2002
DOI: 10.1590/s0102-86502002000500003
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Gas tonometry for evaluation of gastrointestinal mucosal perfusion: experimental and clinical sepsis¹. part 2

Abstract: Severe sepsis and septic shock are associated with high morbidity and mortality, due to multiple organ dysfunction syndrome. Substantial clinical and animal evidences indicate that the mesenteric circulatory bed, particularly the gut mucosa, is highly vulnerable to reductions in oxygen supply and prone to early injury in the course of hemodynamic changes. We have presented our experience with gas tonometry in experimental models of trauma, shock and complex surgical maneuvers 1 . We also analyzed the concepts … Show more

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Cited by 4 publications
(4 citation statements)
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“…Next issue we will be presenting our experience with gas tonometry in experimental and clinical sepsis. 59 The definitive role of gas tonometry to predict outcome and guide therapy for patients with trauma, sepsis or submitted to complex operations, will be established by large, prospective multicenter trials.…”
Section: Resultsmentioning
confidence: 99%
“…Next issue we will be presenting our experience with gas tonometry in experimental and clinical sepsis. 59 The definitive role of gas tonometry to predict outcome and guide therapy for patients with trauma, sepsis or submitted to complex operations, will be established by large, prospective multicenter trials.…”
Section: Resultsmentioning
confidence: 99%
“…Além disso, a hipercarbia tecidual pode estar associada à hipoxia e ativação do metabolismo anaeróbico. Nesta situação, o aumento dos valores do dióxido de carbono ocorre devido ao tamponamento do excesso dos íons hidrogênio pelo bicarbonato (11,32,38) . Neste estudo, observou-se a redução significativa da oferta esplâncnica de oxigênio durante a fase de reperfusão, com aumento compensatório da TEO 2 intest, mantendo praticamente inalterado o consumo de oxigênio intestinal.…”
Section: Discussionunclassified
“…Além disso, outras causas de hipercarbia sistêmica e acidose metabólica, sem hipoperfusão, podem também alterar o cálculo do pH i , apesar da preservação da perfusão da mucosa intestinal. Devido a estas limitações, optou-se por considerar o D t-a pCO 2 como marcador da perfusão mesentérica, evitando desta forma, os potenciais erros na avaliação perfusional decorrentes do uso do pH i (6,32,38) . �ma das limitações neste protocolo experimental foi o posicionamento da sonda de tonometria no íleo terminal, o que por razões óbvias, não pode ser aplicado na prática clinica.…”
Section: Discussionunclassified
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