<?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>2221-2434</journal-id>
<journal-title><![CDATA[Revista Finlay]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Finlay]]></abbrev-journal-title>
<issn>2221-2434</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Médicas de Cienfuegos. Centro Provincial de información de Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2221-24342023000300282</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Características y evolución clínica de pacientes con infarto agudo de miocardio y elevación del segmento ST con y sin bloqueo interauricular]]></article-title>
<article-title xml:lang="en"><![CDATA[Characteristics and Clinical Course of Patients with Acute Myocardial Infarction and ST-segment Elevation with and without Interatrial Block]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valladares Carvajal]]></surname>
<given-names><![CDATA[Francisco de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carretero Acosta]]></surname>
<given-names><![CDATA[Verónica Mercedes]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carmona Puerta]]></surname>
<given-names><![CDATA[Raimundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Cardoso]]></surname>
<given-names><![CDATA[Aymara Marcia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bernal Valladares]]></surname>
<given-names><![CDATA[Ernesto Julio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General Universitario Dr. Gustavo Aldereguía Lima  ]]></institution>
<addr-line><![CDATA[Cienfuegos ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2023</year>
</pub-date>
<volume>13</volume>
<numero>3</numero>
<fpage>282</fpage>
<lpage>292</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2221-24342023000300282&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2221-24342023000300282&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2221-24342023000300282&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Fundamento  resulta novedoso establecer la relación entre bloqueo interauricular e infarto agudo de miocardio con elevación del segmento ST debido a los pocos estudios que abordan el tema.  Objetivo  evaluar las características y evolución clínica de pacientes con infarto agudo de miocardio con elevación del segmento ST con y sin bloqueo interauricular.  Métodos:  se realizó un estudio descriptivo y correlacional en unidades de cuidados progresivos del Hospital General Universitario Dr. Gustavo Aldereguía Lima de Cienfuegos. Se seleccionaron 169 sujetos con diagnóstico de infarto agudo de miocardio con elevación del segmento ST divididos en dos grupos con y sin bloqueo interauricular. Se analizaron como variables demográficas: edad, sexo, color de la piel y entre las clínicas hábitos tóxicos (fumador, exfumador); antecedentes patológicos (infarto de miocardio, angina, enfermedad arterial periférica, hipertensión arterial, diabetes mellitus tipo 2, enfermedad renal crónica; localización del infarto (anterior, inferior, bloqueo de rama izquierda); complicaciones: insuficiencia cardíaca, fibrilación auricular, taquicardia ventricular/fibrilación ventricular, trastornos de conducción aurículo ventricular, complicación mecánica, angina postinfarto, embolismo arterial) y estado al egreso (vivo o fallecido).  Resultados el 52,17 % de los pacientes con infarto agudo de miocardio con elevación del segmento ST con bloqueo interauricular desarrollaron insuficiencia cardíaca, vs el 29,45 % de los pacientes sin bloqueo con significación estadística (p = 0.03). La relación entre la ocurrencia o no de complicaciones (así como el estado al egreso) y la presencia o no de bloqueo resultó muy significativa (p=0.01).  Conclusiones  el análisis minucioso en este contexto, de otros aspectos no habituales como la onda p, debe ser también rutinario, pues la documentación de bloqueo interauricular pudiera relacionarse con el curso clínico de los pacientes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Foundation: it is novel to establish the relationship between interatrial block and acute myocardial infarction with ST-segment elevation due to the few studies that address the subject.  Objective: to evaluate the characteristics and clinical evolution of patients with ST-segment elevation acute myocardial infarction with and without interatrial block.  Methods: a descriptive and correlational study was carried out in progressive care units of the Dr. Gustavo Aldereguía Lima University General Hospital in Cienfuegos. 169 subjects with a diagnosis of ST-segment elevation myocardial infarction divided into two groups with and without interatrial block were selected. Demographic variables were analyzed: age, sex, skin color and between clinics: toxic habits (smoker, ex-smoker); medical history (myocardial infarction, angina, peripheral arterial disease, arterial hypertension, type 2 diabetes mellitus, chronic kidney disease; infarct location (anterior, inferior, left bundle branch block); complications: heart failure, atrial fibrillation, ventricular tachycardia/ventricular fibrillation, atrioventricular conduction disorders, mechanical complication, post infarction angina, arterial embolism) and discharge status (alive or deceased).  Results: 52.17 % of patients with ST-segment elevation myocardial infarction with interatrial block developed heart failure, vs 29.45 % among patients without block with statistical significance (p = 0.03). The relationship between the occurrence or not of complications (as well as the state at discharge) and the presence or not of blockade was highly significant (p=0.01).  Conclusions: the detailed analysis, in this context, of the p wave of the electrocardiogram should be routine, since the documentation of interatrial block could be related to the clinical course of the patients.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[síndrome coronario]]></kwd>
<kwd lng="es"><![CDATA[infarto agudo de miocardio]]></kwd>
<kwd lng="es"><![CDATA[infarto de miocardio con elevación del segmento st]]></kwd>
<kwd lng="es"><![CDATA[factores de riesgo]]></kwd>
<kwd lng="en"><![CDATA[coronary syndrome]]></kwd>
<kwd lng="en"><![CDATA[acute myocardial infarction]]></kwd>
<kwd lng="en"><![CDATA[st elevation myocardial infarction]]></kwd>
<kwd lng="en"><![CDATA[risk factors]]></kwd>
</kwd-group>
</article-meta>
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