Abstract
Haemodinamic instability is frequently observed in children submitted to CPB and is related to CPB duration, reduction of vascular tonus, hypothernua degree, water restriction and myocardial hypofunction. The aim of this study is to observe if endocrine adaptation could promote, to maintain or to increase the shock presented during CPB reperfusion. We studied 37 pat. CA(1-10 years). divided in 3 groups according the necessity of CPB and esophageal temperature during surgical procedure (hypothernua = temp. < 30°C). Blood samples were obtained on basal condition, anesthetic induction, opening thorax, each 30 min. during CPB and 24 h after the end of surgery. The results are showed on table and expressed as mean (SD).
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