Key result
Lower nadir bladder temperature during CPB and higher urine volume are linked to post-weaning temperature drops.
Why the study?
Temperature management methods vary among institutions during hypothermic aortic surgery, prompting an evaluation of factors affecting bladder temperature changes after cardiopulmonary bypass weaning.
What factors influence the change in bladder temperature after weaning from cardiopulmonary bypass in patients undergoing aortic aneurysm resection?
Cross-Sectional (n=456)
No
What factors influence the change in bladder temperature after weaning from cardiopulmonary bypass in patients undergoing aortic aneurysm resection?
Absolute Event Rate: 24.2% vs 24.9%
p-value: p=<0.001
Lower minimum temperatures during cardiopulmonary bypass are associated with a decrease in bladder temperature after weaning, and high urine output may lead to overestimation of core temperature during rewarming.
High urine output may overestimate core temperature post-CPB; hypothesis-generating for monitoring adjustments in aortic surgery.
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Tanabe et al. (2024) conducted a cross-sectional in Aortic aneurysm requiring surgery with cardiopulmonary bypass and circulatory arrest (n=456). Decreased bladder temperature after CPB weaning (Group D) vs. Increased bladder temperature after CPB weaning (Group I) was evaluated on Lowest bladder temperature during cardiopulmonary bypass (matched cohort) (p=<0.001). A lower lowest bladder temperature during cardiopulmonary bypass (24.2°C vs 24.9°C) and higher urine volume were significantly associated with a decrease in bladder temperature after weaning from bypass.
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