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Ann Card Anaesth ; 2011 Sept; 14(3): 203-205
Artigo em Inglês | IMSEAR | ID: sea-139610

RESUMO

A patent ductus arteriosus (PDA) is often present in patients undergoing correction of congenital heart disease. It is well appreciated that during cardiopulmonary bypass (CPB), a PDA steals arterial inflow into pulmonary circulation, and may lead to systemic hypoperfusion, excessive pulmonary blood flow (PBF) and distention of the left heart. Therefore, PDA is preferably ligated before initiation of CPB. We describe acute decreases of arterial blood pressure and entropy score with the initiation of CPB and immediate increase in entropy score following the PDA ligation in a child undergoing intracardiac repair of ventricular septal defect and right ventricular infundibular stenosis. The observation strongly indicates that a PDA steals arterial inflow into pulmonary circulation and if the PDA is dissected and ligated on CPB or its ligation on CPB is delayed the cerebral perfusion is potentially compromised.


Assuntos
Ponte Cardiopulmonar , Circulação Cerebrovascular , Pré-Escolar , Permeabilidade do Canal Arterial/fisiopatologia , Permeabilidade do Canal Arterial/cirurgia , Eletroencefalografia , Entropia , Humanos , Ligadura , Circulação Pulmonar
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