Key result
Rewarming to 35.5 C reverses severe fetal bradycardia during maternal cardiopulmonary bypass.
Why the study?
Fetal morbidity and mortality remain high during maternal open heart procedures despite recommended cardiopulmonary bypass strategies, necessitating further reports to elucidate factors causing adverse fetal events.
Population
One 26 year old pregnant female at 18 weeks undergoing aortic valve replacement
Design
Case report
Follow-up
Until delivery at 38 weeks
Authors
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Cardiac surgery during pregnancy carries high fetal risk; level 5 data leave optimal bypass strategies open.
Case Report (n=1)
This case suggests that maintaining maternal temperature at or above 35.5 degrees Celsius during cardiopulmonary bypass may be critical to reversing or preventing fetal bradycardia in pregnant patients undergoing cardiac surgery.
Nadine Kawkabani (2019) conducted a case report in Active endocarditis in pregnancy (n=1). Aortic valve replacement with cardiopulmonary bypass and rewarming to 35.5 degrees Celsius was evaluated on Fetal bradycardia and fetal status. In a pregnant woman undergoing aortic valve replacement, severe fetal bradycardia during cardiopulmonary bypass was only reversed after rewarming the patient to 35.5 degrees Celsius.
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