What question did this study set out to answer?

To evaluate viscera and peripheral tissue perfusion and oxygenation dynamics in patients undergoing cardiac surgery under systemic hypothermia and cardiopulmonary bypass.

April 1, 1991Perfusion

Visceral and peripheral tissue perfusion during hypothermic cardiac surgery

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Authors

KKKari KuttilaUniversity of Turku MVMika ValtonenTurku University Hospital WKW KostewiczMedical University of Warsaw

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Implication

Physiological study observes preserved visceral perfusion alongside peripheral hypoperfusion during hypothermic cardiopulmonary bypass, highlighting post-rewarming ischemia risks.

Key Points

To evaluate viscera and peripheral tissue perfusion and oxygenation dynamics in patients undergoing cardiac surgery under systemic hypothermia and cardiopulmonary bypass.
Monitored six patients (N=6) undergoing coronary artery bypass grafting with or without aortic valve reconstruction under moderate haemodilution and systemic hypothermia.
Assessed visceral perfusion indirectly by determining gastric intramucosal pH (pHi).
Continuously recorded peripheral perfusion using subcutaneous tissue PO2, laser-Doppler skin red cell flux, transcutaneous PO2, and fingertip temperature.
During deepest hypothermic cardiopulmonary bypass, gastric intramucosal pH, arterial PO2, and transcutaneous PO2 peaked simultaneously with the lowest systemic oxygen utilization.
Subcutaneous PO2, red cell flux, and fingertip temperature decreased markedly during bypass, rebounded during rewarming, and plummeted again following wound closure.
Gastric intramucosal pH and transcutaneous PO2 indices reached their lowest values at the end of surgery, reflecting residual tissue hypoperfusion.

Cite This Study

Kuttila et al. (1991) studied this question.

synapsesocial.com/papers/6a8dabcaa4bc1cf4cf7ab019 https://doi.org/10.1177/026765919100600208

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Implication

Physiological study observes preserved visceral perfusion alongside peripheral hypoperfusion during hypothermic cardiopulmonary bypass, highlighting post-rewarming ischemia risks.

Visceral and peripheral tissue perfusion during hypothermic cardiac surgery

Discussion

Member takes

Implication

Key Points

Cite This Study

Visceral and peripheral tissue perfusion during hypothermic cardiac surgery

Discussion

Member takes

Implication

Key Points

Cite This Study

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