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Ann Thorac Surg 2000;70:1308-1312
© 2000 The Society of Thoracic Surgeons

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Original articles: cardiovascular

Efficacy of aprotinin, epsilon aminocaproic acid, or combination in cyanotic heart disease

^a Cardiothoracic Centre, All India Institute of Medical Sciences, New Delhi, India

Address reprint requests to Dr Chauhan, Department of Cardiac Anaesthesia, Cardiothoracic Centre, All India Institute of Medical Sciences, New Delhi 110029, India
e-mail: sancha{at}medinst.ernet.in

Background. Aprotinin and epsilon aminocaproic acid are antifibrinolytic agents used to reduce postoperative blood loss after cardiopulmonary bypass. We compared low dose aprotinin with epsilon aminocaproic acid and a combination of the two agents to reduce postoperative blood loss in infants with congenital cyanotic heart disease undergoing corrective surgical procedures.

Methods. This prospective study was conducted randomly on 300 children. Group I (n = 80) acted as the control and did not receive either of the study drugs. Group II (n = 100) received low dose aprotinin, group III (n = 60) received epsilon aminocaproic acid, and group IV (n = 60) received a combination of the two antifibrinolytic agents.

Results. The control group had the longest time for sternal closure, maximum blood loss at 24 hours, and greatest requirements for packed red blood cells and platelets. Fibrinogen levels were significantly lower, and levels of fibrin breakdown products were significantly higher compared with the groups given either or both of the antifibrinolytics.

Conclusions. Epsilon aminocaproic acid is as efficacious as low dose aprotinin in reducing postoperative blood loss and packed red blood cell and platelet requirements in children with congenital cyanotic heart disease. The combination of the two was slightly more effective.

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