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 SM ISO690:2012POTTECHER, Julien, BELÎI, Adrian, HUNTZINGER, Julien, CHAUSSERET, Laurence, SOLTNER, Christophe, BEYDON, Laurent. Arteriovenous difference in O2 content, pulmonary venous O2 saturation, cardiac index: Are they equivalent in cardiac surgery? In: Annales Francaises d'Anesthesie et de Reanimation, 2008, vol. 27, pp. 957-961. ISSN 0750-7658. DOI: https://doi.org/10.1016/j.annfar.2008.09.021 |
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 Annales Francaises d'Anesthesie et de Reanimation |
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| Volumul 27 / 2008 / ISSN 0750-7658 /ISSNe 1769-6623 | ||||||
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| DOI:https://doi.org/10.1016/j.annfar.2008.09.021 | ||||||
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Objective: To study the concordance of cardiac index (CI), mixed venous oxygen saturation (SvO2) and the arterial-mixed venous O2 content difference, i.e.: C(a-v)O2, postoperatively to cardiac surgery. We hypothesized that significant discrepancies would be measurable between C(a-v)O2 and SvO2, and CI, because the latter two indices encompass less metabolic components than the former. Design: Analysis of variables collected as part of routine care. Patients: Eighty anesthetized patients receiving mechanical ventilation after heart surgery. Measurements and results: Using linear regression of SvO2 versus C(a-v)O2 (Reg 1) and CI versus C(a-v)O2 (Reg 2), respectively we found that CI = 2.2 L min-1 m-2 and SvO2 = 70% were equivalent to C(a-v)O2 = 5 ml/100 ml. The error reflected by the vertical scatter of points around the regression line, once normalized was 3.24 times greater in Reg 2 than in Reg 1. Conclusions: The correspondence of CI, SvO2 and C(a-v)O2 values observed in a population of patients studied immediately after scheduled heart surgery match those reported in critically ill patients. SvO2 and furthermore CI induced a sizeable scatter of points around regression line. Accordingly, they appear as a lesser estimate of the flow/metabolism balance that may at best be inferred from C(a-v)O2. |
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| Cuvinte-cheie Cardiac Surgical Procedures, Catheterization, Critical care, Investigative, monitoring, Physiologic, postoperative period, Swan-Ganz, techniques, Cathe´te´risation, Swan-Ganz, Monitorage, He´modynamique, Chirurgie cardiaque |
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<?xml version='1.0' encoding='utf-8'?> <resource xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns='http://datacite.org/schema/kernel-3' xsi:schemaLocation='http://datacite.org/schema/kernel-3 http://schema.datacite.org/meta/kernel-3/metadata.xsd'> <identifier identifierType='DOI'>10.1016/j.annfar.2008.09.021</identifier> <creators> <creator> <creatorName>Pottecher, J.</creatorName> <affiliation>Centru de anestezie-resuscitare, Spitalul Universitar Angers, Franţa</affiliation> </creator> <creator> <creatorName>Belîi, A.L.</creatorName> <affiliation>IMSP Spitalul Clinic Municipal "Gheorghe Paladi", Moldova, Republica</affiliation> </creator> <creator> <creatorName>Huntzinger, J.</creatorName> <affiliation>Centru de anestezie-resuscitare, Spitalul Universitar Angers, Franţa</affiliation> </creator> <creator> <creatorName>Chausseret, L.</creatorName> <affiliation>Centru de anestezie-resuscitare, Spitalul Universitar Angers, Franţa</affiliation> </creator> <creator> <creatorName>Soltner, C.</creatorName> <affiliation>Centru de anestezie-resuscitare, Spitalul Universitar Angers, Franţa</affiliation> </creator> <creator> <creatorName>Beydon, L.</creatorName> <affiliation>Centru de anestezie-resuscitare, Spitalul Universitar Angers, Franţa</affiliation> </creator> </creators> <titles> <title xml:lang='en'>Arteriovenous difference in O2 content, pulmonary venous O2 saturation, cardiac index: Are they equivalent in cardiac surgery?</title> </titles> <publisher>Instrumentul Bibliometric National</publisher> <publicationYear>2008</publicationYear> <relatedIdentifier relatedIdentifierType='ISSN' relationType='IsPartOf'>0750-7658</relatedIdentifier> <subjects> <subject>Cardiac Surgical Procedures</subject> <subject>Catheterization</subject> <subject>Critical care</subject> <subject>Investigative</subject> <subject>monitoring</subject> <subject>Physiologic</subject> <subject>postoperative period</subject> <subject>Swan-Ganz</subject> <subject>techniques</subject> <subject>Cathe´te´risation</subject> <subject>Swan-Ganz</subject> <subject>Monitorage</subject> <subject>He´modynamique</subject> <subject>Chirurgie cardiaque</subject> </subjects> <dates> <date dateType='Issued'>2008-11-01</date> </dates> <resourceType resourceTypeGeneral='Text'>Journal article</resourceType> <descriptions> <description xml:lang='en' descriptionType='Abstract'><p> </p><p>Objective: To study the concordance of cardiac index (CI), mixed venous oxygen saturation (SvO<sub>2</sub>) and the arterial-mixed venous O<sub>2</sub> content difference, i.e.: C(a-v)O<sub>2</sub>, postoperatively to cardiac surgery. We hypothesized that significant discrepancies would be measurable between C(a-v)O<sub>2</sub> and SvO<sub>2</sub>, and CI, because the latter two indices encompass less metabolic components than the former. Design: Analysis of variables collected as part of routine care. Patients: Eighty anesthetized patients receiving mechanical ventilation after heart surgery. Measurements and results: Using linear regression of SvO<sub>2</sub> versus C(a-v)O<sub>2</sub> (Reg 1) and CI versus C(a-v)O<sub>2</sub> (Reg 2), respectively we found that CI = 2.2 L min<sup>-1</sup> m<sup>-2</sup> and SvO<sub>2</sub> = 70% were equivalent to C(a-v)O<sub>2</sub> = 5 ml/100 ml. The error reflected by the vertical scatter of points around the regression line, once normalized was 3.24 times greater in Reg 2 than in Reg 1. Conclusions: The correspondence of CI, SvO<sub>2</sub> and C(a-v)O<sub>2</sub> values observed in a population of patients studied immediately after scheduled heart surgery match those reported in critically ill patients. SvO<sub>2</sub> and furthermore CI induced a sizeable scatter of points around regression line. Accordingly, they appear as a lesser estimate of the flow/metabolism balance that may at best be inferred from C(a-v)O<sub>2</sub>.</p></description> <description xml:lang='fr' descriptionType='Abstract'><p>Objectif. – E´ valuer la concordance de l’index cardiaque (IC), du sang veineux meˆle´ (SvO2) et de la diffe´rence arte´rioveineuse de contenu en O2 – C(a–v)O2 – en chirurgie cardiaque. SvO2 et IC devraient induire une quantite´ d’incertitude croissante par rapport a` C(a–v)O2 dans la mesure ou` ils ne prennent en compte que partiellement ou pas du tout la composante me´tabolique. Type d’e´tude. – Analyse de variables collecte´es en routine. Patients. – Quatre-vingts patients anesthe´sie´s et ventile´s, en postope´ratoire de chirurgie cardiaque. Me´thodes. – Re´alisation simultane´e d’un point he´modynamique par Swan-Ganz (SG) a` de´bit continu et un gaz du sang arte´riel et veineux meˆle´, en situation stable. Re´sultats. – Par deux re´gressions line´aires : SvO2 versus C(a–v)O2 (Reg 1) et IC versus C(a–v)O2 (Reg 2), nous montrons qu’un IC = 2,2 l/min/m2 et une SvO2 = 70 % correspondaient a` une C(a–v)O2 = 5 ml/100 ml. La dispersion, identifie´e par la distribution verticale des points autour de la ligne de re´gression, une fois normalise´e, e´tait 3,2 fois plus grande dans Reg 2 que dans Reg 1. Conclusions. – La correspondance des valeurs d’IC, de SvO2 et de C(a–v)O2 en chirurgie cardiaque est identique a` celles pre´sente´es dans la litte´rature chez les patients de re´animation polyvalente. SvO2 et surtout IC induisent une dispersion tangible des valeurs diminuant leur capacite´ a` e´valuer le ratio de´bit/me´tabolisme qui est au mieux appre´cie´ par C(a–v)O2. # 2008 Elsevier Masson SAS. Tous droits re´serve´s.</p></description> </descriptions> <formats> <format>application/pdf</format> </formats> </resource>
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