<?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>2221-2450</journal-id>
<journal-title><![CDATA[Revista CENIC Ciencias Biológicas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. CENIC Cienc. Biol]]></abbrev-journal-title>
<issn>2221-2450</issn>
<publisher>
<publisher-name><![CDATA[Centro Nacional de Investigaciones Científicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2221-24502021000300237</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Ecocardiographic, neurosonological and biological markers in the differential diagnosis of ischemic stroke]]></article-title>
<article-title xml:lang="es"><![CDATA[Marcadores ecocardiográficos, neurosonológicos y biológicos en el diagnóstico diferencial de ictus isquémicos]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Pérez]]></surname>
<given-names><![CDATA[Augusto César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez López]]></surname>
<given-names><![CDATA[Javier Vicente]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arteche Prior]]></surname>
<given-names><![CDATA[Marianela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Nodarse]]></surname>
<given-names><![CDATA[Yamile]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez Palacios]]></surname>
<given-names><![CDATA[Raixa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Morales]]></surname>
<given-names><![CDATA[Leydi]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernández Travieso]]></surname>
<given-names><![CDATA[Julio César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Neurología y Neurocirugía  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro Nacional de Investigaciones Científicas Unidad de Ensayos Clínicos ]]></institution>
<addr-line><![CDATA[ La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>52</volume>
<numero>3</numero>
<fpage>237</fpage>
<lpage>246</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2221-24502021000300237&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2221-24502021000300237&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2221-24502021000300237&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Cerebrovascular disease is an important and well-studied health problem; it has been the leading cause of disability, the second of dementia and the third of death in developed and developing countries for decades. The general objective of this study was to define the value of transthoracic echocardiography, neurosonological and biological markers in the differential diagnosis of ischemic strokes and the specific objectives was to identify socio-demographic variables and risk factors and determine the behavior of the biological, neurological, electrocardiographic and echocardiographic variables, according to the type of stroke. It is a descriptive and observational study based on data obtained from the 127 medical records of patients with the diagnosis of ischemic cerebrovascular disease, selecting a total of 79 records of patients who had undergone transthoracic echocardiography and ultrasound Doppler of the neck arteries, at the National Institute of Neurology Neurosurgery of Cuba in the period from January 2017 to December 2019. Of the 79 clinical histories evaluated, 35.44% (n=28) were embolic strokes, while the remaining 51 cases (64.55%) were non-embolic. Males (53.16%) predominate in the entire sample. The arterial hypertension related with the 88.23% of non-embolic strokes and with 39.28% of embolic stroke (p&lt;0.0001). Some risk factors such as age and history of arterial hypertension, heart failure and previous cerebrovascular disease were relevant in terms of their relationship with the stroke profile in the present research It is concluded that the electrocardiographic, echocardiographic, neurosonological and metabolic variables used were decisive in the differential diagnosis of stroke in this group of patients studied, with the echocardiographic and neurosonological variables being the most significant.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  La enfermedad cerebrovascular es un problema de salud importante y bien estudiado; ha sido la principal causa de discapacidad, la segunda de demencia y la tercera de muerte en los países desarrollados y en desarrollo durante décadas. El objetivo general de este estudio fue definir el valor de la ecocardiografía transtorácica, marcadores neurosonológicos y biológicos en el diagnóstico diferencial del ictus isquémico y los objetivos específicos fue identificar variables sociodemográficas y factores de riesgo según el tipo de ictus y determinar el comportamiento de variables biológicas, neurológicas, electrocardiográficas y ecocardiográficas según el tipo de ictus. Se trata de un estudio descriptivo y observacional basado en datos obtenidos de las 127 historias clínicas de pacientes con diagnóstico de enfermedad cerebrovascular isquémica, seleccionando un total de 79 registros de pacientes a los que se les realizó ecocardiografía transtorácica y ecografía Doppler de las arterias del cuello, en el Instituto Nacional de Neurología y Neurocirugía de Cuba en el período de enero del 2017 a diciembre del 2019. De las 79 historias clínicas evaluadas, el 35.44% (n = 28) fueron ictus embólicos, mientras que los 51 casos restantes (64.55%) fueron no embólicos, predominantemente el sexo masculino (53.16%) en la muestra total. La hipertensión arterial se relacionó con el 88.23% de los ictus no embólicos y con el 39.28% de los ictus embólicos (p &lt;0,0001). Algunos factores de riesgo como la edad y los antecedentes de hipertensión arterial, insuficiencia cardíaca y enfermedad cerebrovascular previa fueron relevantes en cuanto a su relación con el perfil de ictus en la investigación que realizamos. Se concluye que las variables electrocardiográficas, ecocardiográficas, neurosonológicas y metabólicas utilizadas fueron determinantes en el diagnóstico diferencial del ictus en este grupo de pacientes estudiados, resultando las variables ecocardiográficas, neurosonológicas las de mayor significación]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Cerebrovascular disease]]></kwd>
<kwd lng="en"><![CDATA[ischemic stroke]]></kwd>
<kwd lng="en"><![CDATA[differential diagnosis]]></kwd>
<kwd lng="en"><![CDATA[risk factors]]></kwd>
<kwd lng="es"><![CDATA[Traditional medicine]]></kwd>
<kwd lng="es"><![CDATA[Medicinal plants]]></kwd>
<kwd lng="es"><![CDATA[Location]]></kwd>
<kwd lng="es"><![CDATA[Georeferencing]]></kwd>
</kwd-group>
</article-meta>
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