<?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>0120-8705</journal-id>
<journal-title><![CDATA[CES Medicina]]></journal-title>
<abbrev-journal-title><![CDATA[CES Med.]]></abbrev-journal-title>
<issn>0120-8705</issn>
<publisher>
<publisher-name><![CDATA[Universidad CES]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-87052011000200006</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Eficacia del tratamiento de la enfermedad periodontal sobre marcadores de riesgo cardiovascular]]></article-title>
<article-title xml:lang="en"><![CDATA[Effectiveness of the treatment of periodontal disease on markers of cardiovascular risk]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[COLONIA GARCÍA]]></surname>
<given-names><![CDATA[ADRIANA]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[DUQUE DUQUE]]></surname>
<given-names><![CDATA[ANDRÉS]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad CES  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad CES Grupo de investigación CBO-CES ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>07</month>
<year>2011</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>07</month>
<year>2011</year>
</pub-date>
<volume>25</volume>
<numero>2</numero>
<fpage>181</fpage>
<lpage>192</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-87052011000200006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-87052011000200006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-87052011000200006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Los principales factores de riesgo relacionados con eventos cardiovasculares son: edad, género, hipertensión arterial, diabetes mellitus, tabaquismo, bajo nivel de lipoproteínas de alta densidad, genética, estrés, obesidad y sedentarismo; pero existen factores de riesgo no identificados aún para explicar el modelo cardiovascular. La enfermedad periodontal ha emergido en las últimas décadas como un posible factor de riesgo para el desarrollo de eventos cardiovasculares. Una revisión sistemática presenta un riesgo relativo (RR) de 1,19 (IC 95 %, 1,08 -1,32) para la asociación entre la enfermedad periodontal y las enfermedades cardiovasculares y de 2,85 (IC 95 %, 1,78-4,56) para accidentes cerebrovasculares. La periodontitis tiene un efecto sistémico al producir gran cantidad de mediadores inflamatorios (hipersecreción de citoquinas IL-1, IL-6, IL-8, prostaglandina E2, PCR y fibrinógeno). Se realizó una revisión narrativa acerca del impacto de la terapia periodontal mecánica y farmacológica sobre la función endotelial y sobre la disminución de sustancias pro-inflamatorias marcadoras de riesgo cardiovascular como la PCR y los niveles séricos de IL-6. Se concluye que la enfermedad periodontal es un factor de riesgo modificable, susceptible de ser prevenido y tratado con procedimientos de bajo riesgo, por lo tanto su tratamiento puede ser un componente integral de la cardiología preventiva.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The main risk factors associated with cardiovascular events include age, gender, hypertension, diabetes mellitus, smoking, low high-density lipoprotein, genetics, stress, obesity and physical inactivity. There are no identified risk factors still to explain the cardiovascular model. Periodontal disease has emerged in recent decades as a possible risk factor for developing cardiovascular events. A systematic review presents a relative risk (RR) of 1.19 (95% CI, 1.08 to 1.32) for the association between periodontal disease and cardiovascular disease and 2.85 (95% CI, 1, 78 to 4.56) for stroke. Periodontitis has a systemic effect to produce large amounts of inflammatory mediators (hyper secretion of cytokines IL-1, IL-6, IL-8, prostaglandin E2, CRP and fibrinogen). We conducted a narrative review of the impact of mechanical and drug periodontal therapy on endothelial function and decreased pro-inflammatory substances cardiovascular risk markers such as CRP and serum IL-6. It is concluded that periodontal disease is a modifiable risk factor, which could be prevented and treated with low-risk procedures, so their treatment can be an integral component of preventive cardiology]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Periodontitis]]></kwd>
<kwd lng="es"><![CDATA[Enfermedades cardiovasculares]]></kwd>
<kwd lng="es"><![CDATA[Marcadores biológicos]]></kwd>
<kwd lng="es"><![CDATA[Factores de riesgo]]></kwd>
<kwd lng="en"><![CDATA[Periodontal diseases]]></kwd>
<kwd lng="en"><![CDATA[Cardiovascular diseases]]></kwd>
<kwd lng="en"><![CDATA[Biological markers]]></kwd>
<kwd lng="en"><![CDATA[Risk factors]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><b><font size="2" face="Verdana">ART&Iacute;CULO DE REVISI&Oacute;N </font></b></p>      <p align="center"><b><font size="4" face="Verdana">Eficacia del tratamiento de la enfermedad periodontal sobre marcadores de riesgo cardiovascular</font SIZE="2" FACE="Verdana"></b></p>      <p align="center"><font size="3" face="Verdana"> <b>Effectiveness of the treatment of periodontal disease on markers of cardiovascular risk</b></font></p>      <p><font face="Verdana" size="2">ADRIANA COLONIA GARC&Iacute;A<sup>1</sup>, ANDR&Eacute;S DUQUE DUQUE<sup>2</sup><br />   </font><br />   </sup><font size="2" face="Verdana"><sup>1 </sup>Periodoncista, Universidad CES. <a href="mailto:adrianacolonia18@gmail.com">adrianacolonia18@gmail.com</a></font>    <br> <font size="2" face="Verdana"><sup>2 </sup>Periodoncista, Mag&iacute;ster Epidemiolog&iacute;a, Universidad CES. Grupo de investigaci&oacute;n CBO-CES</font></p>     <p><font size="2" face="Verdana"><br />   <br /> </font></p> <hr size="1" noshade="noshade" />     <p><font size="2" face="Verdana"><b>RESUMEN</b></font></p>     <p> <font size="2" face="Verdana">Los principales factores de riesgo relacionados con eventos cardiovasculares son: edad, g&eacute;nero, hipertensi&oacute;n arterial, diabetes mellitus, tabaquismo, bajo nivel de lipoprote&iacute;nas de alta densidad, gen&eacute;tica, estr&eacute;s, obesidad y sedentarismo; pero existen factores de riesgo no identificados a&uacute;n para explicar el modelo cardiovascular. La enfermedad periodontal ha emergido en las &uacute;ltimas d&eacute;cadas como un posible factor de riesgo para el desarrollo de eventos cardiovasculares. Una revisi&oacute;n sistem&aacute;tica presenta un riesgo relativo (RR) de 1,19 (IC 95 %, 1,08 -1,32) para la asociaci&oacute;n entre la enfermedad periodontal y las enfermedades cardiovasculares y de 2,85 (IC 95 %, 1,78-4,56) para accidentes cerebrovasculares. La periodontitis tiene un efecto sist&eacute;mico al producir gran cantidad de mediadores inflamatorios (hipersecreci&oacute;n de citoquinas IL-1, IL-6, IL-8, prostaglandina E2, PCR y fibrin&oacute;geno). Se realiz&oacute; una revisi&oacute;n narrativa acerca del impacto de la terapia periodontal mec&aacute;nica y farmacol&oacute;gica sobre la funci&oacute;n endotelial y sobre la disminuci&oacute;n de sustancias pro-inflamatorias marcadoras de riesgo cardiovascular como la PCR y los niveles s&eacute;ricos de IL-6. Se concluye que la enfermedad periodontal es un factor de riesgo modificable, susceptible de ser prevenido y tratado con procedimientos de bajo riesgo, por lo tanto su tratamiento puede ser un componente integral de la cardiolog&iacute;a preventiva.</font></p> <font size="2" face="Verdana">     <p><b> PALABRAS CLAVE</b></p>     <p> Periodontitis, Enfermedades cardiovasculares, Marcadores biol&oacute;gicos, Factores de riesgo</p> <hr size="1" noshade="noshade" />     ]]></body>
<body><![CDATA[<p><b>ABSTRACT </b></p>     <p>The main risk factors associated with cardiovascular events include age, gender, hypertension, diabetes mellitus, smoking, low high-density lipoprotein, genetics, stress, obesity and physical inactivity. There are no identified risk factors still to explain the cardiovascular model. Periodontal disease has emerged in recent decades as a possible risk factor for developing cardiovascular events. A systematic review presents a relative risk (RR) of 1.19 (95% CI, 1.08 to 1.32) for the association between periodontal disease and cardiovascular disease and 2.85 (95% CI, 1, 78 to 4.56) for stroke. Periodontitis has a systemic effect to produce large amounts of inflammatory mediators (hyper secretion of cytokines IL-1, IL-6, IL-8, prostaglandin E2, CRP and fibrinogen). We conducted a narrative review of the impact of mechanical and drug periodontal therapy on endothelial function and decreased pro-inflammatory substances cardiovascular risk markers such as CRP and serum IL-6. It is concluded that periodontal disease is a modifiable risk factor, which could be prevented and treated with low-risk procedures, so their treatment can be an integral component of preventive cardiology</p> </font><font size="2" face="Verdana">     <p><b>KEY WORDS </b></p>     <p> Periodontal diseases, Cardiovascular diseases, Biological markers, Risk factors</p> <hr size="1" noshade="noshade" /> </p>  </font>     <p><b><font face="Verdana" size="3">INTRODUCCI&Oacute;N</font></b></p>     <p><font size="2" face="Verdana">La periodontitis es una enfermedad inflamatoria cr&oacute;nica que destruye los tejidos de soporte del diente. Su etiolog&iacute;a es multifactorial pero requiere una biopel&iacute;cula y una respuesta del hu&eacute;sped a ella, adem&aacute;s de la participaci&oacute;n de otros factores de riesgo. Se ha reportado una posible asociaci&oacute;n entre la enfermedad periodontal con enfermedades y condiciones sist&eacute;micas, como eventos adversos del embarazo (1-4), diabetes mellitus (5-8), enfermedades pulmonares (9-11) y enfermedad de Alzheimer (12,13). </font></p>     <p><font size="2" face="Verdana">Para evaluar la relaci&oacute;n entre el tratamiento periodontal   y el impacto sobre la enfermedad cardiovascular   (ECV) se realiz&oacute; una revisi&oacute;n narrativa   utilizando una estrategia de b&uacute;squeda desde   1990 hasta junio de 2011 en las bases de datos:   Pubmed, Embase y Clinical Trials en Cochrane. Adem&aacute;s   se realiz&oacute; una b&uacute;squeda manual en J Periodontology,   J Clin Periodontology , Periodontology 2000,   y J Periodontal Research. Los t&eacute;rminos de b&uacute;squeda   que se utilizaron fueron Cardiovascular diseases, Periodontal   diseases y Periodontal treatment. Se utiliz&oacute;   la siguiente estrategia: ('Cardiovascular Diseases'   Mesh ) AND 'Periodontal Diseases' Mesh con 1909 resultados, ('Cardiovascular Diseases' Mesh ) AND 'Periodontal Diseases' Mesh Clinical Trial, Randomized Controlled Trial con 48 resultados y ('Cardiovascular Diseases' Mesh ) AND 'Periodontal Diseases' Mesh AND treatment con 35 resultados.</font></p>      <p><font size="2" face="Verdana"><b>Enfermedad Periodontal y Enfermedad Cardiovascular </b></font></p>     <p><font size="2" face="Verdana">Existe evidencia acerca de la relaci&oacute;n entre la enfermedad periodontal y un mayor riesgo de ECV, como infarto del miocardio (IM), ictus (enfermedad cerebro-vascular), enfermedad coronaria y perif&eacute;rica (14-22). Los principales factores de riesgo relacionados con ECV, son: edad, g&eacute;nero, hipertensi&oacute;n arterial, diabetes mellitus, tabaquismo, bajo nivel de HDL, gen&eacute;tica, estr&eacute;s, obesidad y sedentarismo (1). Existen factores de riesgo no identificados a&uacute;n para explicar el modelo cardiovascular y uno de ellos podr&iacute;a ser la enfermedad periodontal. </font></p>     <p><font size="2" face="Verdana">Frecuentemente en las enfermedades periodontales se encuentran concentraciones elevadas de marcadores inflamatorios s&eacute;ricos asociadas con un mayor riesgo cardiovascular. Otras enfermedades cr&oacute;nicas, como ateroesclerosis, artritis reumatoidea, diabetes mellitus, lupus eritematoso sist&eacute;mico, psoriasis tambi&eacute;n muestran este comportamiento. Algunos de los marcadores inflamatorios s&eacute;ricos m&aacute;s com&uacute;nmente encontrados son: interleuquinas (IL-6, 8, 10, 18), prote&iacute;na C reactiva de alta sensibilidad (hs-PCR), factor de necrosis tumoral alfa (TNF-&alpha;) y prote&iacute;na quimioatrayente de monocitos-1 (MCP-1) (23).   </font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana">Una revisi&oacute;n sistem&aacute;tica realizada por Janket y colaboradores encuentra mayor riesgo de futuros ECV en individuos con enfermedad periodontal con un RR de 1,19 (IC 95 %, 1,08-1,32), de 2,85 (IC 95 %, 1,78-4,56) para el ictus, y de 1,44 (IC 95 %, 1,20-1,73) en sujetos menores de 65 a&ntilde;os (24). </font></p>     <p><font size="2" face="Verdana">Existe evidencia acerca de la plausibilidad biol&oacute;gica   de esa asociaci&oacute;n, y c&oacute;mo la enfermedad   periodontal influye sobre los marcadores inflamatorios   relacionados con los ECV. Dado que la   enfermedad periodontal puede ser prevenida y   manejada con terapias de bajo riesgo (mec&aacute;nica   y farmacol&oacute;gica), &eacute;sta podr&iacute;a ser implementada   en los programas preventivos cardiovasculares.   </font></p>     <p><font size="2" face="Verdana">El prop&oacute;sito de este art&iacute;culo es revisar la evidencia   que soporta la influencia del tratamiento periodontal   sobre la reducci&oacute;n de marcadores inflamatorios   de riesgo cardiovascular y cambios   positivos en la funci&oacute;n endotelial. </font></p>      <p><font size="2" face="Verdana"><b>Aspectos patofisiol&oacute;gicos de la asociaci&oacute;n entre la enfermedad periodontal y los eventos cardiovasculares</b></font>     <p><font size="2" face="Verdana">La enfermedad periodontal comparte con la ECV algunos factores de riesgo: ambas incrementan su frecuencia con la edad, son m&aacute;s prevalentes en hombres, m&aacute;s frecuentes en nivel socio-educativo bajo, y aumentan exponencialmente con el consumo de cigarrillo (25). Tambi&eacute;n existe evidencia de que la enfermedad periodontal puede aumentar o modificar algunos factores de riesgo ya identificados de ECV (14). </font></p>     <p><font size="2" face="Verdana">Durante la enfermedad periodontal se produce   una inflamaci&oacute;n sostenida por un desequilibrio   de la respuesta inmune local. Se ha encontrado   hipersecreci&oacute;n de citoquinas IL-1, IL-6, IL-8,   prostaglandina E2, PCR y fibrin&oacute;geno. Esta hipersecreci&oacute;n   puede estar ligada a polimorfismos gen&eacute;ticos   que regulan la respuesta inflamatoria (26).</font></p>     <p><font size="2" face="Verdana">Hay dos v&iacute;as principales para la explicaci&oacute;n biol&oacute;gica   de la relaci&oacute;n entre enfermedad periodontal   y ECV: la hip&oacute;tesis infecciosa o bacteriana   y la hip&oacute;tesis inflamatoria, siendo esta &uacute;ltima   probablemente la de mayor fundamento.</font></p>      <p><font size="2" face="Verdana"><b>Hip&oacute;tesis infecciosa y bacteremia de origen oral</b></font></p>     <p><font size="2" face="Verdana">La infecci&oacute;n localizada genera una respuesta inflamatoria cr&oacute;nica que favorece el desarrollo y progresi&oacute;n de la ateroesclerosis. Estudios en modelos animales sugieren que la infecci&oacute;n con Porfiromona gingivalis activa la respuesta de fase aguda, la lipemia y aumenta la formaci&oacute;n de la lesi&oacute;n ateromatosa (27,28). Los pat&oacute;genos periodontales y sus ant&iacute;genos se diseminan en el torrente sangu&iacute;neo y se depositan en el endotelio vascular. De esta forma se promueve la formaci&oacute;n de trombos por la agregaci&oacute;n plaquetaria (29). </font></p>     <p><font size="2" face="Verdana">La bacteremia transitoria es com&uacute;n despu&eacute;s   de procedimientos odontol&oacute;gicos como extracci&oacute;n   dental (10-80 %), cirug&iacute;a periodontal   (36-88 %), raspado y alisado radicular subgingival   (8-80 %), y profilaxis (40 %). Tambi&eacute;n   puede ocurrir durante actividades cotidianas   como cepillarse los dientes y usar hilo dental   (20-68 %) (30).   </font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana">Se ha detectado ADN de bacterias periodontopat&oacute;genas   en muestras de endarterectom&iacute;a y   en placas ateromatosas humanas carot&iacute;deas   y a&oacute;rticas (29,31-33). Un estudio confirm&oacute; la   presencia de cuatro especies periodonto-pat&oacute;genas   en pacientes con estenosis carot&iacute;dea:   Aggregatibacter actinomycetemcomitans, Tannerella   forsythia, Porfiromona gingivalis y Prevotella intermedia,   (29,31). </font></p>      <p><font size="2" face="Verdana"><b>Hip&oacute;tesis inflamatoria</b></font></p>     <p><font size="2" face="Verdana">Existe controversia acerca de la influencia de la respuesta inflamatoria sist&eacute;mica que sigue a una infecci&oacute;n cr&oacute;nica de bajo grado (34) sobre la patog&eacute;nesis ateroescler&oacute;tica y el posible uso de los biomarcadores inflamatorios para predecir futuros eventos cardiovasculares (35). En pacientes con periodontitis la liberaci&oacute;n de lipopolisac&aacute;ridos bacterianos (14) desencadena una inflamaci&oacute;n con una elevada producci&oacute;n de citoquinas (IL-1, IL-6, quimioquinas), prote&iacute;nas de fase aguda, mol&eacute;culas de adhesi&oacute;n (mol&eacute;cula de adhesi&oacute;n intercelular ICAM, mol&eacute;cula de adhesi&oacute;n celular vascular VCAM), TNF-&alpha; y MCP-1. Adem&aacute;s se evidencia un aumento en el reclutamiento de linfocitos, en la ingesta de l&iacute;pidos por los macr&oacute;fagos y en la producci&oacute;n de metaloproteinasas (MMP's) (23). </font></p>     <p><font size="2" face="Verdana">Existe controversia acerca del papel de estos   fen&oacute;menos sobre la homeostasis vascular (34).   Un posible mecanismo es la disfunci&oacute;n endotelial,   donde las infecciones cr&oacute;nicas como la   periodontitis, podr&iacute;an iniciar o modular la acumulaci&oacute;n   intravascular de c&eacute;lulas inflamatorias y   l&iacute;pidos (aterosclerosis) (14).   </font></p>     <p><font size="2" face="Verdana">La prote&iacute;na C reactiva (PCR) y la IL-6 son marcadores   muy sensibles para evaluar el estado   inflamatorio de un individuo. La PCR, un reactante   de fase aguda, se produce principalmente   en el h&iacute;gado en respuesta a infecci&oacute;n o trauma   (25). La PCR induce la expresi&oacute;n de mol&eacute;culas de   adhesi&oacute;n celular (VCAM-1, P-selectina e ICAM-1   solubles), mediando as&iacute; el reclutamiento de leucocitos   en los sitios de inicio de ateromas y el   da&ntilde;o posterior al endotelio vascular (23).</font></p>     <p><font size="2" face="Verdana">Un consenso de la Asociaci&oacute;n Americana del   Coraz&oacute;n (AHA, por sus siglas en ingl&eacute;s) y del   Centro para el Control de Enfermedades (CDC)   se ha enfocado en la utilidad cl&iacute;nica de estos   marcadores para identificar el riesgo de ECV.   Agrupando datos epidemiol&oacute;gicos de 40 000 individuos   sanos se identificaron tres categor&iacute;as   de riesgo cardiovascular basadas en los niveles   de PCR encontrados (<a href="#t1">Cuadro 1</a>) (35). Mientras   que un meta-an&aacute;lisis reporta una diferencia de   medias ponderada en la PCR (1,56 mg/l, IC 95 %   1,21-1,90, p<0,00001) entre pacientes con periodontitis   y controles sanos (36). </font></p>      <p align="center"><img src="img/revistas/cesm/v25n2/v25n2a06t1.jpg"><a name="t1"></a></p>      <p><font size="2" face="Verdana">La IL-6 es una citoquina pleiotr&oacute;pica secretada por fibroblastos, c&eacute;lulas epiteliales y c&eacute;lulas mononucleares (monocitos-macr&oacute;fagos) que participa en la coagulaci&oacute;n, lo cual puede resultar en el desarrollo de aterosclerosis (25). </font></p>     <p><font size="2" face="Verdana">La IL-6 y la PCR se relacionan directamente porque   la IL-6 es la principal citoquina que regula   la expresi&oacute;n hep&aacute;tica de la PCR, y esta &uacute;ltima   amplifica la respuesta inflamatoria y pro-coagulante.   La IL-6 puede aumentar las concentraciones   plasm&aacute;ticas de fibrin&oacute;geno y el inhibidor del   activador del plasmin&oacute;geno tipo-1 (23).</font></p>     <p><font size="2" face="Verdana"> El fibrin&oacute;geno es la principal prote&iacute;na plasm&aacute;tica   de la coagulaci&oacute;n, un co-factor de la agregaci&oacute;n   plaquetaria y un reactante de fase aguda   (25) que se encuentra aumentado en individuos   con mayor riesgo de ECV.</font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana"> La enfermedad periodontal tambi&eacute;n puede   causar liberaci&oacute;n de MMP's. La MMP-8 genera   mayor destrucci&oacute;n tisular en pacientes con periodontitis   y ECV. Los periodontopat&oacute;genos pueden   sobre-regular la expresi&oacute;n de MMP-9 que   digiere componentes estructurales de la matriz   extracelular, importante en la patog&eacute;nesis de la enfermedad vascular (37,38).</font></p>      <p><font size="2" face="Verdana"><b>Efecto del tratamiento periodontal sobre los factores de riesgo cardiovascular</b></font></p>     <p><font size="2" face="Verdana">Se han realizado ensayos cl&iacute;nicos de intervenci&oacute;n periodontal para medir el comportamiento de PCR, fibrin&oacute;geno, amiloide-A s&eacute;rico y citoquinas proinflamatorias (IL-1B, IL-6, TNF-&alpha;). Tambi&eacute;n se ha medido la dilataci&oacute;n mediada por flujo vascular (DMF) (20,39-41). </font></p>     <p><font size="2" face="Verdana">Aunque existe controversia acerca del papel fisiol&oacute;gico   de la PCR como valor pron&oacute;stico de   riesgo cardiovascular se ha recomendado que es   apropiado hacer modificaciones en el estilo de   vida en pacientes con niveles de PCR elevados,   tales como controlar obesidad, h&aacute;bito de fumar,   diabetes y falta de ejercicio (42,43).   </font></p>     <p><font size="2" face="Verdana">Ebersole y Machen fueron los primeros en reportar   el impacto del tratamiento periodontal   en la PCR. Utilizando tratamiento periodontal   (raspado y alisado radicular) y medicamentos   antiinflamatorios no esteroideos (flurbiprofeno),   encontraron que estos tratamientos podr&iacute;an reducir   los niveles s&eacute;ricos de PCR (44).   </font></p>     <p><font size="2" face="Verdana">En una poblaci&oacute;n escocesa (11 869 sujetos mayores   de 35 a&ntilde;os) se reportaron 555 ECV, 170   fueron mortales y 411 se atribuyeron a cardiopat&iacute;a   coronaria. Al ajustar diferentes variables, los   participantes con higiene oral deficiente (menos   de un cepillado/d&iacute;a) tuvieron mayor riesgo (70   %) de ECV y muerte, que aquellos que cepillaban   sus dientes dos veces/d&iacute;a. Se encontr&oacute; una asociaci&oacute;n   significativa entre la frecuencia del cepillado   y marcadores de inflamaci&oacute;n sist&eacute;mica.   Los sujetos que menos se cepillaban presentaron   concentraciones aumentadas de PCR (4,18   &plusmn; 6,95mg/l) y de fibrin&oacute;geno (2,98 &plusmn; 0,77mg/l)   (41).   </font></p>     <p><font size="2" face="Verdana">El tratamiento periodontal no quir&uacute;rgico a&uacute;n en   pacientes sist&eacute;micamente sanos y sin ninguna   otra fuente de inflamaci&oacute;n evidente, puede reducir   los niveles de hs-PCR e IL-6. Marcaccini   y colaboradores encontraron concentraciones   plasm&aacute;ticas de IL-6 en el grupo control (n=20)   de 0,25 pg/ml (0,25-0,49 pg/ml) antes del tratamiento   y 0,35 pg/ml (0,25-1,8 pg/ml) tres meses   despu&eacute;s del tratamiento. En el grupo experimental   (n=25) con periodontitis fueron de 3,3  pg/ml (0,25-41,2 pg/ml) al inicio del estudio y 0,25 pg/ml (0,25-21,5 pg/ml) al final del tratamiento. La hs-PCR inicialmente tuvo un promedio de1,2 mg/l y de 0,9 mg/l en el grupo experimental y control, respectivamente (valor p &gt;0,05). Hubo una disminuci&oacute;n mayor del 50 % en las concentraciones de IL-6 y hs-CRP en el grupo experimental a los tres meses despu&eacute;s de la terapia (23).</font></p>     <p><font size="2" face="Verdana"> El ligando CD40 tambi&eacute;n puede estar aumentado   en pacientes con periodontitis, sin embargo,   no disminuy&oacute; a los tres meses despu&eacute;s del   tratamiento. Las concentraciones de MCP-1, sPselectin,   sVCAM-1 y sICAM-1 se comportaron   igual. Todos los par&aacute;metros cl&iacute;nicos periodontales   (profundidad de bolsa, sangrado al sondaje)   mejoraron despu&eacute;s de la terapia periodontal,   s&oacute;lo la IL-6 mostr&oacute; una correlaci&oacute;n positiva con   la enfermedad y el n&uacute;mero de sitios con profundidad   al sondaje mayor de 4 mm. Los resultados   sugieren que el aumento de IL-6 y PCR puede   ser causado en algunos casos por inflamaci&oacute;n   periodontal (23).   </font></p>     <p><font size="2" face="Verdana">Un estudio de D'Aiuto y colaboradores indica   que la terapia periodontal de raspado y alisado   radicular puede reducir significativamente   la PCR y los niveles s&eacute;ricos de IL-6. Al evaluar   94 sujetos tratados con periodontitis severa   generalizada, se observ&oacute; una reducci&oacute;n significativa   (p &lt;0,0001) de IL-6 s&eacute;rica (0,2 ng/l,   IC 95 % 0,1-0,4 ng/) y PCR (0,5 mgng/l, IC 95 %   0,4 -0,7,) seis meses despu&eacute;s del tratamiento.   Aunque la reducci&oacute;n promedio de la PCR con la   terapia periodontal fue modesta, los pacientes   que tuvieron una mejor respuesta a la terapia   periodontal tambi&eacute;n tuvieron una tendencia a   disminuir de categor&iacute;a de riesgo cardiovascular   basadas &uacute;nicamente en los valores de PCR   (OR 4,8, IC 95 %: 1,4-15,8) presentados en el   Cuadro 1, sin tener en cuenta las estimaciones   de riesgo cl&aacute;sicas (fumar, diabetes, obesidad,   hiperlipidemia, hipertensi&oacute;n, edad y g&eacute;nero),   y al ajustar variables como edad, sexo, origen   &eacute;tnico y h&aacute;bito de fumar. A mayor extensi&oacute;n y   severidad de la periodontitis hubo mayor tendencia a una PCR elevada (OR 5,6; IC 95 % 1,2-27,4) (35,45).</font></p>     <p><font size="2" face="Verdana"> Estudios posteriores confirman estos hallazgos   con terapia antibi&oacute;tica local (microesferas de   tetraciclina) adjunta a la terapia mec&aacute;nica, adem&aacute;s   reportan disminuci&oacute;n en colesterol total y   de baja densidad, y en el conteo de leucocitos   (45,46).   </font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana">La disfunci&oacute;n endotelial es un evento temprano   en la ateroesclerosis antes de que la evidencia   anat&oacute;mica aparezca. La dilataci&oacute;n mediada por   flujo (DMF) de la arteria braquial es un m&eacute;todo   no invasivo para evaluar la funci&oacute;n endotelial   (39,47). Se ha reportado un deterioro funcional   de la arteria braquial en pacientes con enfermedad   periodontal, en ausencia de alteraciones estructurales   de la pared vascular (20,39).</font></p>     <p><font size="2" face="Verdana"> Seinost y colaboradores evaluaron la funci&oacute;n endotelial   en 30 sujetos con periodontitis severa y   31 sujetos control por medio de DMF en arteria   braquial. Se realiz&oacute; tratamiento periodontal no   quir&uacute;rgico, enjuagues con gluconato de clorhexidina   al 0,1% y administraci&oacute;n de antibi&oacute;ticos   sist&eacute;micos (amoxicilina + &aacute;cido clavul&aacute;nico +   metronidazol). Se encontr&oacute; una reducci&oacute;n en la   carga bacteriana y mayor dilataci&oacute;n de las paredes   vasculares en el grupo experimental, regresando   a valores comparables al grupo control. No   est&aacute; claro si el efecto sobre la funci&oacute;n endotelial y   la PCR en realidad se debi&oacute; al tratamiento periodontal   mec&aacute;nico o farmacol&oacute;gico (20).</font></p>     <p><font size="2" face="Verdana"> El grupo de Tonetti estudi&oacute; en 120 sujetos con   periodontitis severa el efecto en la DMF del tratamiento   periodontal. Se administr&oacute; un tratamiento   intensivo (alisado radicular, extracciones   mandatorias y microesferas de minociclina) al   grupo experimental (n=61), mientras que el grupo   control recibi&oacute; tratamiento en la comunidad   (n=59). Encuentran mayor DMF en el grupo de   experimentaci&oacute;n luego de 60 d&iacute;as (40). Mercanoglu   reporta hallazgos similares y concluye que   la funci&oacute;n endotelial en pacientes con periodontitis se encuentra alterada pero se recupera despu&eacute;s de la terapia periodontal (39). </font></p>     <p><font size="2" face="Verdana">Aunque muchos estudios han demostrado una   reducci&oacute;n en uno o m&aacute;s marcadores despu&eacute;s   de la terapia periodontal (20,39,40,45,46), varios   ensayos no han mostrado ning&uacute;n efecto   (48,49). Ide y colaboradores tomaron 39 sujetos   con periodontitis cr&oacute;nica moderada a severa y   no fumadores, se les realiz&oacute; tratamiento no quir&uacute;rgico,   tras seis semanas se evaluaron par&aacute;metros   cl&iacute;nicos e inflamatorios. Encontraron que la   terapia no influy&oacute; en los niveles circulantes de   PCR s&eacute;rica, fibrin&oacute;geno, IL-1B, IL-6, TNF-&alpha; o &alpha;-   amiloide-A. Estos hallazgos sugieren que el solo   tratamiento periodontal puede ser insuficiente   para reducir el riesgo de ECV (48).   </font></p>     <p><font size="2" face="Verdana">Offenbacher y colaboradores realizaron un ensayo   cl&iacute;nico denominado Periodontitis y eventos   vasculares (PAVE). Para ello, tomaron 303 sujetos   con periodontitis e historia de ECV, quienes   fueron aleatorizados a un grupo de intervenci&oacute;n   periodontal (n=151) que consisti&oacute; en raspado y   alisado radicular en boca completa, y a un grupo   control tratado en la comunidad (n=152).   Usando an&aacute;lisis por intenci&oacute;n de tratar no hubo   un efecto significativo en los niveles de hs-PCR   s&eacute;rica ni en IL-1B en fluido crevicular (producido   en el surco gingival) en el primer grupo comparado   con el control. Sin embargo en la discusi&oacute;n   se plantea que la obesidad pudo mantener los   niveles de hs-PCR altos por lo que la terapia periodontal   en esta muestra no tuvo un impacto   en su reducci&oacute;n (49).</font></p>     <p><font size="2" face="Verdana"> Por lo general, en dichos estudios el tratamiento   activo aplicado fue el desbridamiento mec&aacute;nico   profesional en comparaci&oacute;n con un grupo control   que recibi&oacute; el tratamiento al final del estudio   despu&eacute;s de la medici&oacute;n de los resultados.   El tratamiento incluy&oacute; cirug&iacute;a periodontal o la   administraci&oacute;n local o sist&eacute;mica de antibi&oacute;ticos.   En algunos casos el grupo control fue de pacientes   periodontales no tratados o pacientes que   recibieron atenci&oacute;n en la comunidad (50).  	</font></p>       <p><font size="3" face="Verdana"><b>COMENTARIOS FINALES</b></font></p>     <p><font size="2" face="Verdana">La opini&oacute;n actual, aunque basada en datos de diversa calidad, parece estar a favor de una asociaci&oacute;n leve a moderada entre la enfermedad periodontal y un mayor riesgo cardiovascular, pero se sugiere investigar m&aacute;s acerca de c&oacute;mo la enfermedad periodontal de forma independiente pudiera llegar a contribuir en la patog&eacute;nesis de la ateroesclerosis.</font></p>     <p><font size="2" face="Verdana"> El consenso del Sexto Taller Europeo de Periodoncia   sugiere poner especial &eacute;nfasis en la plausibilidad   biol&oacute;gica de la relaci&oacute;n y en los efectos que tienen   las diferentes intervenciones periodontales   sobre los marcadores de riesgo cardiovascular   (5). Para evaluar la causalidad de la relaci&oacute;n se   requieren estudios de larga duraci&oacute;n, muy costosos   y controlados, y estudios de intervenci&oacute;n   para responder por qu&eacute; la terapia periodontal   podr&iacute;a considerarse como un potencial tratamiento   cardioprotector (15,24,50-52).   </font></p>     <p><font size="2" face="Verdana">Los resultados de estos estudios deben interpretarse   con cautela: existen diferentes definiciones   de enfermedad periodontal, adem&aacute;s el   comportamiento puede ser diferente en casos   de gingivitis o periodontitits o de acuerdo a la   extensi&oacute;n y la severidad de la enfermedad; adem&aacute;s,   el tama&ntilde;o de la muestra en la mayor&iacute;a de   los estudios puede ser insuficiente para detectar   los efectos del tratamiento.   </font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana">Se sugiere realizar estudios en pacientes que   ya hayan presentado un evento cardiovascular   previo y evaluar la probabilidad de la disminuci&oacute;n   de eventos posteriores. La duraci&oacute;n de los   estudios puede ser muy breve para observar   resultados significativos. De hecho, el proceso   de la aterosclerosis a menudo toma a&ntilde;os en su   desarrollo. Tal vez un tratamiento periodontal a   corto plazo podr&iacute;a no tener un efecto apreciable   en eventos de largo plazo (50). La falta de un tratamiento   periodontal est&aacute;ndar aceptado representa   una heterogeneidad considerable en los resultados de los diferentes estudios. La definici&oacute;n o el punto de corte de &eacute;xito del tratamiento no han sido bien establecidos.</font></p>     <p><font size="2" face="Verdana"> La utilizaci&oacute;n cl&iacute;nica de la PCR como herramienta   de predicci&oacute;n de futuro riesgo cardiovascular,   todav&iacute;a se considera opcional. Ensayos cl&iacute;nicos   controlados aleatorizados en la prevenci&oacute;n primaria   (personas sanas) y secundaria (pacientes   que sufren de enfermedad cardiovascular) est&aacute;n   tratando de demostrar la verdadera utilidad de   este marcador (35).   </font></p>     <p><font size="2" face="Verdana">Es fundamental hacer &eacute;nfasis en que a&uacute;n no se   han llevado a cabo grandes estudios aleatorizados,   multic&eacute;ntricos y controlados para demostrar   definitivamente los beneficios potenciales   de la terapia periodontal para reducir los   niveles de PCR, o lo que es m&aacute;s importante, si   los tratamientos periodontales reducen el riesgo   cardiovascular global. Algo alentador desde   una perspectiva de salud es que la enfermedad   periodontal representa un factor de riesgo potencialmente   modificable que es prevenible y   tratable con terapias predecibles que suponen   un riesgo insignificante. Teniendo en cuenta que   por lo menos la terapia periodontal mejorar&iacute;a la   salud oral, se puede sugerir que se constituya   como un componente integral de la cardiolog&iacute;a   preventiva (15,50).</font></p>     <p><font size="2" face="Verdana"> En conclusi&oacute;n, aunque existe controversia y falta   de evidencia m&aacute;s contundente acerca del papel   del tratamiento periodontal en el control de los   marcadores de riesgo cardiovasculares, se recomienda   dentro de las modificaciones del estilo de   vida de los pacientes realizar tratamientos preventivos   y correctivos de la enfermedad periodontal.</font></p>      <p><font size="2" face="Verdana"><b>Conflicto de intereses</b></font></p>     <p><font size="2" face="Verdana"> Los autores no tienen ning&uacute;n conflicto de inter&eacute;s   con respecto a la relaci&oacute;n entre enfermedad   periodontal y cardiovascular. Esta revisi&oacute;n hace   parte de los requisitos de grado para optar al   t&iacute;tulo de periodoncista de uno de los participantes   en la revisi&oacute;n.   El uso de un m&eacute;todo sistem&aacute;tico y ordenado de   b&uacute;squeda ayud&oacute; a limitar el riesgo de evidencia   no revisada, aunque la intenci&oacute;n de esta revisi&oacute;n   no era realizar metan&aacute;lisis de los hallazgos.</font></p>       <p><b><font face="verdana" size="3">REFERENCIAS</font></b></p> <font size="2" face="Verdana">     <!-- ref --><p>1. Friedewald VE, Kornman KS, Beck JD, Genco R, Goldfine A, Libby P, et al. The American Journal of Cardiology and Journal of Periodontology Editors' Consensus: periodontitis and atherosclerotic cardiovascular disease. Am. J. 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<body><![CDATA[<p> Forma de citar: Colonia-Garc&iacute;a A, Duque-Duque A. Eficacia del tratamiento de la enfermedad periodontal sobre marcadores de riesgo cardiovascular. Rev Ces Med 2011; 25(2):181-192</p> </FONT>      ]]></body><back>
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