio de Salud y Protecci&oacute;n Social de Colombia y Departamento de Ciencia, Tecnolog&iacute;a e Innovaci&oacute;n (colciencias). </p>      <p><b>* REPRESENTANTES DEL GRUPO DESARROLLADOR DE LA GU&Iacute;A - UNIVERSIDAD NACIONAL DE COLOMBIA - ALIANZA CINETS </b></p>      <p>Giancarlo Buitrago-Guti&eacute;rrez, MD, MSc. M&eacute;dico cirujano. Mag&iacute;ster en Epidemiolog&iacute;a Cl&iacute;nica, Universidad Nacional de Colombia. Bogot&aacute;, Colombia. </p>     <p>Alejandro Castro-Sanguino, MD. M&eacute;dico cirujano. Especialista en Obstetricia y Ginecolog&iacute;a. Especialista en Medicina Cr&iacute;tica y Cuidado Intensivo. Profesor Asociado, Departamento de Obstetricia y Ginecolog&iacute;a, Universidad Nacional de Colombia. Bogot&aacute;, Colombia. <a href="mailto:acastros@unal.edu.co">acastros@unal.edu.co</a></p>     <p>Rodrigo Cifuentes-Borrero, MD, MSc, PhD. M&eacute;dico cirujano. Especialista en Obstetricia y Ginecolog&iacute;a. Doctor en Biolog&iacute;a de la Reproducci&oacute;n. Profesor Em&eacute;rito, Universidad del Valle. Cali, Colombia. </p>     <p>Martha Patricia Ospino-Guzm&aacute;n, MD, MSc. M&eacute;dica cirujana. Especialista en Epidemiolog&iacute;a. Estudiante de Maestr&iacute;a en Salud Sexual y Reproductiva. Integrante del grupo de investigaci&oacute;n de Salud Sexual y Reproductiva de la Universidad Nacional de Colombia. Bogot&aacute;, Colombia. </p>     <p>Ingrid Ar&eacute;valo-Rodr&iacute;guez, MSc, PhD (c). Epidemi&oacute;loga Cl&iacute;nica, Universidad Nacional de Colombia. PhD (c) en Pediatr&iacute;a, Obstetricia y Ginecolog&iacute;a, Medicina Preventiva y Salud P&uacute;blica, Universidad Aut&oacute;noma de Barcelona. Coordinadora General de Epidemiolog&iacute;a Cl&iacute;nica de la Gu&iacute;a. Instructor asociado Divisi&oacute;n de Investigaciones, Fundaci&oacute;n Universitaria de Ciencias de la Salud, Hospital de San Jos&eacute;-Hospital Infantil de San Jos&eacute;. Bogot&aacute;, Colombia. </p>     <p>P&iacute;o Iv&aacute;n G&oacute;mez-S&aacute;nchez, MD, MSc, Facog. Especialista en Obstetricia y Ginecolog&iacute;a, y en Epidemiolog&iacute;a. Mag&iacute;ster en Salud Sexual y Reproductiva. Profesor Titular y director del Grupo de Investigaci&oacute;n en Salud Sexual y Reproductiva de la Facultad de Medicina, Universidad Nacional de Colombia. L&iacute;der general de la GPC. Bogot&aacute;, Colombia. </p>     ]]></body>
<body><![CDATA[<p><b>RECONOCIMIENTO A INSTITUCIONES PARTICIPANTES </b></p>  </font>     <p><font size="2" face="verdana">Las siguientes instituciones participaron en los consensos de expertos o reuniones de socializaci&oacute;n de la GPC para la prevenci&oacute;n, detecci&oacute;n temprana y tratamiento de las complicaciones del embarazo, parto o puerperio: Federaci&oacute;n Colombiana de  Obstetricia y Ginecolog&iacute;a (FECOLSOG), Sociedad Colombiana de Anestesiolog&iacute;a y Reanimaci&oacute;n (SCARE), Asociaci&oacute;n Colombiana de Facultades de Medicina (ASCOFAME), Asociaci&oacute;n Colombiana de Facultades de Enfermer&iacute;a (ACOFAEN), Asociaci&oacute;n Colombiana de Empresas de Medicina Integral (ACEMI), Academia Nacional de Medicina, Colegio M&eacute;dico Colombiano, Asociaci&oacute;n Colombiana de Hospitales y Cl&iacute;nicas, Instituto Nacional de Salud, CAFAM IPS, Centro M&eacute;dico Imbanaco, Cl&iacute;nica de Occidente, Cl&iacute;nica de la Mujer, Cl&iacute;nica del Norte, Cl&iacute;nica Materno Infantil Farallones, Cl&iacute;nica el Rosario, Cl&iacute;nica el Prado, Fundaci&oacute;n Cardioinfantil, Fundaci&oacute;n Valle de Lili, Fundaci&oacute;n Santaf&eacute; de Bogot&aacute;, Hospital Militar, Hospital San Jos&eacute;, Hospital Sim&oacute;n Bol&iacute;var, Fundaci&oacute;n Universitaria de Ciencias de la Salud, Universidad de Antioquia, Universidad del Quind&iacute;o, Universidad Libre, Universidad Surcolombiana. </font></p> <font face="verdana" size="2"><font face="verdana" size="2">    <p><b>NOTAS AL PIE DE P&Aacute;GINA</b></p>     <p><a href="#1" name="nota1"><sup>1</sup></a> Esta gu&iacute;a y sus secciones hacen parte de un grupo de 25 GPC basadas en la evidencia que incorporan evaluaciones econ&oacute;micas y consideraciones de implementabilidad en el contexto del Sistema General de Seguridad Social en Salud colombiano, las cuales se desarrollaron por iniciativa del Ministerio de Salud y Protecci&oacute;n Social y el Departamento de Ciencia, Tecnolog&iacute;a e Innovaci&oacute;n (Colciencias) en temas prioritarios y de alta prevalencia en el pa&iacute;s mediante contrato otorgado a la Universidad Nacional de Colombia en el a&ntilde;o 2010. </font>     <p><b>REFERENCIAS </b></p>         <!-- ref --><p>1. Davey DA, MacGillivray I. The classification and definition of the hypertensive disorders of pregnancy. Am J Obstet Gynecol. 1988;158:892-8. Epub 1988/04/01.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000188&pid=S0034-7434201300030000600001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref -->            </p>          <!-- ref --><p>2. National Collaborating Centre for Women's and Children's Health. Hypertension in pregnancy: the management of hypertensive disorders during pregnancy. London: NICE; 2010.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000190&pid=S0034-7434201300030000600002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </p>       <!-- ref --><p>3. Brown MA, Lindheimer MD, de Swiet M, van Assche A, Moutquin JM. The classification and diagnosis of the hypertensive disorders of pregnancy: statement from the International Society for the Study of Hypertension in Pregnancy (ISSHP). Hypertens Pregnancy. 2001;20:IX-XIV. Epub 2002/06/05.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000192&pid=S0034-7434201300030000600003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref -->          </p>       <!-- ref --><p>4. National Collaborating Centre for Women's and Children's Health-National Institute for Health and Clinical Excellence. Hypertension in pregnancy. London: Royal College of Obstetricians and Gynaecologists; 2010 (cited 2011 Sept 1). Disponible en: <a href="http://www.nice.org.uk/cg107" target="_blank">http://www.nice.org.uk/cg107</a>.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000194&pid=S0034-7434201300030000600004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref -->          </p>       <!-- ref --><p>5. Ministerio de Salud y Protecci&oacute;n Social, Colciencias. Gu&iacute;a de pr&aacute;ctica cl&iacute;nica para la prevenci&oacute;n, detecci&oacute;n temprana y tratamiento de las complicaciones del embarazo, parto o puerperio. Versi&oacute;n completa. Bogot&aacute;, Colombia: Alianza cinets; 2013. Disponible en: <a href="http://www.guiascolcienciasminproteccionsocialalianzacinets.org/index.php?option=com_wrapper&amp;view=wrappe r&amp;Itemid=552" target="_blank">http://www.guiascolcienciasminproteccionsocialalianzacinets.org/index.php?option=com_wrapper&view=wrappe r&Itemid=552</a>.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000196&pid=S0034-7434201300030000600005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref -->              </p>          <!-- ref --><p>6. Ministerio de Salud y Protecci&oacute;n Social, Colciencias. Gu&iacute;a de pr&aacute;ctica cl&iacute;nica para la prevenci&oacute;n, detecci&oacute;n temprana y tratamiento de las complicaciones del embarazo, parto o puerperio. Versi&oacute;n para pacientes. Bogot&aacute;, Colombia: Alianza cinets; 2013. Disponible en: <a href="http://www.guiascolcienciasminproteccionsocialalianzacinets.org/index. php?option=com_wrapper&amp;view=wrapper&amp;Item id=552" target="_blank">http://www.guiascolcienciasminproteccionsocialalianzacinets.org/index. php?option=com_wrapper&view=wrapper&Item id=552</a>.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000198&pid=S0034-7434201300030000600006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </p>            <!-- ref --><p>7. Duckitt K, Harrington D. Risk factors for preeclampsia at antenatal booking: systematic review of controlled studies. BMJ. 2005;330:565. Epub 2005/03/04.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000200&pid=S0034-7434201300030000600007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </p>     <!-- ref --><p>8. Milne F, Redman C, Walker J, Baker P, Bradley J, Cooper C, et al. The pre-eclampsia community guideline (PRECOG): how to screen for and detect onset of pre-eclampsia in the community. BMJ. 2005;330:576-80. Epub 2005/03/12.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000202&pid=S0034-7434201300030000600008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>     <!-- ref --><p>9. Meads CA, Cnossen JS, Meher S, Juarez-Garcia A, ter Riet G, Duley L, et al. Methods of prediction and prevention of pre-eclampsia: systematic reviews of accuracy and effectiveness literature with economic modelling. Health Technol Assess. 2008;12:iii-iv, 1-270. Epub 2008/03/12.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000204&pid=S0034-7434201300030000600009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>     <!-- ref --><p>10. Conde-Agudelo A, Villar J, Lindheimer M. Maternal infection and risk of preeclampsia: systematic review and metaanalysis. Am J Obstet Gynecol. 2008;198:7-22. Epub 2008/01/02.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000206&pid=S0034-7434201300030000600010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </p>     <!-- ref --><p>11. Siqueira FM, Cota LO, Costa JE, Haddad JP, Lana AM, Costa FO. Maternal periodontitis as a potential risk variable for preeclampsia: a case-control study. J Periodontol. 2008;79:207-15. Epub 2008/02/07.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000208&pid=S0034-7434201300030000600011&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </p>     <!-- ref --><p>12. Duley L, Henderson-Smart DJ, Meher S, King JF. Antiplatelet agents for preventing pre-eclampsia and its complications. Cochrane Database Syst Rev. 2007(2):CD004659. Epub 2007/04/20.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000210&pid=S0034-7434201300030000600012&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </p>      <!-- ref --><p>13. Meher S, Duley L. Nitric oxide for preventing preeclampsia and its complications. Cochrane Database Syst Rev. 2007(2):CD006490. Epub 2007/04/20.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000212&pid=S0034-7434201300030000600013&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref -->        </p>     <!-- ref --><p>14. Meher S, Duley L. Progesterone for preventing preeclampsia and its complications. Cochrane Database Syst Rev. 2006(4):CD006175. Epub 2006/10/21.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000214&pid=S0034-7434201300030000600014&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref -->        </p>     <!-- ref --><p>15. Churchill D, Beevers GD, Meher S, Rhodes C. Diuretics for preventing pre-eclampsia. Cochrane Database Syst Rev. 2007(1):CD004451. Epub 2007/01/27.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000216&pid=S0034-7434201300030000600015&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref -->        </p>      <!-- ref --><p>16. Mello G, Parretti E, Fatini C, Riviello C, Gensini F, Marchionni M, et al. Low-molecular-weight heparin lowers the recurrence rate of preeclampsia and restores the physiological vascular changes in angiotensinconverting enzyme DD women. Hypertension. 2005;45:86-91. Epub 2004/11/24.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000218&pid=S0034-7434201300030000600016&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </p>     <!-- ref --><p>17. Hofmeyr GJ, Atallah AN, Duley L. Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems. Cochrane Database Syst Rev. 2006(3):CD001059. Epub 2006/07/21.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000220&pid=S0034-7434201300030000600017&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </p>        <!-- ref --><p>18. Rumbold A, Duley L, Crowther CA, Haslam RR. Antioxidants for preventing pre-eclampsia. Cochrane Database Syst Rev. 2008(1):CD004227. Epub 2008/02/07.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000222&pid=S0034-7434201300030000600018&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref -->          </p>       <!-- ref --><p>19. Wen SW, Chen XK, Rodger M, White RR, Yang Q, Smith GN, et al. Folic acid supplementation in early second trimester and the risk of preeclampsia. Am J Obstet Gynecol. 2008;198:45 e1-7. Epub 2008/01/02.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000224&pid=S0034-7434201300030000600019&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </p>        <!-- ref --><p>20. Makrides M, Duley L, Olsen SF. Marine oil, and other prostaglandin precursor, supplementation for pregnancy uncomplicated by pre-eclampsia or intrauterine growth restriction. Cochrane Database Syst Rev. 2006(3):CD003402. Epub 2006/07/21.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000226&pid=S0034-7434201300030000600020&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </p>        <!-- ref --><p>21. Meher S, Duley L. Garlic for preventing pre-eclampsia and its complications. Cochrane Database Syst Rev. 2006(3):CD006065. Epub 2006/07/21.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000228&pid=S0034-7434201300030000600021&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref -->          </p>       <!-- ref --><p>22. Meher S, Duley L. Rest during pregnancy for preventing pre-eclampsia and its complications in women with normal blood pressure. Cochrane Database Syst Rev. 2006(2):CD005939. Epub 2006/04/21.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000230&pid=S0034-7434201300030000600022&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref -->          </p>       <!-- ref --><p>23. 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