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	<front>
		<journal-meta>
			<journal-id journal-id-type="publisher-id">rac</journal-id>
			<journal-title-group>
				<journal-title>Revista argentina de cardiología</journal-title>
				<abbrev-journal-title abbrev-type="publisher">Rev Argent Cardiol</abbrev-journal-title>
			</journal-title-group>
			<issn pub-type="epub">1850-3748</issn>
			<issn pub-type="ppub">0034-7000</issn>
			<publisher>
				<publisher-name>Sociedad Argentina de Cardiología</publisher-name>
			</publisher>
		</journal-meta>
		<article-meta>
			<article-id pub-id-type="publisher-id">00001</article-id>
			<article-id pub-id-type="doi">10.7775/rac.es.v92.i6.20846</article-id>
			<article-categories>
				<subj-group subj-group-type="heading">
					<subject>EDITORIAL</subject>
				</subj-group>
			</article-categories>
			<title-group>
				<article-title>Shock cardiogénico: evolución conforme al sexo en América Latina</article-title>
				<trans-title-group xml:lang="en">
					<trans-title>Cardiogenic Shock: Evolution According to Gender in Latin America</trans-title>
				</trans-title-group>
			</title-group>
			<contrib-group>
				<contrib contrib-type="author">
					<contrib-id contrib-id-type="orcid">0000-0002-0169-998X</contrib-id>
					<name>
						<surname>Thiele</surname>
						<given-names>Holger</given-names>
					</name>
					<xref ref-type="aff" rid="aff1"><sup>1</sup></xref>
				</contrib>
			</contrib-group>
				<aff id="aff1">
					<label>1</label>
					<institution content-type="original">Centro del Corazón Leipzig en la Universidad de Leipzig, Leipzig, Alemania</institution>
					<institution content-type="normalized">Universität Leipzig</institution>
					<institution content-type="orgdiv1">Centro del Corazón Leipzig</institution>
					<institution content-type="orgname">Universidad de Leipzig</institution>
					<addr-line>
						<named-content content-type="city">Leipzig</named-content>
					</addr-line>
					<country country="DE">Germany</country>
					<email>holger.thiele@medizin.uni-leipzig.de</email>
				</aff>
			<author-notes>
				<corresp id="c1">
					<label>Dirección para correspondencia:</label> Holger Thiele Director Heart Center Leipzig at Leipzig University Department of Internal Medicine/Cardiology Strümpellstr. 39 D-04289 Leipzig, Germany. Correo electrónico: <email>holger.thiele@medizin.uni-leipzig.de</email>
				</corresp>
				<fn fn-type="conflict" id="fn1">
					<label>Declaración de conflicto de intereses</label>
					<p> El autor declara que no tiene conflicto de intereses. (Véase formulario de conflictos de interés del autor en la Web).</p>
				</fn>
			</author-notes>
			<!--<pub-date date-type="pub" publication-format="electronic">
				<day>20</day>
				<month>12</month>
				<year>2024</year>
			</pub-date>
			<pub-date date-type="collection" publication-format="electronic">
				<season>Nov-Dec</season>
				<year>2024</year>
			</pub-date>-->
			<pub-date pub-type="epub-ppub">
				<season>Nov-Dec</season>
				<year>2024</year>
			</pub-date>
			<volume>92</volume>
			<issue>6</issue>
			<fpage>409</fpage>
			<lpage>410</lpage>
			<permissions>
				<license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by-nc-sa/4.0/" xml:lang="es">
					<license-p>Este es un artículo publicado en acceso abierto bajo una licencia Creative Commons</license-p>
				</license>
			</permissions>
			<counts>
				<fig-count count="0"/>
				<table-count count="0"/>
				<equation-count count="0"/>
				<ref-count count="17"/>
				<page-count count="2"/>
			</counts>
		</article-meta>
	</front>
	<body>
		<p>El <italic>shock</italic> cardiogénico sigue siendo la causa de muerte más importante en los pacientes hospitalizados por infarto agudo de miocardio. El ensayo aleatorizado SHOCK (<italic>SHould we emergently revascularize Occluded Coronaries for cardiogenic shocK</italic>) sentó las bases del tratamiento invasivo temprano en estos pacientes, (<xref ref-type="bibr" rid="B1">1</xref>) lo que posteriormente dio lugar a un aumento de las estrategias de revascularización temprana en todo el mundo. Esta estrategia ha mejorado los resultados de forma notable y ha reducido la mortalidad hospitalaria de los pacientes con <italic>shock</italic> cardiogénico del 70-80 % al 40-50 % en la actualidad. (<xref ref-type="bibr" rid="B2">2</xref>) </p>
		<p>Se han realizado pocos ensayos controlados aleatorizados de referencia a gran escala en el contexto del <italic>shock</italic> cardiogénico, como el mencionado ensayo SHOCK, en 1999, (<xref ref-type="bibr" rid="B1">1</xref>) el ensayo IABP-SHOCK II, (<xref ref-type="bibr" rid="B3">3</xref>,<xref ref-type="bibr" rid="B4">4</xref>,<xref ref-type="bibr" rid="B5">5</xref>) el ensayo CULPRIT-SHOCK, (<xref ref-type="bibr" rid="B6">6</xref>,<xref ref-type="bibr" rid="B7">7</xref>) el ensayo ECLS-SHOCK (<xref ref-type="bibr" rid="B8">8</xref>) y el ensayo reciente DanGer-Shock. (<xref ref-type="bibr" rid="B9">9</xref>) Por consiguiente, muy pocas medidas para tratar el <italic>shock</italic> cardiogénico se basan en evidencia clínica sólida. (<xref ref-type="bibr" rid="B10">10</xref>,<xref ref-type="bibr" rid="B11">11</xref>) </p>
		<p>Cuando no se dispone de evidencia suficiente y la mortalidad sigue siendo elevada, la evidencia procedente de datos observacionales es importante y se suma a los datos aleatorizados. Esto se aplica sobre todo a las diferencias específicas en cuanto al sexo en el <italic>shock</italic> cardiogénico, ya que las mujeres suelen estar subrepresentadas en los ensayos controlados aleatorizados a gran escala. En parte, esto se debe a que las mujeres son mayores y muchos ensayos controlados aleatorizados a gran escala tienen un límite de edad máximo para la inclusión de pacientes, lo que automáticamente deriva en la inclusión de menos mujeres debido a que las que presentan <italic>shock</italic> cardiogénico son de mayor edad. Por lo tanto, en la práctica clínica es incluso más importante evaluar los resultados del síndrome coronario agudo y sus complicaciones, incluido el <italic>shock</italic> cardiogénico, en función de las diferencias específicas por sexo. Solo si se evalúan los resultados se pueden aplicar medidas para mejorarlos tanto en las mujeres como en los hombres. Por ello, solo cabe apoyar la publicación del registro LATIN Shock de Argentina, Bolivia, Chile, Ecuador, Honduras, Paraguay y Perú. (<xref ref-type="bibr" rid="B12">12</xref>) La mortalidad hospitalaria del 49 % en mujeres y 54 % en hombres sigue siendo muy elevada en la era actual de la revascularización temprana. (<xref ref-type="bibr" rid="B13">13</xref>) Es interesante señalar que a pesar de la edad más avanzada de las mujeres no hubo diferencias en la mortalidad, lo que también se ha demostrado en los subanálisis específicos por sexo de los estudios CULPRIT-SHOCK e IABP-SHOCK II. (<xref ref-type="bibr" rid="B14">14</xref>,<xref ref-type="bibr" rid="B15">15</xref>) Por el contrario, según otros datos observacionales, las mujeres que presentan shock cardiogénico reciben tratamientos menos invasivos lo que deriva en mayor mortalidad. (<xref ref-type="bibr" rid="B16">16</xref>) En consecuencia, el registro LATIN Shock avala que no existen diferencias relevantes en los resultados del shock cardiogénico en función del sexo.</p>
		<p>Cabe destacar que todavía se trata a la mayoría de los pacientes con balón de contrapulsación intraaórtico, cuando la evidencia no avala el uso de este dispositivo. (<xref ref-type="bibr" rid="B3">3</xref>,<xref ref-type="bibr" rid="B4">4</xref>,<xref ref-type="bibr" rid="B5">5</xref>) Por otro lado, la evidencia sobre la asistencia mecánica circulatoria activa también es limitada y, en la actualidad, solo en el ensayo DanGer-Shock y en un metaanálisis de todos los ensayos donde se compara la asistencia mecánica circulatoria activa con el control, se respalda su uso en pacientes muy selectos con infarto de miocardio con elevación del segmento ST y sin riesgo de lesión cerebral hipóxica. (<xref ref-type="bibr" rid="B9">9</xref>,<xref ref-type="bibr" rid="B17">17</xref>) </p>
		<p>Debemos felicitar a los autores por la creación del registro LATIN Shock.</p>
		<p>Se deben dedicar más esfuerzos a los registros de <italic>shock</italic> cardiogénico. Asimismo, un número de pacientes mayor ayudará a definir las mejores estrategias de tratamiento para mejorar los resultados en el <italic>shock</italic> cardiogénico, también con respecto a las diferencias específicas por sexo.</p>
	</body>
	<back>
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	<!--<sub-article article-type="translation" id="s1" xml:lang="en">
		<front-stub>
			<article-id pub-id-type="doi">10.7775/rac.v92.i6.20846</article-id>
			<article-categories>
				<subj-group subj-group-type="heading">
					<subject>EDITORIAL</subject>
				</subj-group>
			</article-categories>
			<title-group>
				<article-title>Cardiogenic Shock: Evolution According to Gender in Latin America</article-title>
			</title-group>
			<contrib-group>
				<contrib contrib-type="author">
					<contrib-id contrib-id-type="orcid">0000-0002-0169-998X</contrib-id>
					<name>
						<surname>Thiele</surname>
						<given-names>Holger</given-names>
					</name>
					<xref ref-type="aff" rid="aff2"><sup>1</sup></xref>
				</contrib>
				<aff id="aff2">
					<label>1</label>
					<institution content-type="original">Centro del Corazón Leipzig en la Universidad de Leipzig, Leipzig, Alemania</institution>
					<institution content-type="normalized">Universität Leipzig</institution>
					<institution content-type="orgdiv1">Centro del Corazón Leipzig</institution>
					<institution content-type="orgname">Universidad de Leipzig</institution>
					<addr-line>
						<city>Leipzig</city>
					</addr-line>
					<country country="DE">Germany</country>
				</aff>
			</contrib-group>
			<author-notes>
				<corresp id="c2">
					<label> Correspondence:</label> Holger Thiele Director Heart Center Leipzig at Leipzig University Department of Internal Medicine/Cardiology Strümpellstr. 39 D-04289 Leipzig, Germany. E-mail: <email>holger.thiele@medizin.uni-leipzig.de</email>
				</corresp>
				<fn fn-type="conflict" id="fn3">
					<label>Conflict of interest</label>
					<p> None declared. (See authors' conflict of interests forms on the web).</p>
				</fn>
			</author-notes>
		</front-stub>
		<body>
			<p>Cardiogenic shock is still the most important cause of death in patients hospitalized with acute myocardial infarction. The randomized SHOCK (SHould we emergently revascularize Occluded Coronaries for cardiogenic shocK) trial set the basis for an early invasive management of these patients, (<xref ref-type="bibr" rid="B1">1</xref>) with subsequent increase in early revascularization strategies across the globe. This strategy has dramatically improved outcome and reduced in-hospital mortality of cardiogenic shock patients from the former 70-80% to nowadays 40-50%. (<xref ref-type="bibr" rid="B2">2</xref>)</p>
			<p>Currently, only few large-scale landmark randomized controlled trials have been performed in the cardiogenic shock setting including the above-mentioned SHOCK trial in 1999, (<xref ref-type="bibr" rid="B1">1</xref>) the IABP-SHOCK II trial, (<xref ref-type="bibr" rid="B3">3</xref>,<xref ref-type="bibr" rid="B4">4</xref>,<xref ref-type="bibr" rid="B5">5</xref>) the CULPRIT-SHOCK trial, (<xref ref-type="bibr" rid="B6">6</xref>,<xref ref-type="bibr" rid="B7">7</xref>) the ECLS-SHOCK trial, (<xref ref-type="bibr" rid="B8">8</xref>) and the recent DanGer-Shock trial. (<xref ref-type="bibr" rid="B9">9</xref>) Accordingly, only few measures rely on strong clinical evidence in the treatment of cardiogenic shock. (<xref ref-type="bibr" rid="B10">10</xref>,<xref ref-type="bibr" rid="B11">11</xref>) </p>
			<p>When insufficient evidence is available and mortality still high, evidence from observational data is important and additive to randomized data. This is particularly true for sex specific differences in cardiogenic shock because often women are underrepresented in the large-scale randomized controlled trials. This is partly an effect because women are older and many large-scale randomized controlled trials had an upper age limit for inclusion which automatically leads to less women for inclusion because of the higher age in women presenting with cardiogenic shock. Therefore, it is even more important in clinical practice to measure the outcome of acute coronary syndromes and the complications including cardiogenic shock with respect to sex specific differences. Only by measuring outcome, measures can be implemented to improve outcome for women and also men. As such, it can only be supported to see the publication of the LATIN Shock registry from Argentina, Bolivia, Chile, Ecuador, Honduras, Paraguay and Peru. (<xref ref-type="bibr" rid="B12">12</xref>) The in-hospital mortality of 49% in women and 54% in men shows the still very high mortality in cardiogenic shock in the current era of early revascularization. (<xref ref-type="bibr" rid="B13">13</xref>) Interestingly, despite the older age in women there was no difference in mortality, which has also been shown in other analyses such as the CULPRIT-SHOCK and IABP-SHOCK II sex specific subanalyses. (<xref ref-type="bibr" rid="B14">14</xref>,<xref ref-type="bibr" rid="B15">15</xref>) In contrast, other observational data suggest less invasive treatment in females presenting with cardiogenic shock with subsequent higher mortality. (<xref ref-type="bibr" rid="B16">16</xref>) Accordingly, the LATIN Shock registry supports no relevant outcome differences in cardiogenic shock based on sex.</p>
			<p>Interestingly, still the majority of patients is treated by intraaortic balloon pumping where the evidence does not support to use this device. (<xref ref-type="bibr" rid="B3">3</xref>,<xref ref-type="bibr" rid="B4">4</xref>,<xref ref-type="bibr" rid="B5">5</xref>) On the other hand evidence for active mechanical circulatory support is also limited and currently only the DanGer-Shock trial and a meta-analysis of all trials comparing active mechanical circulatory support versus control supports the use in very selected patients with ST-elevation myocardial infarction and no risk of hypoxic brain injury. (<xref ref-type="bibr" rid="B9">9</xref>,<xref ref-type="bibr" rid="B17">17</xref>) </p>
			<p>The authors should be congratulated to put this LATIN Shock registry together. More efforts should be directed towards cardiogenic shock registries and a higher number of patients will help to define the best treatment strategies to improve outcome in cardiogenic shock also with respect to sex specific differences.</p>
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					<label>Ethical considerations</label>
					<p> Not applicable.</p>
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