<?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>S1688-04202025000101203</article-id>
<article-id pub-id-type="doi">10.29277/cardio.40.1.13</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Impacto pronóstico de una oclusión coronaria crónica en arteria no culpable en el contexto de un síndrome coronario agudo con elevación del segmento ST]]></article-title>
<article-title xml:lang="en"><![CDATA[Prognostic impact of chronic coronary occlusion in a non-culprit artery in the context of acute coronary syndrome with ST segment elevation]]></article-title>
<article-title xml:lang="pt"><![CDATA[Impacto prognóstico da oclusão coronariana crônica em artéria não culpada no contexto de síndrome coronariana aguda com supradesnivelamento do segmento ST]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Menoni Giordano]]></surname>
<given-names><![CDATA[Carolina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Albistur]]></surname>
<given-names><![CDATA[Juan Sebastián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jubany]]></surname>
<given-names><![CDATA[Leandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mallo]]></surname>
<given-names><![CDATA[Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silveira]]></surname>
<given-names><![CDATA[Anaulina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,cmenonigiordano@gmail.com  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<volume>40</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S1688-04202025000101203&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S1688-04202025000101203&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S1688-04202025000101203&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 presence of chronic total occlusions (CTOs) is frequently observed in cases referring to coronary angiography. CTOs are associated with multivessel disease. Several studies have shown that the presence of CTOs is a predictor of early and late mortality and is even a poor prognostic factor in cases of ST elevation myocardial infarction (STEMI).  Objective: to determine differences in all-cause mortality at 30 days and 3 years in subjects with STEMI who did or did not present at least one CTO in a non-infarction related artery (non-IRA).  Methods: observational, analytical, retrospective, single-center case-control study. We included cases of ST-segment elevation acute coronary syndrome (STE-ACS) treated with primary angioplasty at our center between 2013 and 2018. The CTO group included cases with a non-IRA CTO, defined as the presence of TIMI 0 flow in the occluded coronary segment, with an estimated occlusion time greater than 3 months. The control group was selected by 2:1 matching of the total STE-ACS with age and sex as matching criteria. Continuous variables are presented as mean ± SD, and discrete variables are presented as absolute values and percentages. Alpha error &lt; 0.05 was set. Kaplan-Meier survival curves and log-rank tests were used to establish differences in survival. Odds ratios (OR) and 95% confidence intervals were calculated. A multivariate logistic regression model was performed to eliminate confounding variables (adjusted OR).  Results:  of a total of 1,520 STEMI, 135 cases and 270 controls were included. The median time between ACS and registration (follow-up) was 5.4 years (IQ 3.4-6.9 years). During this period, 56 deaths were observed in the CTO group (41.5%; CI 33.2-49.8%), and 59 deaths in the control group (21.9%; CI 14.9-28.9%), p &lt; 0.001. The OR for death at the end of the period was 2.535 (CI 1.620-3.967), and the OR for death at the end of the adjusted period was 1.407 (CI 1.231-1.719). The 30-day mortality rate was 22.2% (CI 15.2-29.2%) and 11.2% (CI 7.4-15.0%) for the CTO and control groups, respectively; p = 0.003, OR at month: 2,286 (CI 1,311-3,984). The 3-year mortality rate for the CTO group was 32.6% (CI 24.7-40.5%), being lower for the control group at 15.9% (CI 11.5-20.3%), p &lt; 0.001; 3-year OR: 2,553 (95% CI 1,571-4,148).  Conclusions: having a non-ARI CTO doubles the 30-day and 3-year mortality rates after the index event compared with the group without such lesions. The presence of a CTO is an independent predictor of higher mortality in the multivariate analysis.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução: a presença de oclusões coronárias crônicas (OCCs) é frequentemente observada nos casos referenciados para angiografia coronária. As OCCs estão associadas à doença multiarterial. Vários estudos demonstraram que a presença de OCCs é um preditor de mortalidade precoce e tardia, é mesmo um fator de mal prognóstico nos casos de infarto agudo do miocárdio com supradesnivelamento do segmento ST (IAMCST).  Objetivo:  determinar as diferenças na mortalidade por todas as causas aos 30 dias e aos 3 anos em indivíduos com IAMCST que apresentaram ou não pelo menos uma OCC em artéria não relacionada ao infarto agudo (não-RIA).  Métodos:  estudo observacional, analítico, retrospetivo, caso-controlo, unicêntrico. Incluímos casos de síndrome coronário agudo com supradesnivelamento do segmento ST (SCACST) tratados com angioplastia primária no nosso centro entre 2013 e 2018. O grupo OCC incluiu casos com OCC não-RIA, definida como a presença de fluxo TIMI 0 no segmento coronário ocluído, com um tempo de oclusão estimado superior a 3 meses. O grupo controlo foi selecionado por emparelhamento 2:1 do total de SCACST com a idade e o sexo como critérios de emparelhamento. As variáveis contínuas são apresentadas como média ± DP, e as variáveis discretas são apresentadas como variáveis absolutas e percentagens. Foi definido o erro alfa &lt; 0,05. Curvas de sobrevivência de Kaplan-Meier e testes de log-rank foram utilizados para estabelecer diferenças na sobrevivência. Foram calculados os odds ratios (OR) e os intervalos de confiança de 95%. Foi realizado um modelo de regressão logística multivariada para eliminar as variáveis de confusão (OR ajustado).  Resultados:  de um total de 1.520 IAMCST, foram incluídos 135 casos e 270 controlos. O tempo mediano entre a SCA e o registo (follow-up) foi de 5,4 anos (IQ 3,4-6,9 anos). Durante este período, foram observadas 56 mortes no grupo OCC (41,5%; IC 33,2-49,8%) e 59 mortes no grupo de controlo (21,9%; IC 14,9-28,9%), p &lt; 0,001. O OR para mortalidade ao final do período foi de 2,535 (IC 1,620-3,967), e o OR ajustado para mortalidade ao final do período foi de 1,407 (IC 1,231-1,719). A taxa de mortalidade aos 30 dias foi de 22,2% (IC 15,2-29,2%) e 11,2% (IC 7,4-15,0%) para os grupos OCC e controlo, respetivamente; p = 0,003. OR em 1 mês foi 2.286 (IC 1.311-3.984). A taxa de mortalidade aos 3 anos para o grupo OCC foi de 32,6% (IC 24,7-40,5%), foi inferior para o grupo controlo, 15,9% (IC 11,5-20,3%), p &lt; 0,001; OR em 3 anos: 2.553 (IC 95% 1,571-4,148).  Conclusões:  a presença de uma OCC não-RIA duplica a taxa de mortalidade aos 30 dias e 3 anos após o evento índice, em comparação com o grupo sem estas lesões. A apresentação de OCC é um preditor independente de maior mortalidade na análise multivariada.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[INFARTO AGUDO DE MIOCARDIO CON SUPRADESNIVEL DEL ST]]></kwd>
<kwd lng="es"><![CDATA[OCLUSIONES TOTALES CRÓNICAS]]></kwd>
<kwd lng="es"><![CDATA[ARTERIA NO RESPONSABLE DE INFARTO]]></kwd>
<kwd lng="es"><![CDATA[IMPACTO PRONÓSTICO]]></kwd>
<kwd lng="en"><![CDATA[ST ELEVATION MYOCARDIAL INFARCTION]]></kwd>
<kwd lng="en"><![CDATA[CHRONIC TOTAL OCCLUSIONS]]></kwd>
<kwd lng="en"><![CDATA[NON-INFARCTION ARTERY]]></kwd>
<kwd lng="en"><![CDATA[PROGNOSTIC IMPACT]]></kwd>
<kwd lng="pt"><![CDATA[OCT: OCLUSÕES TOTAIS CRÔNICAS]]></kwd>
<kwd lng="pt"><![CDATA[INFARTO DO MIOCÁRDIO COM SUPRADESNIVELAMENTO DO SEGMENTO ST]]></kwd>
<kwd lng="pt"><![CDATA[ARTÉRIA NÃO RESPONSÁVEL PELO INFARTO]]></kwd>
<kwd lng="pt"><![CDATA[IMPACTO PROGNÓSTICO]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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