<?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>0120-5633</journal-id>
<journal-title><![CDATA[Revista Colombiana de Cardiología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Colomb. Cardiol.]]></abbrev-journal-title>
<issn>0120-5633</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Colombiana de Cardiologia. Oficina de Publicaciones]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-56332009000600006</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Hematoma espontáneo del instestino delgado: Reporte de dos casos y revisión de la literatura]]></article-title>
<article-title xml:lang="en"><![CDATA[Spontaneous small-bowel hematoma: Report of two cases and literature review]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cadavid]]></surname>
<given-names><![CDATA[Ana M]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Uribe]]></surname>
<given-names><![CDATA[Juan D]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mesa]]></surname>
<given-names><![CDATA[Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Escobar]]></surname>
<given-names><![CDATA[Sandra]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[Luisa F]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Clínica Cardiovascular Santa María  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2009</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2009</year>
</pub-date>
<volume>16</volume>
<numero>6</numero>
<fpage>261</fpage>
<lpage>265</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-56332009000600006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-56332009000600006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-56332009000600006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[El hematoma intramural del yeyuno es una complicación poco frecuente en los pacientes anticoagulados y puede llegar a ser un reto diagnóstico para el médico. Su presentación varía desde dolor abdominal leve y obstrucción intestinal hasta perforación de una víscera hueca. El tratamiento es médico y no se requiere intervención quirúrgica, excepto en los casos de perforación. Se presenta el caso de dos pacientes que desarrollaron dicha patología como complicación al uso de warfarina, quienes tuvieron un buen desenlace clínico y fueron tratados en forma médica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Spontaneous intramural small-bowel hematoma is a rare complication in patients receiving anticoagulation therapy and may represent a diagnostic challenge. Its clinical presentation varies from mild abdominal pain and intestinal obstruction to perforation. Medical treatment is indicated and surgery is required only in cases of perforation. We present the cases of two patients who developed intramural spontaneous small-bowel hematoma as a complication of warfarin therapy and who had a good outcome after medical treatment.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[hematoma intramural]]></kwd>
<kwd lng="es"><![CDATA[intestino delgado]]></kwd>
<kwd lng="es"><![CDATA[dolor abdominal]]></kwd>
<kwd lng="es"><![CDATA[warfarina]]></kwd>
<kwd lng="en"><![CDATA[intramural hematoma]]></kwd>
<kwd lng="en"><![CDATA[small bowel]]></kwd>
<kwd lng="en"><![CDATA[abdominal pain]]></kwd>
<kwd lng="en"><![CDATA[warfarin]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  <font size="2" face="Verdana">      <p>       <center>     <font size="4"><strong>Hematoma espont&aacute;neo del instestino delgado.      Reporte de dos casos y revisi&oacute;n de la literatura</strong></font>   </center> </p>     <p>       <center>     <font size="3"><strong>Spontaneous small-bowel hematoma. Report of two cases      and literature review</strong></font>   </center> </p>     <p>       <center>     Ana M. Cadavid, MD.; Juan D. Uribe, MD.; Miguel Mesa, MD.; Sandra Escobar;      Luisa F. S&aacute;nchez,   </center> </p>     <p>Cl&iacute;nica Cardiovascular Santa Mar&iacute;a, Calle 78 B No. 75 - 21, Medell&iacute;n,    Colombia.</p>     <p> Correspondencia: Dra. Ana Mar&iacute;a Cadavid. Calle 18 B No. 37 - 54. Edificio    Saint Giorgio. Tel&eacute;fono: 312 84 37 701, 3 21 03 73. Medell&iacute;n,    Colombia.</p>     <p> Recibido: 24/02/2009. Aceptado: 26/10/2009.</p> <hr size="1">     ]]></body>
<body><![CDATA[<p>El hematoma intramural del yeyuno es una complicaci&oacute;n poco frecuente    en los pacientes anticoagulados y puede llegar a ser un reto diagn&oacute;stico    para el m&eacute;dico. Su presentaci&oacute;n var&iacute;a desde dolor abdominal    leve y obstrucci&oacute;n intestinal hasta perforaci&oacute;n de una v&iacute;scera    hueca. El tratamiento es m&eacute;dico y no se requiere intervenci&oacute;n    quir&uacute;rgica, excepto en los casos de perforaci&oacute;n. </p>     <p>Se presenta el caso de dos pacientes que desarrollaron dicha patolog&iacute;a    como complicaci&oacute;n al uso de warfarina, quienes tuvieron un buen desenlace    cl&iacute;nico y fueron tratados en forma m&eacute;dica.</p>     <p>Palabras clave: hematoma intramural, intestino delgado, dolor abdominal, warfarina.</p> <hr size="1">     <p>Spontaneous intramural small-bowel hematoma is a rare complication in patients    receiving anticoagulation therapy and may represent a diagnostic challenge.    Its clinical presentation varies from mild abdominal pain and intestinal obstruction    to perforation. Medical treatment is indicated and surgery is required only    in cases of perforation.</p>     <p>We present the cases of two patients who developed intramural spontaneous small-bowel    hematoma as a complication of warfarin therapy and who had a good outcome after    medical treatment.</p>     <p>Key words: intramural hematoma, small bowel, abdominal pain, warfarin.</p> <hr size="1">     <p><font size="3"><strong>Introducci&oacute;n</strong></font></p>     <p>Aproximadamente 5% a 10% de las consultas a urgencias se deben a dolor abdominal;    de &eacute;stas 25% requiere hospitalizaci&oacute;n o cirug&iacute;a y cerca    de 40% no tiene un origen claro en la evaluaci&oacute;n inicial. Durante la    atenci&oacute;n inicial es vital determinar qu&eacute; pacientes requieren tratamiento    quir&uacute;rgico por patolog&iacute;as que lo ameritan y cu&aacute;les tienen    una obstrucci&oacute;n intestinal. El tratamiento quir&uacute;rgico puede ser    terap&eacute;utico y diagn&oacute;stico, pero en algunos casos es necesario    definir qu&eacute; grupo de pacientes tiene mejor evoluci&oacute;n con el tratamiento    conservador. El objetivo de este art&iacute;culo es ilustrar c&oacute;mo el    hematoma mural del intestino delgado es un diagn&oacute;stico diferencial en    aquellos pacientes anticoagulados que cursan con obstrucci&oacute;n intestinal.  </p>     <p>Se reporta el caso de dos pacientes atendidos en la cl&iacute;nica Cardiovascular    Santa Mar&iacute;a y en la Cl&iacute;nica Universitaria Bolivariana, y se realiza    una revisi&oacute;n de la literatura. </p>     <p><font size="3"><strong>Caso uno</strong></font></p>     ]]></body>
<body><![CDATA[<p>Paciente de g&eacute;nero masculino, de 72 a&ntilde;os de edad, con antecedente    de estenosis mitral grave, anticoagulado con warfarina por fibrilaci&oacute;n    auricular, sin antecedentes de sangrado. Ingresa por urgencias con sospecha    de hematoma muscular en la pierna derecha en el contexto de sobreanticoagulaci&oacute;n,    con tiempo de protrombina (TP) mayor de 120 segundos. Se inicia vitamina K y    plasma fresco congelado para revertir la anticoagulaci&oacute;n; se descarta    el hematoma muscular por ecograf&iacute;a y se inicia tratamiento con oxacilina    por sospecha de celulitis. </p>     <p>Al d&iacute;a siguiente presenta abdomen agudo, v&oacute;mito y dolor abdominal    intenso; se realiza tomograf&iacute;a computarizada de abdomen que reporta engrosamiento    de un asa del yeyuno con edema de la submucosa, realce de la mucosa e ingurgitaci&oacute;n    de los vasos mesent&eacute;ricos y estriaci&oacute;n de la grasa mesent&eacute;rica.    As&iacute; mismo, se observa peque&ntilde;a cantidad de l&iacute;quido a su    alrededor. No hay evidencia de perforaci&oacute;n, sin l&iacute;quido libre    en la cavidad abdominal (<a href="#figura1">Figura 1</a>). Con diagn&oacute;stico    de hematoma mural del yeyuno, se inicia manejo m&eacute;dico con reposo gastrointestinal,    tratamiento antibi&oacute;tico con sulbactam/ampicilina 12 gramos al d&iacute;a,    reversi&oacute;n de la anticoagulaci&oacute;n nuevamente con vitamina K y plasma    fresco congelado por persistir con INR mayor a 10. </p>     <p>    <center><a name="figura1"></a>    <br>   <img src="img/revistas/rcca/v16n6/a6f1.jpg"></center></p>     <p>Durante la estancia en la unidad de cuidados intensivos presenta falla respiratoria    secundaria a neumon&iacute;a del l&oacute;bulo inferior derecho por broncoaspiraci&oacute;n    y edema pulmonar sin indicaci&oacute;n para intubaci&oacute;n orotraqueal o    soporte ventilatorio, los cuales fueron confirmados por tomograf&iacute;a y    cambios electrocardiogr&aacute;ficos inespec&iacute;ficos en la repolarizaci&oacute;n.    Se confirma doble lesi&oacute;n mitral con dilataci&oacute;n severa de la aur&iacute;cula    izquierda por ecocardiograf&iacute;a transtor&aacute;cica. La ecocardiograf&iacute;a    transesof&aacute;gica evidencia placas ateromatosas a&oacute;rticas irregulares    y nichos ulcerosos, contraste espont&aacute;neo y remolinos en la aur&iacute;cula    izquierda. Adem&aacute;s present&oacute; falla renal aguda no asociada a la    aplicaci&oacute;n de medio de contraste para la tomograf&iacute;a, la cual se    resolvi&oacute; espont&aacute;neamente. Una semana despu&eacute;s se realiz&oacute;    control tomogr&aacute;fico que demostr&oacute; la resoluci&oacute;n de los hallazgos    compatibles con hematoma intramural de intestino delgado.</p>     <p>    <center><a name="figura2"></a>    <br>   <img src="img/revistas/rcca/v16n6/a6f2.jpg"></center></p>     <p>Fue dado de alta con anticoagulaci&oacute;n oral, con meta de INR en niveles    bajos por alto riesgo emb&oacute;lico secundario a la fibrilaci&oacute;n atrial    y los cambios en la aorta. </p>     ]]></body>
<body><![CDATA[<p><font size="3"><strong>Caso dos</strong></font></p>     <p>Paciente de g&eacute;nero femenino, de 78 a&ntilde;os, con antecedente de enfermedad    cerebro-vascular hemorr&aacute;gica en fosa posterior, anticoagulada con warfarina;    adem&aacute;s con diagn&oacute;stico de diabetes mellitus tipo 2, hipertensi&oacute;n    arterial no controlada e hipotiroidismo. </p>     <p>Consulta al servicio de urgencias por cuadro cl&iacute;nico de 48 horas de    evoluci&oacute;n de dolor abdominal y v&oacute;mito porr&aacute;ceo sin otros    s&iacute;ntomas. Al examen f&iacute;sico no se evidencian signos de irritaci&oacute;n    peritoneal. El INR inicial es de 15,2.</p>     <p>La impresi&oacute;n diagn&oacute;stica inicial es hemorragia del tracto digestivo    superior secundario a sobreanticoagulaci&oacute;n. Se transfunde con plasma    fresco congelado y se administra vitamina K. Adicionalmente se suspende la v&iacute;a    oral y se descomprime el tracto gastrointestinal con sonda nasog&aacute;strica.</p>     <p>La evoluci&oacute;n de la paciente es t&oacute;rpida; presenta hipotensi&oacute;n,    palidez y rectorragia, con ca&iacute;da de 6,7 g de hemoglobina en menos de    doce horas, por lo cual requiere transfusi&oacute;n de gl&oacute;bulos rojos    empacados.</p>     <p>Se realiza endoscopia del tracto digestivo superior la cual descarta alg&uacute;n    sitio de sangrado. La tomograf&iacute;a computarizada de abdomen simple y contrastado    muestra engrosamiento de asas intestinales de yeyuno en toda la extensi&oacute;n    que compromete hasta la regi&oacute;n del &iacute;leo distal de manera conc&eacute;ntrica    sin observarse patr&oacute;n de obstrucci&oacute;n o suboclusi&oacute;n (<a href="#figura3">Figura    3</a>).</p>     <p>    <center><a name="figura3"></a>    <br>   <img src="img/revistas/rcca/v16n6/a6f3.jpg"></center></p>     <p>Con diagn&oacute;stico de hematoma intramural del yeyuno, se decide manejo    conservador. La evoluci&oacute;n de la paciente es adecuada, pudi&eacute;ndose    revertir la anticoagulaci&oacute;n, retirar sonda nasog&aacute;strica e iniciar    v&iacute;a oral. La tomograf&iacute;a de control muestra gran mejor&iacute;a    de su cuadro con disminuci&oacute;n significativa del engrosamiento y la extensi&oacute;n    del hematoma (<a href="#figura4">Figura 4</a>).</p>     ]]></body>
<body><![CDATA[<p>    <center><a name="figura4"></a>    <br>   <img src="img/revistas/rcca/v16n6/a6f4.jpg"></center></p>     <p>Se define paciente no candidata a continuar su anticoagulaci&oacute;n y es    dada de alta, con evoluci&oacute;n adecuada hasta la fecha.</p>     <p><font size="3"><strong>Discusi&oacute;n</strong></font></p>     <p>La tr&iacute;ada de sobreanticoagulaci&oacute;n con warfarina, engrosamiento    circunferencial de la pared del intestino delgado y obstrucci&oacute;n intestinal    es caracter&iacute;stica de hematoma intramural del intestino delgado (1). </p>     <p>El primer reporte de hematoma intramural intestinal fue descrito por McLouchlan    en 1838 (2); la primera descripci&oacute;n radiol&oacute;gica fue hecha por    Liverud (2). En 1904, Sutherland (3) report&oacute; un caso de hematoma traum&aacute;tico    en un ni&ntilde;o con p&uacute;rpura de Henoch-Sch&ouml;nlein con intususcepci&oacute;n.    Cuatro a&ntilde;os despu&eacute;s, Von-Khautz (4) diagnostic&oacute; esta misma    condici&oacute;n en un paciente con hemofilia (5). Posterior a estos reportes,    su incidencia y publicaci&oacute;n va en aumento, secundario al uso de warfarina,    siendo este el principal factor de riesgo (6).</p>     <p>Dicha complicaci&oacute;n se presenta en trauma cerrado de abdomen, especialmente    en ni&ntilde;os (2, 7). En pacientes anticoagulados afecta a 1:2.500 pacientes    al a&ntilde;o y es la causa espont&aacute;nea m&aacute;s frecuente (8, 9). Su    incidencia es mayor en hombres, con una media de 57,6 a&ntilde;os (32-78 a&ntilde;os)    (10). </p>     <p>Es com&uacute;n que no se sospeche y se realice el diagn&oacute;stico durante    la laparotom&iacute;a exploratoria en pacientes con obstrucci&oacute;n intestinal    (40% de los casos) (11). El diagn&oacute;stico se basa en la sospecha cl&iacute;nica    y los hallazgos tomogr&aacute;ficos y se confirma con la desaparici&oacute;n    de los hallazgos tomogr&aacute;ficos en controles (12). </p>     <p>La cl&iacute;nica var&iacute;a entre dolor abdominal, obstrucci&oacute;n intestinal    (si hay compromiso de yeyuno, &iacute;leon y v&aacute;lvula &iacute;leo-cecal)    y obstrucci&oacute;n biliar (13, 14). El dolor abdominal es el s&iacute;ntoma    caracter&iacute;stico (&uacute;nico s&iacute;ntoma en 20% de los pacientes),    con n&aacute;useas en la mitad de los casos y v&oacute;mito en 40% de ellos.    La incidencia de hemorragia del tracto digestivo asociada es de 42,4% (10) y    la duraci&oacute;n promedio de los s&iacute;ntomas es de cuatro d&iacute;as    (rango: 1 a 22 d&iacute;as) (15-18).</p>     ]]></body>
<body><![CDATA[<p>La hemorragia se localiza en la submucosa y se origina de un vaso peque&ntilde;o    que produce sangrado (18-23). Adicional al sangrado intramural, puede haber    sangrado intramesent&eacute;rico, intraluminal y retroperitoneal, en especial    cuando hay compromiso del duodeno (4, 16, 24, 25).</p>     <p>En 92% de los casos el diagn&oacute;stico puede hacerse por medio de tomograf&iacute;a    de abdomen sola o asociada a otros m&eacute;todos (10, 26). Inicialmente debe    realizarse sin contraste ya que &eacute;ste enmascara la presencia de hemorragia    intramural. Compromete com&uacute;nmente el yeyuno (4, 6, 27-34) seguido del    &iacute;leon y finalmente el duodeno. La interpretaci&oacute;n del engrosamiento    mucoso debe diferenciarse de enfermedades inflamatorias, infecciosas y neopl&aacute;sicas,    lo mismo que de lesiones isqu&eacute;micas (6). La resoluci&oacute;n tomogr&aacute;fica    puede darse tan tempranamente como una semana (1, 35).</p>     <p>El tratamiento es m&eacute;dico con suspensi&oacute;n inmediata del anticoagulante    y reversi&oacute;n de su efecto, suspensi&oacute;n de la v&iacute;a oral (en    ocasiones es necesaria la nutrici&oacute;n parenteral) y la correcci&oacute;n    de desequilibrios hidroelectrol&iacute;ticos (36). La laparotom&iacute;a exploratoria    terap&eacute;utica con frecuencia es innecesaria (9, 30, 37, 38).</p>     <p>La recurrencia es escasa incluso en aquellos pacientes que requieren reinicio    de terapia anticoagulante y que mantienen el rango terap&eacute;utico adecuado    (39, 40).</p>     <p>La apariencia ecogr&aacute;fica comprende engrosamiento y visualizaci&oacute;n    de una capa submucosa (33, 41-43); sin embargo, estos hallazgos pueden observarse    en gran cantidad de patolog&iacute;as (44). La combinaci&oacute;n de tomograf&iacute;a    y ultrasonido ofrece una exactitud de 100%, la cual demostraron Polat y colaboradores    en 2003 (45).</p>     <p><font size="3"><strong>Conclusiones</strong></font></p>     <p>El hematoma intramural del yeyuno es una patolog&iacute;a poco frecuente en    nuestro medio. A medida que aumenta el uso de warfarina para el tratamiento    de patolog&iacute;as cardiovasculares, puede incrementarse su incidencia. </p>     <p>La sospecha cl&iacute;nica es importante para evitar procedimientos invasivos    innecesarios. La tomograf&iacute;a computarizada puede aclarar el diagn&oacute;stico    en la mayor&iacute;a de los casos.</p>     <p>La recomendaci&oacute;n actual para su manejo es m&eacute;dica. La suspensi&oacute;n    inmediata del medicamento anticoagulante, la normalizaci&oacute;n de las pruebas    de coagulaci&oacute;n, el cuidado del balance hidroelectrolitico y la suspensi&oacute;n    de la v&iacute;a oral pueden ser suficientes.</p>     <p><font size="3"><strong>Bibliograf&iacute;a</strong></font></p>     ]]></body>
<body><![CDATA[<!-- ref --><p>1. Abbas MA, Collins JM, Olden KW. Spontaneous intramural small-bowel hematoma:    imaging findings and outcome. AJR 2002; 179: 1389-1394.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000063&pid=S0120-5633200900060000600001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p>2. McLauchlan J. False aneurysmal tumour occupying nearly the whole of the    duodenum. Lancet. 1838; 2: 203-205.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000064&pid=S0120-5633200900060000600002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p>3. Sutherland GA. Intussusception and Henoch&#8217;s purpura. 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