<?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>2448-8909</journal-id>
<journal-title><![CDATA[Medicina crítica (Colegio Mexicano de Medicina Crítica)]]></journal-title>
<abbrev-journal-title><![CDATA[Med. crít. (Col. Mex. Med. Crít.)]]></abbrev-journal-title>
<issn>2448-8909</issn>
<publisher>
<publisher-name><![CDATA[Colegio Mexicano de Medicina Crítica A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-89092018000100013</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Clasificación del choque séptico a partir de los iones no medidos]]></article-title>
<article-title xml:lang="en"><![CDATA[Classification of septic shock based on unmeasured ions]]></article-title>
<article-title xml:lang="pt"><![CDATA[Classificação do choque séptico a partir de íons não mensuráveis]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pin Gutiérrez]]></surname>
<given-names><![CDATA[Eusebio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez Díaz]]></surname>
<given-names><![CDATA[Jesús Salvador]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Rodríguez]]></surname>
<given-names><![CDATA[Enrique Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Méndez]]></surname>
<given-names><![CDATA[Rosalba Carolina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Peniche Moguel]]></surname>
<given-names><![CDATA[Karla Gabriela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Calyeca Sánchez]]></surname>
<given-names><![CDATA[María Verónica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Hospital de Especialidades Núm. 14 Unidad Médica de Alta Especialidad 189]]></institution>
<addr-line><![CDATA[ Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro Médico ABC  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2018</year>
</pub-date>
<volume>32</volume>
<numero>1</numero>
<fpage>13</fpage>
<lpage>19</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-89092018000100013&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-89092018000100013&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-89092018000100013&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción: El choque séptico es la principal causa de choque en la Unidad de Cuidados Intensivos (62% de todos los casos), su mortalidad es alrededor de 40 a 50%. En los pacientes con choque séptico, la acidosis metabólica es el trastorno ácido-base más común. La estratificación del riesgo en los pacientes críticamente enfermos nos permite identificar pacientes con mayor probabilidad de ser beneficiados con el tratamiento.  Material y métodos:  Se realizó un estudio de cohorte, prospectivo, longitudinal, observacional y analítico. Se incluyeron pacientes con diagnóstico de choque séptico (según las guías de la campaña Sobreviviendo a la Sepsis del año 2016) y acidosis metabólica, ingresados a la Unidad de Cuidados Intensivos en el periodo comprendido entre junio de 2015 y julio de 2017.  Resultados:  Los iones no medidos (RR 2.5, IC 95% 1.03-6.2, p = 0.0001) son predictores independientes de supervivencia al ingreso a la Unidad de Cuidados Intensivos (UCI). Del total de defunciones (n = 28), el número y porcentaje fue diferente entre cada clase: clase I (n = 2, 7%), clase II (n = 6, 21%), clase III (n = 9, 32%) y clase IV (n = 11, 39%).  Conclusión: El objetivo de clasificar a los pacientes con choque séptico y acidosis metabólica a su ingreso es comparar grupos para dirigir el esfuerzo terapéutico de la mejor manera. Los iones no medidos son una buena opción, tienen sustento científico; además, pueden evaluar y clasificar pacientes con choque séptico y acidosis metabólica en hospitales como el nuestro, donde la medición de lactato no se puede realizar. Los resultados adversos son mayores en el choque séptico clase IV (&gt; -9 mEq/L), según los iones no medidos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  Septic shock is the main cause of shock in the intensive care unit (62% of all cases); its mortality is around 40 to 50%. In patients with septic shock, metabolic acidosis is the most common acid-base disorder. Risk stratification in critically ill patients allows us to identify patients who are more likely to benefit from treatment.  Material and methods:  A prospective, longitudinal, observational and analytical cohort study was conducted. Patients diagnosed with septic shock (according to the guidelines of the Surviving Sepsis Campaign 2016) and metabolic acidosis were admitted to the Intensive Care Unit in the period from June 2015 to July 2017.  Results: Unmeasured ions (RR 2.5, 95% CI 1.03-6.2, p = 0.0001) are independent predictors of survival at admission in the Intensive Care Unit (ICU). Of the total number of deaths (n = 28), the number and percentage differed between each class: class I (n = 2, 7%), class II (n = 6, 21%), class III (n = 9, 32%) and class IV (n = 11, 39%).  Conclusion:  The objective of classifying patients with septic shock and metabolic acidosis upon admission is to compare groups to direct the therapeutic effort in the best way. Unmeasured ions are a good choice, have scientific support, and can evaluate and classify patients with septic shock and metabolic acidosis in hospitals such as ours where lactate measurement cannot be performed. Adverse outcomes are higher in class IV (&gt; -9 mEq/L) septic shock according to unmeasured ions.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução:  O Choque séptico é a principal causa de choque na unidade de terapia intensiva (62% dos casos), sua taxa de mortalidade é cerca de 40-50%. Em pacientes com choque séptico a acidose metabólica é a desordem de ácido-base mais comum. A estratificação de risco nos pacientes em estado crítico nos permite identificar pacientes com maior probabilidade de serem beneficiados com o tratamento.  Material e métodos:  Realizou-se um estudo de coorte, prospectivo, longitudinal, observacional e analítico. Foram incluídos pacientes com diagnóstico de choque séptico, de acordo com as diretrizes da Campanha de Sobrevivência a Sepse do ano 2016 e acidose metabólica, admitidos na unidade de terapia intensiva no período de junho de 2015 a julho de 2017.  Resultados:  Os íons não mensuráveis (RR 2.5, IC 95% 1.03-6.2, p = 0.0001), são preditores independentes de sobrevivência na admissão na unidade de terapia intensivos (UTI). Das mortes totais (n = 28), o número e a porcentagem foi diferente entre cada classe: classe I (n = 2, 7%), classe II (n = 6, 21%), classe III (n = 9, 32%) e classe IV (n = 11, 39%).  Conclusão:  O objetivo de classificar os pacientes com choque séptico e acidose metabólica na admissão é comparar os grupos para direcionar o esforço terapêutico da melhor maneira. Os íons não mensuráveis são uma boa escolha, tem apoio científico e podem avaliar e classificar os pacientes com choque séptico e acidose metabólica em hospitais onde a medição do lactato não pode ser realizada. Os resultados adversos são maiores no choque séptico da classe IV (&gt;-9 mEq/L) de acordo aos íons não mensuráveis.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Choque séptico]]></kwd>
<kwd lng="es"><![CDATA[iones no medidos]]></kwd>
<kwd lng="es"><![CDATA[mortalidad]]></kwd>
<kwd lng="es"><![CDATA[Unidad de Cuidados Intensivos]]></kwd>
<kwd lng="en"><![CDATA[Septic shock]]></kwd>
<kwd lng="en"><![CDATA[unmeasured ions]]></kwd>
<kwd lng="en"><![CDATA[mortality]]></kwd>
<kwd lng="en"><![CDATA[intensive care unit]]></kwd>
<kwd lng="pt"><![CDATA[Choque séptico]]></kwd>
<kwd lng="pt"><![CDATA[íons não mensuráveis]]></kwd>
<kwd lng="pt"><![CDATA[mortalidade]]></kwd>
<kwd lng="pt"><![CDATA[unidade de terapia intensiva]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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