<?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>2078-7170</journal-id>
<journal-title><![CDATA[CorSalud]]></journal-title>
<abbrev-journal-title><![CDATA[CorSalud]]></abbrev-journal-title>
<issn>2078-7170</issn>
<publisher>
<publisher-name><![CDATA[Cardiocentro Ernesto Che Guevara]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2078-71702018000400286</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Predictores de bajo gasto cardíaco perioperatorio en pacientes operados de cirugía cardíaca valvular]]></article-title>
<article-title xml:lang="en"><![CDATA[Predictors of low perioperative cardiac output in patients with heart valve surgery]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernández Mesa]]></surname>
<given-names><![CDATA[José E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Padrón García]]></surname>
<given-names><![CDATA[Kenia M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paredes Cordero]]></surname>
<given-names><![CDATA[Ángel M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz Vázquez]]></surname>
<given-names><![CDATA[Elizabeth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Greck]]></surname>
<given-names><![CDATA[Omar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Trujillo]]></surname>
<given-names><![CDATA[Aníbal]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Provincial Faustino Pérez Hernández Servicio de Cardiología ]]></institution>
<addr-line><![CDATA[Matanzas ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto de Cardiología y Cirugía Cardiovascular Departamento de Medicina Nuclear ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto de Cardiología y Cirugía Cardiovascular Servicio de Cirugía Cardiovascular ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Hospital Provincial Faustino Pérez Hernández Unidad de Terapia Intermedia Polivalente ]]></institution>
<addr-line><![CDATA[Matanzas ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>10</volume>
<numero>4</numero>
<fpage>286</fpage>
<lpage>293</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2078-71702018000400286&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2078-71702018000400286&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2078-71702018000400286&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  El síndrome de bajo gasto cardíaco (BGC) perioperatorio es una complicación frecuente en el postoperatorio de cirugía cardíaca la cual disminuye la supervivencia a corto plazo.  Objetivo:  Determinar las variables que pronostican de manera independiente la incidencia del BGC en el perioperatorio de cirugía cardíaca valvular en el Instituto de Cardiología y Cirugía Cardiovascular, durante el trienio 2012-2014.  Método:  Se realizó un estudio de cohorte donde se conformaron dos grupos: uno con BGC (46 pacientes) y otro sin él (110 pacientes). Se realizó una curva de Kaplan-Meier para determinar la supervivencia a los 30 días de la cirugía, se compararon los grupos con la prueba de rangos logarítmicos (log-rank). Se efectuó un análisis multivariable para determinar las variables que influyeron de manera independiente en la aparición del BGC. El nivel de significación estadístico empleado fue de p&lt;0,05.  Resultados:  La muestra fue homogénea según características clínicas y demográficas. La incidencia y la mortalidad del BGC fueron del 29,5% y 28,3%, respectivamente. La disfunción renal preoperatoria (OR=5,13; p=0,005), el tiempo prolongado de circulación extracorpórea (OR=4,89; p=0,001) y la resistencia vascular pulmonar elevada (OR=7,52; p&lt;0,001) fueron las variables que se asociaron de manera independiente a la aparición de bajo gasto.  Conclusiones:  El BGC reduce significativamente la supervivencia perioperatoria. La disfunción renal preoperatoria, el tiempo prolongado de circulación extracorpórea y la resistencia vascular pulmonar elevada constituyeron variables de peor pronóstico en estos pacientes, asociadas a una mayor probabilidad de sufrir esta complicación.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  The perioperative low cardiac output syndrome (LCOS) is a frequent complication in the postoperative period of cardiac surgery which decreases short-term survival.  Objective:  To determine the variables that independently predict the incidence of LCOS in the perioperative period of heart valve surgery at the Instituto de Cardiología y Cirugía Cardiovascular, during the 2012-2014 triennium.  Method:  A cohort study was conducted where two groups were formed: one with LCOS (46 patients) and the other without it (110 patients). A Kaplan-Meier curve was performed to determine survival 30 days after surgery. The groups were compared with the log-rank test. A multivariate analysis was carried out to determine the variables that independently influenced the appearance of LCOS. The level of statistical significance used was p&lt;0.05.  Results:  The sample was homogeneous according to clinical and demographic characteristics. The incidence and mortality of the LCOS were 29.5% and 28.3%, respectively. Preoperative renal dysfunction (OR=5.13, p=0.005), prolonged extracorporeal circulation time (OR=4.89, p=0.001) and elevated pulmonary vascular resistance (OR=7.52, p&lt;0.001) were the variables independently associated with the appearance of low cardiac output.  Conclusions:  The LCOS significantly reduces perioperative survival. Preoperative renal dysfunction, prolonged extracorporeal circulation and elevated pulmonary vascular resistance were variables of worse prognosis in these patients, associated with a higher probability of suffering this complication.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Bajo gasto cardíaco]]></kwd>
<kwd lng="es"><![CDATA[Cirugía valvular cardíaca]]></kwd>
<kwd lng="es"><![CDATA[Supervivencia perioperatoria]]></kwd>
<kwd lng="es"><![CDATA[Análisis de supervivencia]]></kwd>
<kwd lng="en"><![CDATA[Low cardiac output]]></kwd>
<kwd lng="en"><![CDATA[Heart valve surgery]]></kwd>
<kwd lng="en"><![CDATA[Perioperative survival]]></kwd>
<kwd lng="en"><![CDATA[Survival analysis]]></kwd>
</kwd-group>
</article-meta>
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