<?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>0212-7199</journal-id>
<journal-title><![CDATA[Anales de Medicina Interna]]></journal-title>
<abbrev-journal-title><![CDATA[An. Med. Interna (Madrid)]]></abbrev-journal-title>
<issn>0212-7199</issn>
<publisher>
<publisher-name><![CDATA[Arán Ediciones, S. L.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0212-71992005000700006</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Taponamiento cardiaco por quiste hidatídico pericárdico]]></article-title>
<article-title xml:lang="en"><![CDATA[Cardiac tamponade caused by hydatid pericarditis]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solano Remírez]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Urbieta Echezarreta]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez Frías]]></surname>
<given-names><![CDATA[M. T.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Arencibia]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Llorente Díaz]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Hospital de Navarra Servicio de Medicina Interna ]]></institution>
<addr-line><![CDATA[Pamplona ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>07</month>
<year>2005</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>07</month>
<year>2005</year>
</pub-date>
<volume>22</volume>
<numero>7</numero>
<fpage>326</fpage>
<lpage>328</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S0212-71992005000700006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S0212-71992005000700006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S0212-71992005000700006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Presentamos el caso de una mujer sin antecedentes personales de interés que debuta con insuficiencia cardiaca con clínica de taponamiento cardiaco por pericarditis hidatídica secundaria a fistulización a traves del diafragma por rotura de quista hidatídico localizado en hígado. La hidatidosis cardiaca es poco frecuente presentado una incidencia según series entre el 0,2-2% sobre el total de infestación en humanos por Echinococcus, siendo la afectación pericárdica infrecuente. Es por ello que realizamos revisión de su etiopatogenia, presentación clínica, diagnósticos de elección y tratamientos recomendados.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[We present the case of a woman with no previous clinical history of disease, that debuted with acute heart failure with symptoms of cardiac tamponade from hydatic pericarditis as a result of a fistula across the diaphragm secondary to a hidatidic cyst rupture in the liver. Cardiac hydatidosis is rare with an incidence in some series betweem 0.2-2% in humans infested with Echinococcus, affectation of the pericardia being rare. For this reason we present a revision of its pathogenesis, clinical presentation, diagnosis and recommended treatment]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Echinococcus]]></kwd>
<kwd lng="es"><![CDATA[Pericarditis]]></kwd>
<kwd lng="es"><![CDATA[Taponamiento pericárdico]]></kwd>
<kwd lng="es"><![CDATA[Albendazol]]></kwd>
<kwd lng="es"><![CDATA[Periquistectomía]]></kwd>
<kwd lng="en"><![CDATA[Echinococcus]]></kwd>
<kwd lng="en"><![CDATA[Pericarditis]]></kwd>
<kwd lng="en"><![CDATA[Pericardial tamponade]]></kwd>
<kwd lng="en"><![CDATA[Albendazol]]></kwd>
<kwd lng="en"><![CDATA[Periquistectomy]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p>&nbsp;</p> <table border="0" width="100%">   <tr>     <td width="15%">&nbsp;</td> <td width="85%"><b><font size=5>Taponamiento cardiaco por quiste hidat&iacute;dico peric&aacute;rdico</font></b></p>     <p>M. SOLANO REM&Iacute;REZ, M. A. URBIETA ECHEZARRETA, M. T. &Aacute;LVAREZ FR&Iacute;AS,    <br> C. GONZ&Aacute;LEZ ARENCIBIA, B. LLORENTE D&Iacute;AZ</p>     <p><i>Medicina Interna. Hospital de Navarra. Pamplona</i></p>          <p>&nbsp;</td>   </tr> </table> <table border="0" width="100%">   <tr>     <td width="48%" valign="top">&nbsp;</td>     <td width="4%" valign="top">&nbsp;</td> <td width="48%" valign="top"><i><font size="2">CARDIAC TAMPONADE CAUSED BY HYDATID PERICARDITIS</font></i></p>  	    <p>&nbsp;</td>   </tr>   <tr> <td width="48%" valign="top">      <p>RESUMEN</p>     <p>Presentamos el caso de una mujer sin antecedentes personales de inter&eacute;s que debuta con insuficiencia cardiaca con cl&iacute;nica de taponamiento cardiaco por pericarditis hidat&iacute;dica secundaria a fistulizaci&oacute;n a traves del diafragma por rotura de quista hidat&iacute;dico localizado en h&iacute;gado. La hidatidosis cardiaca es poco frecuente presentado una incidencia seg&uacute;n series entre el 0,2-2% sobre el total de infestaci&oacute;n en humanos por <i>Echinococcus</i>, siendo la afectaci&oacute;n peric&aacute;rdica infrecuente. Es por ello que realizamos revisi&oacute;n de su etiopatogenia, presentaci&oacute;n cl&iacute;nica, diagn&oacute;sticos de elecci&oacute;n y tratamientos recomendados.</p>     <p>PALABRAS CLAVE: <i>Echinococcus</i>. Pericarditis. Taponamiento peric&aacute;rdico. Albendazol. Periquistectom&iacute;a.</p>      </td>     <td width="4%" valign="top">&nbsp;</td> <td width="48%" valign="top">     <p>ABSTRACT</p>     ]]></body>
<body><![CDATA[<p><i>We present the case of a woman with no previous clinical history of disease, that debuted with acute heart failure with symptoms of cardiac tamponade from hydatic pericarditis as a result of a fistula across the diaphragm secondary to a hidatidic cyst rupture in the liver. Cardiac hydatidosis is rare with an incidence in some series betweem 0.2-2% in humans infested with</i> Echinococcus, <i>affectation of the pericardia being rare. For this reason we present a revision of its pathogenesis, clinical presentation, diagnosis and recommended treatment.</i></p>     <p>KEY WORDS: <i>Echinococcus. Pericarditis. Pericardial tamponade. Albendazol. Periquistectomy.</i></p>      </td>   </tr> </table>     <p><i>Solano Rem&iacute;rez M, Urbieta Echezarreta MA, &Aacute;lvarez Fr&iacute;as MT, Gonz&aacute;lez Arencibia C, Llorente D&iacute;az B. Taponamiento cardiaco por quiste hidat&iacute;dico peric&aacute;rdico. An Med Interna (Madrid) 2005; 22: 326-328.</i></p>  <hr width="30%" align="left">     <p><font size="2"><i>Trabajo aceptado</i>: 11 de enero de 2005</font></p>      <p><font size="2"><i>Correspondencia</i>: Manuel Solano Remírez. C/ Juan Bosco, 17, 2º izda. 31007 Pamplona</font></p>  <hr>      <p>INTRODUCCI&Oacute;N</p>     <p>La parasitaci&oacute;n por <i>echinococcus</i> tiene una distribuci&oacute;n mundial presentando zonas end&eacute;micas. El reservorio principal lo constituyen los perros y otros animales que se alimentan de v&iacute;sceras infestadas de animales muertos. La afectaci&oacute;n humana se realiza por ingesta de huevos que posteriormente invaden la circulaci&oacute;n sangu&iacute;nea infestando diferentes &oacute;rganos siendo los m&aacute;s frecuentemente afectados el h&iacute;gado y el pulm&oacute;n. Los quistes hidat&iacute;dicos cardiacos constituyen el 0,5-2% de todos los quistes hidat&iacute;dicos en humanos. La afectaci&oacute;n peric&aacute;rdica es infrecuente, siendo la causa m&aacute;s frecuente de su afectaci&oacute;n la complicaci&oacute;n por ruptura de quistes hep&aacute;ticos. La cl&iacute;nica por afectaci&oacute;n peric&aacute;rdica m&aacute;s frecuente es la derivada por compresi&oacute;n. El diagn&oacute;stico se realiza por imagen (TAC y/o RMN) y ecocardiograma debi&eacute;ndose realizar diagn&oacute;stico diferencial con tumores cardiacos. El diagn&oacute;stico precoz es importante por el alto riesgo que conlleva dicha patolog&iacute;a. El tratamiento de elecci&oacute;n es quir&uacute;rgico.</p>      <p>CASO APORTADO</p>     <p>Se trata de una mujer de 81 a&ntilde;os sin antecedentes de inter&eacute;s que refiere disnea progresiva hasta hacerse de reposo sin fiebre termometrada, acompa&ntilde;ada de taquipnea importante con uso de musculatura accesoria, ortopnea 3 almohadas, edemas en EEII y dolor tor&aacute;cico tipo opresivo. En la anal&iacute;tica destaca la presencia de leucocitosis 28.800/mm<sup>3</sup> con 3% cayados, pO2 56%, SatO2 84%. En la exploraci&oacute;n cl&iacute;nica ingurgitaci&oacute;n yugular marcada (5 cm), edemas en EEEII hasta rodillas, taquipnea a 28 rpm, crepitantes hasta campos medios, hepatomegalia de 6 cm y tonos r&iacute;tmicos con tonos apagados. En el ECG destaca un pobre voltaje en derivaciones precordiales y S-T elevado de V4-V6 y cara inferior. La imagen de la radiograf&iacute;a de t&oacute;rax refleja cardiomegalia con imagen en bota y pinzamiento costofr&eacute;nico bilateral (<a href="#f2">Fig. 2</a>). Se realiza TAC tor&aacute;cico que demuestra lesi&oacute;n qu&iacute;stica hep&aacute;tica grande localizada en l&oacute;bulo izquierdo con extensi&oacute;n a pericardio (<a href="#f1">Fig. 1</a>). Dada la situaci&oacute;n cl&iacute;nica se ingresa en UCI requiriendo intubaci&oacute;n orotraqueal (IOT) y soporte hemodin&aacute;mico, donde, bajo anestesia local, se realiza incisi&oacute;n en hipocondrio izquierdo dren&aacute;ndose 1.200 cc de material purulento conteniendo membranas hidat&iacute;dicas; as&iacute; mismo se coloca drenaje peric&aacute;rdico obteni&eacute;ndose material de caracter&iacute;sticas hem&aacute;tico-purulentas y ves&iacute;culas. Tras presentar mejor&iacute;a hemodin&aacute;mica y respiratoria posterior se decide intervenci&oacute;n bajo anestesia general realiz&aacute;ndose laparotom&iacute;a, objetiv&aacute;ndose quiste hidat&iacute;dico hep&aacute;tico que destruye diafragma y comunica con pericardio; se realiza ventana subxifoidea y periquistectom&iacute;a subtotal con cierre de bocas v&iacute;as biliares, dej&aacute;ndose drenaje peric&aacute;rdico y 2JP (subfr&eacute;nico y en lecho hep&aacute;tico). La evoluci&oacute;n posterior fue favorable.</p>     <p align="center"><a name="f1"><img src="/img/revistas/ami/v22n7/nc1_fig1.jpg" width="337" height="329"></a></p>    ]]></body>
<body><![CDATA[<br>     <p align="center"><a name="f2"><img src="/img/revistas/ami/v22n7/nc1_fig2.jpg" width="337" height="282"></a></p>    <br>      <p>DISCUSI&Oacute;N</p>     <p>La <i>Echinococcosis</i> es una parasitaci&oacute;n de distribuci&oacute;n mundial (1,2); es end&eacute;mida en Am&eacute;rica del Sur, &Aacute;frica del Norte, Europa meridional, norte y oeste del Canad&aacute;, Australia, Nueva Zelanda y zona del Valle del Misissippi y estado de Alaska en EE.UU. El agente causante es un cestodo de la familia del <i>Echinococcus</i> que parasita sobre todo a perros y otros c&aacute;nidos (lobos, zorros) que constituyen el huesped definitivo y como huesped intermediario algunos herb&iacute;voros (ovejas, vacas, cabras y camellos). Se trasmite al hombre por contacto directo con heces infectadas y por la ingesti&oacute;n de huevos con los alimentos infectados. En el intestino humano los huevos se transforman en embriones u oncospheras, penetrando en la mucosa e incorpor&aacute;ndose a la circulaci&oacute;n sangu&iacute;nea, alcanzando las v&iacute;sceras que sufrir&aacute;n la infestaci&oacute;n, en forma de quistes. El periodo de incubaci&oacute;n es largo. Se observa a cualquier edad con una cierta preferencia para el sexo femenino. Los &oacute;rganos m&aacute;s frecuentemente afectados son el h&iacute;gado (50-79%) y el pulm&oacute;n (20%); otros (10%) como los m&uacute;sculos, huesos, ri&ntilde;ones, cerebro son m&aacute;s infrecuentemente infestados (3); el coraz&oacute;n constituye una infestaci&oacute;n primaria rara, aproximadamente 0.2-2% de todos los casos de hidatidosis (8); siendo el septum intraventricular y el VI las localizaciones primarias cardiacas m&aacute;s frecuentes (4); a&uacute;n es m&aacute;s raro la afectaci&oacute;n del pericardio, constituyendo la equinococcosis una causa rara de afectaci&oacute;n peric&aacute;rdica produciendo taponamiento cardiaco (5). Suelen asociarse a la presencia de quistes extracardiacos (9,11). La mayor&iacute;a de las infecciones por  <i>echinococcus</i> son asintom&aacute;ticas, siendo la cl&iacute;nica m&aacute;s frecuente la derivada de la obstrucci&oacute;n de v&iacute;as o la disfunci&oacute;n del &oacute;rgano afectado; una complicaci&oacute;n grave la constituye la ruptura del quiste y la salida del contenido a la circulaci&oacute;n sangu&iacute;nea pudiendo producir un cuadro grave de anafilaxia.</p>     <p>La causa m&aacute;s frecuente de pericarditis es la rotura a pleura y pericardio de quistes abdominales, sobre todo hep&aacute;ticos, por perforaci&oacute;n diafragm&aacute;tica (9-11). Los s&iacute;ntomas predominantes son los secundarios al taponamiento: disnea, dolor tor&aacute;cico (15,17) El diagnostico se realiza por ecocardiograma (6,7,16) y por t&eacute;cnicas de imagen como la TAC y/o RMN (8,12); anal&iacute;ticamente con Ac espec&iacute;ficos frente a <i>equinococccus</i> mediante ELISA e inmunoblot (sensibilidad del 80-100%), siendo caracter&iacute;stico la presencia de eosinofilia (59% de casos) en sangre perif&eacute;rica. El diagn&oacute;stico diferencial debe realizarse con tumores de origen cardiaco, formaciones qu&iacute;sticas tipo teratomas, quistes cong&eacute;nitos del pericardio, quistes secundarios a hematomas intraperic&aacute;rdicos o degeneraciones qu&iacute;sticas de tumores (16). Es importante conocer si la zona es end&eacute;mica para equinococcosis. Ocasionalmente, como complicaci&oacute;n, puede producirse sobreinfectaci&oacute;n con pericarditis purulenta secundaria.</p>     <p>El tratamiento de elecci&oacute;n es quir&uacute;rgico (13,14,18). Con objeto de disminuir el riesgo de siembra peritoneal en caso de producirse rotura accidental del quiste durante la intervenci&oacute;n quir&uacute;rgica se aconseja administrar antes y despu&eacute;s de la cirug&iacute;a albendazol (10-15 mg/kg) y esterilizando el quiste con soluci&oacute;n de ClNa al 20%; posteriormente se debe continuar tratamiento con albendazol a las mismas dosis (10-15 mg/kg/d&iacute;a) durante 3 meses (seg&uacute;n unos autores descansando una semana de cada cuatro, y seg&uacute;n otros de forma continua) coadministrando, opcionalmente, praziquantel. Se debe realizar profilaxis en &aacute;reas end&eacute;micas mediante tratamiento a los perros con praziquantel 5 mg/kg mensual.</p>     <p>Podemos concluir que, siendo la parasitaci&oacute;n por <i>Echinococcus</i> de distribuci&oacute;n mundial, la afectaci&oacute;n cardiaca es rara y m&aacute;s infrecuente la peric&aacute;rdica. El diagn&oacute;stico diferencial, en zonas end&eacute;micas, debe realizarse con los tumores cardiacos. El diagn&oacute;stico mediante pruebas de imagen resulta sencillo y r&aacute;pido. El tratamiento de elecci&oacute;n es quir&uacute;rgico mediante periquistectom&iacute;a realizando previamente esterilizaci&oacute;n del quiste y con albendazol antes y despu&eacute;s de la intervenci&oacute;n, continuando durante al menos 3 meses asociando, de forma opcional, praziquantel.</p>      <p>&nbsp;</p>     <p><i><font size="4">Bibliograf&iacute;a</font></i></p>     ]]></body>
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