J Clin Monit Comput - Hemodynamic management of cardiovascular failure by using PCO(2) venous-arterial difference.

Tópicos

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Resumo

The difference between mixed venous blood carbon dioxide tension (PvCO(2)) and arterial carbon dioxide tension (PaCO(2)), called PCO(2) has been proposed to better characterize the hemodynamic status. It depends on the global carbon dioxide (CO(2)) production, on cardiac output and on the complex relation between CO(2) tension and CO(2) content. The aim of this review is to detail the physiological background allowing adequate interpretation of PCO(2) at the bedside. Clinical and experimental data support the use of PCO(2) as a valuable help in the decision-making process in patients with hemodynamic instability. The difference between central venous CO(2) tension and arterial CO(2) tension, which is easy to obtain can substitute for PCO(2) to assess the adequacy of cardiac output. Differences between local tissue CO(2) tension and arterial CO(2) tension can also be obtained and provide data on the adequacy of local blood flow to the local metabolic conditions.

Resumo Limpo

differ mix venous blood carbon dioxid tension pvco arteri carbon dioxid tension paco call pco propos better character hemodynam status depend global carbon dioxid co product cardiac output complex relat co tension co content aim review detail physiolog background allow adequ interpret pco bedsid clinic experiment data support use pco valuabl help decisionmak process patient hemodynam instabl differ central venous co tension arteri co tension easi obtain can substitut pco assess adequaci cardiac output differ local tissu co tension arteri co tension can also obtain provid data adequaci local blood flow local metabol condit

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