What question did this study set out to answer?

To characterize the postoperative transition from peripheral vasoconstriction to vasodilation and establish standard rewarming timeframes after open-heart surgery.

May 1, 1974ThoraxOpen Access

Peripheral vasoconstriction after open-heart surgery

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Population

148 patients after open-heart surgery

Design

Cohort

Follow-up

Postoperative period (hours)

Authors

HMH R MatthewsHuddersfield Royal Infirmary JMJ. B. MeadeDuke University CEC. C. EvansEssex Cardiothoracic Centre

Discussion

Member takes

Implication

May aid early detection of circulatory insufficiency after open-heart surgery; hypothesis-generating for rewarming nomograms and requires prospective validation.

Key Points

To characterize the postoperative transition from peripheral vasoconstriction to vasodilation and establish standard rewarming timeframes after open-heart surgery.
Monitored serial great toe temperatures postoperatively in 148 open-heart surgery patients.
Analyzed warm-up patterns across 81 normally recovering patients to generate a predictive nomogram based on ventilatory status.
Normal recovery exhibited a highly reproducible warm-up trajectory that was independent of surgical duration, operative type, and other clinical variables.
Identified normal thresholds for reaching a toe temperature of 34°C as within 6.5 hours for spontaneously breathing patients and within 8.0 hours for patients receiving intermittent positive-pressure ventilation.

Structured PICO

Population

148 patients after open-heart surgery

Intervention

Serial recording of great toe temperatures

Outcome

Time to reach a peripherally vasodilated state (toe temperature of 34°C)surrogate

Serial measurement of great toe temperature provides a consistent and predictable pattern of peripheral vasodilation after open-heart surgery, aiding in the early detection of circulatory insufficiency.

Cite This Study

Matthews et al. (1974) studied this question.

synapsesocial.com/papers/6a7161b626a7f98052ddbdcc https://doi.org/10.1136/thx.29.3.338

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Implication

May aid early detection of circulatory insufficiency after open-heart surgery; hypothesis-generating for rewarming nomograms and requires prospective validation.

Peripheral vasoconstriction after open-heart surgery

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Peripheral vasoconstriction after open-heart surgery

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Also Consider