<?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>0120-3347</journal-id>
<journal-title><![CDATA[Colombian Journal of Anestesiology]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. colomb. anestesiol.]]></abbrev-journal-title>
<issn>0120-3347</issn>
<publisher>
<publisher-name><![CDATA[SCARE-Sociedad Colombiana de Anestesiología y Reanimación]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-33472021000100500</article-id>
<article-id pub-id-type="doi">10.5554/22562087.e928</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Hemodynamic monitoring with two blood gases: "a tool that does not go out of style"]]></article-title>
<article-title xml:lang="es"><![CDATA[Monitoreo hemodinámico con dos gasometrías: "Una herramienta que no pasa de moda"]]></article-title>
</title-group>
<contrib-group>
<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[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[Rivera-Solís]]></surname>
<given-names><![CDATA[Gerardo]]></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[Del-Carpio-Orantes]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Nieto]]></surname>
<given-names><![CDATA[Orlando Rubén]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zamarrón-López]]></surname>
<given-names><![CDATA[Eder Iván]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guerrero-Gutiérrez]]></surname>
<given-names><![CDATA[Manuel Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Monares-Zepeda]]></surname>
<given-names><![CDATA[Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Mexican Social Security Institute  ]]></institution>
<addr-line><![CDATA[Veracruz ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro Médico ABC Anesthesiology ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Mexican Social Security Institute  ]]></institution>
<addr-line><![CDATA[Veracruz ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,San Juan del Río General Hospital Intensive Care Unit ]]></institution>
<addr-line><![CDATA[Querétaro ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Angeles Hospital Intensive Care Unit ]]></institution>
<addr-line><![CDATA[Tampico ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Mexican Social Security Institute National La Raza Medical Center Anesthesiology, General Hospital]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af7">
<institution><![CDATA[,ABC Medical Center Intensive Care ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<volume>49</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-33472021000100500&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-33472021000100500&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-33472021000100500&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Hemodynamic monitoring of a critically ill patient is an indispensable tool both inside and outside intensive care; we currently have invasive, minimally invasive and non-invasive devices; however, no device has been shown to have a positive impact on the patient's evolution; arterial and venous blood gases provide information on the patient's actual microcirculatory and metabolic status and may be a hemodynamic monitoring tool. We aimed to carry out a non-systematic review of the literature of hemodynamic monitoring carried out through the variables obtained in arterial and venous blood gases. A non-systematic review of the literature was performed in the PubMed, OvidSP and ScienceDirect databases with selection of articles from 2000 to 2019. It was found that there are variables obtained in arterial and venous blood gases such as central venous oxygen saturation (SvcO2), venous-to-arterial carbon dioxide pressure (&#916;pv-aCO2), venous-to-arterial carbon dioxide pressure/arteriovenous oxygen content difference (&#916;pv-aCO2/&#916;CavO2) that are related to cellular oxygenation, cardiac output (CO), microcirculatory veno-arterial flow and anaerobic metabolism and allow to assess tissue perfusion status. In conclusion, the variables obtained by arterial and venous blood gases allow for non-invasive, accessible and affordable hemodynamic monitoring that can guide medical decision-making in critically ill patients.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El monitoreo hemodinámico de un paciente en estado crítico es una herramienta indispensable tanto dentro como fuera de la terapia intensiva; actualmente se cuenta con dispositivos invasivos, mínimamente invasivos y no invasivos; sin embargo, ningún dispositivo ha demostrado tener impacto positivo en la evolución del paciente; la gasometría arterial y venosa proporcionan información del estado microcirculatorio y metabólico real del paciente pudiendo ser una herramienta de monitoreo hemodinámico. El objetivo de esta revisión fue realizar una revisión no sistemática de la literatura del monitoreo hemodinámico realizado mediante las variables obtenidas en la gasometría arterial y venosa. Se estudiaron las bases de datos de PubMed, OvidSP y ScienceDirect con selección de artículos del 2000 al 2019. Se encontró que hay variables obtenidas en la gasometría arterial y venosa como la saturación venosa central de oxígeno (SvcO2), la diferencia de presión venoarterial de dióxido de carbono (&#916;pv-aCO2), la diferencia de presión venoarterial de dióxido de carbono/diferencia del contenido arteriovenoso de oxígeno (&#916;pv-aCO2/&#916;Ca-vO2) que están relacionadas con la oxigenación celular, con el gasto cardiaco (GC), con el flujo venoarterial microcirculatorio y con el metabolismo anaerobio que permiten realizar una valoración del estado de perfusión tisular. En conclusión, las variables obtenidas por gasometría arterial y venosa permiten realizar un monitoreo hemodinámico no invasivo, accesible y asequible que pueden guiar la toma de decisiones médicas en el paciente en estado crítico.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Hemodynamic monitoring]]></kwd>
<kwd lng="en"><![CDATA[blood gas]]></kwd>
<kwd lng="en"><![CDATA[cardiac output]]></kwd>
<kwd lng="en"><![CDATA[carbon dioxide]]></kwd>
<kwd lng="en"><![CDATA[microcirculation]]></kwd>
<kwd lng="es"><![CDATA[Monitoreo hemodinámico]]></kwd>
<kwd lng="es"><![CDATA[gasometría]]></kwd>
<kwd lng="es"><![CDATA[gasto cardiaco]]></kwd>
<kwd lng="es"><![CDATA[dióxido de carbono]]></kwd>
<kwd lng="es"><![CDATA[microcirculación]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Saugel]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Malbrain]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
<name>
<surname><![CDATA[Perel]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hemodynamic monitoring in the era of evidence-based medicine]]></article-title>
<source><![CDATA[Crit Care]]></source>
<year>2016</year>
<volume>20</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>401</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ince]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hemodynamic coherence and the rationale for monitoring the microcirculation]]></article-title>
<source><![CDATA[Crit Care]]></source>
<year>2015</year>
<volume>19</volume>
<numero>^s3</numero>
<issue>^s3</issue>
<supplement>3</supplement>
<page-range>S8</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tafner]]></surname>
<given-names><![CDATA[PF]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[FK]]></given-names>
</name>
<name>
<surname><![CDATA[Rabello]]></surname>
<given-names><![CDATA[RF]]></given-names>
</name>
<name>
<surname><![CDATA[Corrêa]]></surname>
<given-names><![CDATA[TD]]></given-names>
</name>
<name>
<surname><![CDATA[Chaves]]></surname>
<given-names><![CDATA[RC]]></given-names>
</name>
<name>
<surname><![CDATA[Serpa]]></surname>
<given-names><![CDATA[AN]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Recent advances in bedside microcirculation assessment in critically ill patients]]></article-title>
<source><![CDATA[Rev Bras Ter Intensiva]]></source>
<year>2017</year>
<volume>29</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>238-47</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Boerma]]></surname>
<given-names><![CDATA[EC]]></given-names>
</name>
<name>
<surname><![CDATA[Dubin]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Bruhn]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Koopmans]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Edul]]></surname>
<given-names><![CDATA[VK]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Severe abnormalities in microvascular perfused vessel density are associated to organ dysfunctions and mortality and can be predicted by hyperlactatemia and norepinephrine requirements in septic shock patients]]></article-title>
<source><![CDATA[Crit Care]]></source>
<year>2013</year>
<volume>28</volume>
<numero>538</numero>
<issue>538</issue>
<page-range>e9-e14</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ospina]]></surname>
<given-names><![CDATA[GA]]></given-names>
</name>
<name>
<surname><![CDATA[Umaña]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Bermúdez]]></surname>
<given-names><![CDATA[WF]]></given-names>
</name>
<name>
<surname><![CDATA[Bautista]]></surname>
<given-names><![CDATA[DF]]></given-names>
</name>
<name>
<surname><![CDATA[Valencia]]></surname>
<given-names><![CDATA[JD]]></given-names>
</name>
<name>
<surname><![CDATA[Madriñán]]></surname>
<given-names><![CDATA[HJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[¿Can venous-to-arterial carbon dioxide differences reflect microcirculatory alterations in patients with septic shock?]]></article-title>
<source><![CDATA[Intensive Care Med]]></source>
<year>2016</year>
<volume>42</volume>
<page-range>211-21</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Varpula]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Tallgren]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Saukkonen]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hemodynamic variables related to outcome in septic shock]]></article-title>
<source><![CDATA[Intensive Care Med]]></source>
<year>2005</year>
<volume>31</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1066-71</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sasko]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Butz]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Prull]]></surname>
<given-names><![CDATA[MW]]></given-names>
</name>
<name>
<surname><![CDATA[Liebeton]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Christ]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Trappe]]></surname>
<given-names><![CDATA[HJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Earliest bedside assessment of hemodynamic parameters and cardiac biomarkers: Their role as predictors of adverse outcome in patients with septic shock]]></article-title>
<source><![CDATA[Int J Med Sci]]></source>
<year>2015</year>
<volume>12</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>680-8</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Velissaris]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Pierrakos]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Scolletta]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Backer]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Vincent]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[High mixed venous oxygen saturation levels do not exclude fluid responsiveness in critically ill septic patients]]></article-title>
<source><![CDATA[Crit Care]]></source>
<year>2011</year>
<volume>15</volume>
<page-range>R177</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bloos]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Reinhart]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Venous oximetry]]></article-title>
<source><![CDATA[Intensive Care Med]]></source>
<year>2005</year>
<volume>31</volume>
<page-range>911-3</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Walley]]></surname>
<given-names><![CDATA[KR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Use of central venous oxygen saturation to guide therapy]]></article-title>
<source><![CDATA[Crit Care Med]]></source>
<year>2011</year>
<volume>184</volume>
<page-range>514-20</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gattinoni]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Vasques]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Camporota]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Meessen]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Romitti]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Pasticci]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Understanding lactatemia in human sepsis. potential impact for early management]]></article-title>
<source><![CDATA[Crit Care Med]]></source>
<year>2019</year>
<volume>200</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>582-9</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Semler]]></surname>
<given-names><![CDATA[MW]]></given-names>
</name>
<name>
<surname><![CDATA[Singer]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Deconstructing hyperlactatemia in sepsis using central venous oxygen saturation and base deficit]]></article-title>
<source><![CDATA[Crit Care Med]]></source>
<year>2019</year>
<volume>200</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>526-7</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gattinoni]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Pesenti]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Matthay]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Understanding blood gas analysis]]></article-title>
<source><![CDATA[Intensive Care Med]]></source>
<year>2018</year>
<volume>44</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>91-3</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[He]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Long]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Tang]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The prognostic value of central venous-to-arterial CO2 difference/arterial-central venous O2 difference ratio in septic shock patients with central venous O2 saturation &gt;80]]></article-title>
<source><![CDATA[Shock]]></source>
<year>2017</year>
<volume>48</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>551-7</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dellinger]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cardiovascular management of septic shock]]></article-title>
<source><![CDATA[Crit Care Med]]></source>
<year>2003</year>
<volume>31</volume>
<page-range>946-55</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Edul]]></surname>
<given-names><![CDATA[VS]]></given-names>
</name>
<name>
<surname><![CDATA[Ince]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Vázquez]]></surname>
<given-names><![CDATA[AR]]></given-names>
</name>
<name>
<surname><![CDATA[Rubatto]]></surname>
<given-names><![CDATA[PN]]></given-names>
</name>
<name>
<surname><![CDATA[Espinoza]]></surname>
<given-names><![CDATA[ED]]></given-names>
</name>
<name>
<surname><![CDATA[Welsh]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[milar microcirculatory alterations in patients with normodynamic and hyperdynamic septic shock]]></article-title>
<source><![CDATA[Ann Am Thorac Soc]]></source>
<year>2016</year>
<volume>13</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>240-7</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tánczos]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Molnár]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The oxygen supply-demand balance: a monitoring challenge]]></article-title>
<source><![CDATA[Best Pract Res Clin Anaesthesiol]]></source>
<year>2013</year>
<volume>27</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>201-7</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lippi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Fontana]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Avanzini]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Sandei]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Ippolito]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of spurious hemolysis on blood gas analysis]]></article-title>
<source><![CDATA[Clin Chem Lab Med]]></source>
<year>2013</year>
<volume>51</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1651-4</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Saludes]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Proença]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Gruartmoner]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Enseñat]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-Madrigal]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Espinal]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Central venous-to-arterial carbon dioxide difference and the effect of venous hyperoxia: A limiting factor, or an additional marker of severity in shock?]]></article-title>
<source><![CDATA[J Clin Monit Comput]]></source>
<year>2017</year>
<volume>31</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1203-11</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ospina]]></surname>
<given-names><![CDATA[GA]]></given-names>
</name>
<name>
<surname><![CDATA[Umaña]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Bermúdez]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Bautista]]></surname>
<given-names><![CDATA[DF]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Bruhn]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Combination of arterial lactate levels and venous-arterial CO2 to arterial-venous O2 content difference ratio as markers of resuscitation in patients with septic shock]]></article-title>
<source><![CDATA[Intensive Care Med]]></source>
<year>2015</year>
<volume>41</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>796-805</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ospina-Tascón]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Madriñán]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Combination of O2 and CO2-derived variables to detect tissue hypoxia in the critically ill patient]]></article-title>
<source><![CDATA[J Thorac Dis]]></source>
<year>2019</year>
<page-range>S1544-50</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mallat]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Vallet]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Difference in venous-arterial carbon dioxide in septic shock]]></article-title>
<source><![CDATA[Minerva Anestesiol]]></source>
<year>2015</year>
<volume>81</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>419-25</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lamia]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Monnet]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Teboul]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Meaning of arterio-venous PCO2 difference in circulatory shoc]]></article-title>
<source><![CDATA[Minerva Anestesiol]]></source>
<year>2006</year>
<volume>72</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>597-604</page-range></nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Diaztagle-Fernández]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez-Murcia]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
<name>
<surname><![CDATA[Sprockel-Díaz]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Venous-to-arterial carbon dioxide difference in the resuscitation of patients with severe sepsis and septic shock: a systematic review]]></article-title>
<source><![CDATA[Med Intensiva]]></source>
<year>2017</year>
<volume>41</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>401-10</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Waldauf P Jiroutkova]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Duska]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Using pCO2 Gap in the differential diagnosis of hyperlactatemia outside the context of sepsis: a physiological review and case series]]></article-title>
<source><![CDATA[Crit Care Res Pract]]></source>
<year>2019</year>
<page-range>5364503</page-range></nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vallet]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Teboul]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Cain]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Curtis]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Venoarterial CO2 difference during regional ischemic or hypoxic hypoxia]]></article-title>
<source><![CDATA[J Appl Physiol]]></source>
<year>2000</year>
<volume>89</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>1317-21</page-range></nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Van Beest]]></surname>
<given-names><![CDATA[PA]]></given-names>
</name>
<name>
<surname><![CDATA[Lont]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
<name>
<surname><![CDATA[Holman]]></surname>
<given-names><![CDATA[ND]]></given-names>
</name>
<name>
<surname><![CDATA[Loef]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Kuiper]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[Boerma]]></surname>
<given-names><![CDATA[EC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Central venous-arterial pCO2 difference as a tool in resuscitation of septic patients]]></article-title>
<source><![CDATA[Intensive Care Med]]></source>
<year>2013</year>
<volume>39</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1034-9</page-range></nlm-citation>
</ref>
<ref id="B28">
<label>28</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[De Backer]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Ospina]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Salgado]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Favory]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Creteur]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Vincent]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Monitoring the microcirculation in the critically ill patient: current methods and future approaches]]></article-title>
<source><![CDATA[Intensive Care Med]]></source>
<year>2010</year>
<volume>36</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1813-25</page-range></nlm-citation>
</ref>
<ref id="B29">
<label>29</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mekontso]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Castelain]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Anguel]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Bahloul]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Schauvliege]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Richard]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Combination of venoarterial PCO2 difference with arteriovenous O2 content difference to detect anaerobic metabolism in patients]]></article-title>
<source><![CDATA[Intensive Care Med]]></source>
<year>2002</year>
<volume>28</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>272-7</page-range></nlm-citation>
</ref>
<ref id="B30">
<label>30</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ospina]]></surname>
<given-names><![CDATA[GA]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Cecconi]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Understanding the venous-arterial CO2 to arterial-venous O2 content difference ratio]]></article-title>
<source><![CDATA[Intensive Care Med]]></source>
<year>2016</year>
<volume>42</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1801-4</page-range></nlm-citation>
</ref>
<ref id="B31">
<label>31</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ospina]]></surname>
<given-names><![CDATA[GA]]></given-names>
</name>
<name>
<surname><![CDATA[Calderón Tapia]]></surname>
<given-names><![CDATA[LE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Venous-arterial CO2 to arterial-venous O2 differences: A physiological meaning debate.]]></article-title>
<source><![CDATA[J Crit Care]]></source>
<year>2018</year>
<volume>48</volume>
<page-range>443-4</page-range></nlm-citation>
</ref>
<ref id="B32">
<label>32</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mallat]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Lemyze]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Tronchon]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Vallet]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The-venin D. Use of venous-to-arterial carbon dioxide tension difference to guide resuscitation therapy in septic shock]]></article-title>
<source><![CDATA[World J Crit Care Med]]></source>
<year>2016</year>
<volume>5</volume>
<page-range>47-56</page-range></nlm-citation>
</ref>
<ref id="B33">
<label>33</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Goldman]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Bateman]]></surname>
<given-names><![CDATA[RM]]></given-names>
</name>
<name>
<surname><![CDATA[Ellis]]></surname>
<given-names><![CDATA[CG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of decreased O2 supply on skeletal muscle oxygenation and O2 consumption during sepsis: role of heterogeneous capillary spacing and blood flow]]></article-title>
<source><![CDATA[Am J Physiol Heart Circ Physiol]]></source>
<year>2016</year>
<volume>290</volume>
<page-range>H2277-85</page-range></nlm-citation>
</ref>
<ref id="B34">
<label>34</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[He]]></surname>
<given-names><![CDATA[HW]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[DW]]></given-names>
</name>
<name>
<surname><![CDATA[Long]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[XT]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[High central venous-to-arterial CO2 difference/ arterial-central venous O2 difference ratio is associated with poor lactate clearance in septic patients after resuscitation]]></article-title>
<source><![CDATA[Crit Care]]></source>
<year>2016</year>
<volume>31</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>76-81</page-range></nlm-citation>
</ref>
<ref id="B35">
<label>35</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[He]]></surname>
<given-names><![CDATA[HW]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[DW]]></given-names>
</name>
<name>
<surname><![CDATA[Ince]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Understanding elevated Pv-aCO2 gap and Pv-aCO2/Ca-vO2 ratio in venous hyperoxia condition]]></article-title>
<source><![CDATA[J Clin Monit Comput]]></source>
<year>2017</year>
<volume>31</volume>
<page-range>1321-3</page-range></nlm-citation>
</ref>
<ref id="B36">
<label>36</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rivera]]></surname>
<given-names><![CDATA[SG]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[DJS]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[REA]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[MRC]]></given-names>
</name>
<name>
<surname><![CDATA[Huanca]]></surname>
<given-names><![CDATA[PJM]]></given-names>
</name>
<name>
<surname><![CDATA[Calyeca]]></surname>
<given-names><![CDATA[SMV]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clasificación clínica de la perfusión tisular en pacientes con choque séptico basada en la saturación venosa central de oxígeno (SvcO2) y la diferencia enoarterial de dióxido de carbono entre el contenido arteriovenoso de oxígeno (&#916;P(v-a) CO2/C(a-v)O2)]]></article-title>
<source><![CDATA[Rev Asoc Mex Med Crit y Ter Int]]></source>
<year>2016</year>
<volume>30</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>283-9</page-range></nlm-citation>
</ref>
<ref id="B37">
<label>37</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pascual]]></surname>
<given-names><![CDATA[ES]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[DJS]]></given-names>
</name>
<name>
<surname><![CDATA[Peniche]]></surname>
<given-names><![CDATA[MKG]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[REA]]></given-names>
</name>
<name>
<surname><![CDATA[Villegas]]></surname>
<given-names><![CDATA[DJE]]></given-names>
</name>
<name>
<surname><![CDATA[Calyeca]]></surname>
<given-names><![CDATA[SMV]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación de la perfusión tisular en pacientes con choque séptico normodinámico versus hiperdinámico]]></article-title>
<source><![CDATA[Rev Asoc Mex Med Crit y Ter Int]]></source>
<year>2018</year>
<volume>32</volume>
<numero>6</numero>
<issue>6</issue>
</nlm-citation>
</ref>
<ref id="B38">
<label>38</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[He]]></surname>
<given-names><![CDATA[HW]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[DW]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Central venous-to-arterial CO2 difference/arterial-central venous O2 difference ratio: An experimental model or a bedside clinical tool?]]></article-title>
<source><![CDATA[Crit Care]]></source>
<year>2016</year>
<volume>35</volume>
<page-range>219-20</page-range></nlm-citation>
</ref>
<ref id="B39">
<label>39</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yuan]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[He]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Long]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Interpretation of venous-to-arterial carbon dioxide difference in the resuscitation of septic shock patients]]></article-title>
<source><![CDATA[J Thorac Dis]]></source>
<year>2019</year>
<page-range>S1538-43</page-range></nlm-citation>
</ref>
<ref id="B40">
<label>40</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gavelli]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Teboul]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Monnet]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[How can CO2-derived indices guide resuscitation in critically ill patients?]]></article-title>
<source><![CDATA[J Thorac Dis]]></source>
<year>2019</year>
<page-range>S1528-37</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
