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Warm Heart Surgery: A Prospective Comparison Between Normothermic and Tepid Tempurature
Author(s) -
Arom Kit V.,
Emery Robert W.,
Northrup William F.
Publication year - 1995
Publication title -
journal of cardiac surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 58
eISSN - 1540-8191
pISSN - 0886-0440
DOI - 10.1111/j.1540-8191.1995.tb00602.x
Subject(s) - medicine , prospective cohort study , anesthesia , surgery
A bstract Due to concerns about complications from normothermic core temperature during cardiopulmonary bypass, we initiated a prospective randomized study of 200 consecutive patients. In one group (group A), both the heart and the body temperature were kept at 37°C. In the second group (group B), both the body and myocardial temperature were allowed to drift down to 34°C. There were no differences between these two groups in age, sex, preoperative numbers of elective, urgent, emergent, redo patients, or coronary artery bypass (CAB), valve, CAB/valve procedures. Their preoperative neurological, pulmonary, renal, and vascular disease status were similar. Preoperative EF was 53% in group A (100 patients) and 52.5% in group B (100 patients). Group A required more volume (p = 0.001) and had less urine output (p = 0.03) during and post bypass. Group A required more phenylephrine hydrochloride (p = 0.05) and had more difficulty managing blood pressure. Strokes and renal failure necessitating dialysis occurred more often in group A but without statistical significance. More difficulties occurred in the normothermic (37°C) group and cardioprotective effects of warm heart surgery may remain intact at 34°C. Mild “drifted/tepid” hypothermic heart surgery could be a better and safer procedure.