<?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>0124-8146</journal-id>
<journal-title><![CDATA[Investigaciones Andina]]></journal-title>
<abbrev-journal-title><![CDATA[Investig. andina]]></abbrev-journal-title>
<issn>0124-8146</issn>
<publisher>
<publisher-name><![CDATA[Fundación Universitaria del Área Andina - FUNANDI]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0124-81462016000201697</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[CORTO CIRCUITO PULMONAR, ÍNDICE ARTERIO-ALVEOLAR Y GRADIENTE ALVEOLO-ARTERIAL DE OXÍGENO PREVIA VENTILACIÓN MECÁNICA NO INVASIVA]]></article-title>
<article-title xml:lang="en"><![CDATA[INTRAPULMONARY SHUNT, ALVEOLAR- ARTERIAL INDEX AND ALVEOLAR -ARTERIAL OXYGEN GRADIENT PRIOR NON-INVASIVE MECHANICAL VENTILATION]]></article-title>
<article-title xml:lang="pt"><![CDATA[CURTO CIRCUITO PULMONAR, ÍNDICE ARTÉRIO-ALVEOLAR E GRADIENTE ALVÉOLO-ARTERIAL DE OXIGÊNIO APÓS VENTILAÇÃO MECÂNICA NÃO-INVASIVA]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendieta Izquierdo]]></surname>
<given-names><![CDATA[Giovane]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Muñoz]]></surname>
<given-names><![CDATA[Ana Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romero Díaz]]></surname>
<given-names><![CDATA[Sol Angie]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Militar Nueva Granada  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Escuela Militar de Cadetes General José María Córdova  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Manuela Beltrán  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2016</year>
</pub-date>
<volume>18</volume>
<numero>33</numero>
<fpage>1697</fpage>
<lpage>1708</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0124-81462016000201697&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0124-81462016000201697&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0124-81462016000201697&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo. Describir el comportamiento de gradiente alveolo-arterial oxígeno (Gra-d[A-a]O2), índice arterio-alveolar de oxígeno (Ind[a-A]O2) y corto circuito pulmonar (Qs/Qt) en un grupo de pacientes previa instauración de ventilación mecánica no invasiva -VMNI- en una unidad de cuidado intensivo UCI.  Metodología. Estudio transversal retrospectivo. Calculamos el Grad[A-a]O2) mediante la ecuación: PAO2 = [[(pAtm-pH2O)xFiO2]-(pCO2/RespQ)]-PaO2], para: RespQ = (0,8); (pAtm = 560mmHg para Bogotá, 2640 metros sobre nivel del mar); pH2O = (47mmHg); el (Ind[a-A]O2) y (Qs/Qt) con la fórmula: (Cco2- Cao2)/ (Cco2-Cvo2). Ámbito: Hospital terciario. Pacientes: 16 sujetos de UCI mediante muestra no probabilística consecutiva, que recibieron VMNI en un periodo de medición de 3 meses. Variables de interés principal: diagnóstico, edad, gasometría sanguínea, se calcularon las variables: (Grad [A-a]O2), (Ind[a-A]O2) y (Qs/Qt).  Resultados. El promedio de edad de la población objeto de estudio fue de 59,6; de los cuales el 56% (n=9) fueron mujeres. La VMNI se utilizó en el 14% (n=16) de los pacientes con una población total de 116 en un periodo de tres meses. Los valores gasométricos encontrados (media ± desviación estándar) fueron: (Ind [a-A]O2)= (0,38mmHg ± 0,2mmHg), (Qs/Qt) = (25% ± 8.1%) y (Grad [A-a]O2) = (159mmHg ± 64.1mmHg), FiO2 suministrada de acuerdo a los requerimientos de cada paciente, PaCO2 (42mmhg ± 15mmHg), PaO2/FiO2 = (149 ± 44.2), SvO2 (n=8) = (66,2% ± 9.3%), PH = (7,38 ± 0.1), SaO2 = (92% ± 2.8%), y PaO2 = (70mmHg ± 15.4mmHg).  Conclusiones. Los valores gasométricos (Qs/Qt = &gt;25 ± 8.1%), (Ind[a-A]O2 = &lt; 0,38 ± 0.2mmHg) y (Grad[A-a]O2 = &gt;159 ± 64.1mmHg), identificados en este grupo de pacientes, pueden ser tenidos en cuenta previa instauración de VMNI en sujetos con características similares a una altura de 2.640 metros sobre el nivel del mar.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective. Describe the behavior of the alveolar-arterial oxygen gradient (Grad [Aa] O2), arterial- alveolar oxygen index (Ind [aA] O2) and Intrapulmonary shunt (Qs / Qt) in a patient group prior to ventilation -VMNI- in an intensive care unit -UCI-.  Methodology. Retrospective cross-sectional study. We calculate the Grad[A-a] O2 by the equation: PAO2 = [[(pAtm-pH2O) xFiO2] - (pCO2 / RespQ)] - PaO2], for: Res-pQ = (0,8); (PAtm = 560mmHg for Bogotá, which is 2640 meters above sea level); PH 2 O = (47 mmHg); The (Ind [a-A] O2) and (Qs / Qt) with the formula: (Cco2-Cao2) / (Cco2-Cvo2). Scope: Tertiary Hospital. Patients: 16 ICU subjects using a non-probabilistic consecutive sample, who received NIMV in a 3-month measurement period. Variables of main interest: Diagnosis, age, blood gas analysis, the variables were: (Grad [A-a] O2), (Ind [a-A] O2) and (Qs / Qt).  Results. The mean age of the study population was 59.6; of these, 56% (n = 9) were women. NIMV was used in 14% (n = 16) of patients with a total population of 116 over a three-month period. The gasometric values found were: (Ind [aA] O2) = (0.38mmHg ± 0.2mmHg), (Qs / Qt) = (25% ± 8.1%) and (Grad [Aa] O2), PaO2 42mmHg ± 15mmHg), PaO2 / FiO2 = (149 ± 44.2), SvO2 (n = 8) = (66.2% ±) 9.3%), PH = (7.38 ± 0.1), SaO 2 = (92% ± 2.8%) and PaO 2 (70 mmHg ± 15.4 mmHg).  Conclusions. The gasometric values (Qs / Qt = 25 ± 8.1%), (Ind [aA] O2 = &lt;0.38 ± 0.2 mmHg) and (Grad [Aa] O2 = 159 ± 64.1 MmHg), identified in this group of patients, can be taken into account prior to the onset of NIMV in subjects with similar characteristics at a height of 2,640 meters above sea level.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Objetivo. Descrever o comportamento do gradiente alvéolo-arterial de oxigênio (Grad[A-a]O2), índice artério-alveolar de oxigênio (Ind[a-A]O2) e curto-circuito pulmonar (Qs/Qt) em um grupo de pacientes após a introdução de ventilação mecânica não-invasiva, VMNI, em uma unidade de cuidados intensivos, UCI.  Metodologia. Estudo transversal retrospectivo. Nós calculamos o Grad[A-a]O2) através da equação: PAO2 = [[(pAtm-pH2O)xFiO2]-(pCO2/RespQ)]-PaO2], para: RespQ = (0,8); (pAtm = 560mmHg para Bogotá, 2640 metros acima do nível do mar); pH2O = (47mmHg); o (Ind[a-A]O2) e (Qs/Qt) com a fórmula: (Cco2- Cao2)/ (Cco2- Cvo2). Ámbito: Hospital terciário. Pacientes: 16 sujeitos de UCI mediante amostra não probabilística consecutiva, que receberam VMNI por um período de medição de 3 meses. Variáveis de interesse principal: diagnóstico, idade, gasometria de sangue, as variáveis (Grad [A-a]O2), (Ind[a-A]O2) e (Qs/Qt) foram calculadas.  Resultados. a idade média da população alvo foi de 59,6; 56% (n=9) eram mulheres. VMNI foi usada em 14% (n=16) dos pacientes com uma população total de 116 durante um período de três meses. Foram encontrados os seguintes valores de gasometria (média ± desvio-padrão): (Ind [a-A]O2) = (0,38mmHg ± 0,2mmHg), (Qs/ Qt) = (25% ± 8.1%) e (Grad [A-a]O2) = (159mmHg ± 64.1mmHg), FiO2 fornecida de acordo com os requisitos de cada paciente, PaCO2 (42mmhg ± 15mmHg), PaO2/ FiO2 = (149 ± 44.2), SvO2 (n=8) = (66,2% ± 9.3%), PH = (7,38 ± 0.1), SaO2 = (92% ± 2.8%), e PaO2 = (70mmHg ± 15.4mmHg).  Conclusões. os valores de gasometría (Qs/Qt = &gt;25 ± 8.1%), (Ind[a-A]O2 = &lt; 0,38 ± 0.2mmHg) e (Grad[A-a]O2 = &gt;159 ± 64.1mmHg), identificados neste grupo de pacientes podem ser tomados em consideração após implementação de VMNI em sujeitos com características semelhantes a uma altura de 2.640 metros acima do nível do mar.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[respiración artificial]]></kwd>
<kwd lng="es"><![CDATA[análisis de los gases de la sangre]]></kwd>
<kwd lng="es"><![CDATA[cuidados críticos]]></kwd>
<kwd lng="en"><![CDATA[artificial respiration]]></kwd>
<kwd lng="en"><![CDATA[blood gas analysis]]></kwd>
<kwd lng="en"><![CDATA[critical care]]></kwd>
<kwd lng="pt"><![CDATA[respiração artificial]]></kwd>
<kwd lng="pt"><![CDATA[gasometría de sangue]]></kwd>
<kwd lng="pt"><![CDATA[cuidados críticos]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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