<?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>1688-0420</journal-id>
<journal-title><![CDATA[Revista Uruguaya de Cardiología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.Urug.Cardiol.]]></abbrev-journal-title>
<issn>1688-0420</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Uruguaya de Cardiología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1688-04202019000300026</article-id>
<article-id pub-id-type="doi">10.29277/cardio.34.3.6</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Uso de NT-proBNP como predictor de evolución en el posoperatorio de cirugía cardíaca]]></article-title>
<article-title xml:lang="en"><![CDATA[Use of NT-proBNP to predict postoperative evolution in cardiac surgery]]></article-title>
<article-title xml:lang="pt"><![CDATA[Uso do NT-proBNP como preditor de evolução no pós-operatório de cirurgia cardíaca]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lorente]]></surname>
<given-names><![CDATA[Macarena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[Maximiliano]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arocena]]></surname>
<given-names><![CDATA[María José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ríos]]></surname>
<given-names><![CDATA[Facundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernández]]></surname>
<given-names><![CDATA[Amparo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[Eloísa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Zerpa]]></surname>
<given-names><![CDATA[Diego]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cabeza]]></surname>
<given-names><![CDATA[Darío]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Soca]]></surname>
<given-names><![CDATA[Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estigarribia]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Brusich]]></surname>
<given-names><![CDATA[Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dayan]]></surname>
<given-names><![CDATA[Víctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Cirugía Cardíaca  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital de Clínicas Cátedra de Cirugía Cardíaca ]]></institution>
<addr-line><![CDATA[Montevideo ]]></addr-line>
<country>Uruguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>34</volume>
<numero>3</numero>
<fpage>26</fpage>
<lpage>48</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S1688-04202019000300026&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S1688-04202019000300026&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S1688-04202019000300026&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[resumen está disponible en el texto completo]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary:  Introduction: the amino-terminal pro brain-type natriuretic peptide (NT-proBNP) is a diagnostic and prognostic biomarker in heart failure. Its use as a prognosis predictor of postoperative evolution in cardiac surgery has not been established.  Objective: to determine if the value of preoperative NT in cardiac surgery is associated with postoperative evolution parameters. Primary objective: to evaluate its association with the length of stay in intensive care unit. Secondary objectives: to evaluate its association with the time of mechanical ventilation and inotropic agents requirements. To determine the evolution of NT-proBNP concentration after cardiopulmonary bypass.  Methods:  multicentric retrospective study, endorsed by the Research Committee of the National Institute of Cardiac Surgery and the Ethic Research Committee of the Clinic Hospital. It included patients who underwent cardiac surgery between March and August 2018. NT-proBNP was measured during anesthesia induction and after cardiopulmonary bypass. A possible association of preoperative NT-proBNP with risk factors and type of procedure performed was studied. By analysing the ROC curve, the area under curve (AUC) was calculated and then, the best cut-off value of NT-proBNP to predict prolonged intensive care unit stay was determined. Intensive care unit stays, mechanical ventilation and inotropic requirements were defined as prolonged when they exceeded 2 days, 6 and 24 hours respectively. Through the use of multivaried logistics, the predicting value of NT-proBNP was determined for each one of the aforementioned variables. A value of alfa 0.05 was considered significant.  Results: a total of 155 patients were included in the study. Age, creatininemia, and left ventricular ejection fraction were 65.8±11.4 years, 1.15±1.10 mg/dl and 52.8±11.9% respectively. Female prevalence was 30.3%, arterial hypertension 77.4%, diabetes mellitus 25.2% and dyslipidemia 50.3%. In 42.6% isolated myocardial revascularization was performed, in 12.9% myocardial revascularization plus one or more valve procedures, and in 44.5% isolated valve procedures. In all cases there was a significant reduction between preoperative (443 pg/ml, interquartile range 143-1.193) and postoperative NT-proBNP (362 pg/ml, interquartile range 138-939) (p&lt;0.001). Age, creatininemia, left ventricular ejection fraction, functional classification IV of the New York Heart Association and dyslipidemia turned out to be predictors of preoperative NT-proBNP. Preoperative NT-proBNP was higher in patients with prolonged intensive care unit stay, mechanical ventilation and inotropic requirements. However, it turned out to be an independent predictor only for prolonged intensive care unit stay. (OR=1.62; IC95%:1.11-2.35. p=0.012). The best cut-off value for prolonged intensive care unit stay was 409 pg/ml (AUC=0.68).  Conclusion: preoperative determination of NT-proBNP is an efficient tool to predict postoperative evolution. Cardiopulmonary bypass is associated to a significant drop in that marker.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução:  a porção terminal amino do peptído natriurético tipo B é um biomarcador diagnóstico e prognóstico na insuficiência cardíaca. Seu uso como preditor prognóstico no pós-operatório de cirurgia cardíaca não está estabelecido.  Objetivo:  determinar se o valor de NT-proBNP no período pré-operatório de cirurgia cardíaca está associado a parâmetros de evolução pós-operatória. Objetivo primário: avaliar sua associação com tempo prolongado de internação em unidade de terapia intensiva. Objetivos secundários: associação com tempo de ventilação mecânica e necessidade inotrópica. Determinar a evolução da concentração de NT-proBNP após circulação extracorpórea.  Método: estudo multicêntrico retrospectivo endossado pelo Comitê de Pesquisa do Instituto Nacional de Cirurgia Cardíaco e pelo Comitê de Ética da Pesquisa do Hospital da Clínica. Foram incluídos pacientes operados de março a agosto de 2018. O NT-proBNP foi dosado durante a indução anestésica e após a circulação extracorpórea. O NT-proBNP foi comparado de acordo com os fatores de risco e procedimentos realizados. A área da curva (AUC) foi determinada pela análise da curva ROC e o melhor ponto de corte NT-proBNP foi estabelecido na previsão do tempo prolongado de internação em unidade de terapia intensiva. O tempo de internação em unidade de terapia intensiva, tempo de ventilação mecânica e necessidade inotrópica prolongada foram definidos como maiores que 2 dias, 6 e 24 horas, respectivamente. Um alfa de 0,05 foi considerado significativo.  Resultados: 155 pacientes foram incluídos. Idade, creatininemia e fração de ejeção do ventrículo esquerdo foram 65,8± 11,4 anos, 1,15 ± 1,10 mg/dl e 52,8 ± 11,9 %, respectivamente. A prevalência do sexo feminino foi 30,3%, hipertensão arterial 77,4%, diabetes mellitus 25,2% e dislipidemia 50,3%. Em 42,6%, foi realizada revascularização do miocárdio isolada, em 12,9% revascularização do miocárdio associada a um ou mais procedimentos valvares, e em 44,5% procedimentos puros da válvula. Em todos os casos, houve uma diminuição significativa entre o pré-operatório (443 pg/ml, rango interquartílico 143-1.193) e o pós-operatório de NT-proBNP (362 pg/ml, rango interquartilico 138-939) (p &lt;0,001). Idade, cretininemia, fração de ejeção do ventrículo esquerdo, classe funcional IV da New York Heart Association e dislipidemia foram preditores de NT-proBNP pré-operatório. NT-proBNP pré-operatório foi elevado em pacientes com tempo prolongado de internação em unidade de terapia intensiva, tempo de ventilação mecânica e necessidade inotrópica prolongada, mas apenas acabou por ser preditor independente em internação prolongada em unidade de terapia intensiva (OR=1,62; IC95%:1,11-2,35. p=0,012). O melhor valor de corte para internação prolongada foi de 409 pg/ml (AUC = 0,68).  Conclusão:  a determinação pré-operatória de NT-proBNP é útil como ferramenta na previsão da evolução pós-operatória. A circulação extracorpórea está associada a uma diminuição significativa desse marcador.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Propéptido natriurético cerebral n-terminal]]></kwd>
<kwd lng="es"><![CDATA[Período posoperatorio]]></kwd>
<kwd lng="es"><![CDATA[Cirugía cardíaca]]></kwd>
<kwd lng="en"><![CDATA[N-terminal cerebral natriuretic propeptide]]></kwd>
<kwd lng="en"><![CDATA[Postoperative period]]></kwd>
<kwd lng="en"><![CDATA[Heart surgery]]></kwd>
<kwd lng="pt"><![CDATA[Propeptídeo natriurético cerebral n-terminal]]></kwd>
<kwd lng="pt"><![CDATA[Período pós-operatório]]></kwd>
<kwd lng="pt"><![CDATA[Cirurgia cardíaca]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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