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(Circulation. 2002;106:I-90.)
© 2002 American Heart Association, Inc.

Surgery for Congenital Heart Disease

Safety of Aprotinin Use and Re-Use in Pediatric Cardiothoracic Surgery

Robert D. B. Jaquiss, MD; Nancy S. Ghanayem, MD; Michael C. Zacharisen, MD; Kathleen A. Mussatto, RN, BSN; James S. Tweddell, MD; S. Bert Litwin, MD

From the Medical College of Wisconsin (R.D.B.J., N.S.G., M.C.Z., J.S.T.), and the Children’s Hospital of Wisconsin (R.D.B.J., N.S.G., M.C.Z., K.A.M., J.S.T., S.B.L.), Milwaukee, Wisc.

Correspondence to Address for correspondence: Robert D. B. Jaquiss, M. D., 9000 W. Wisconsin Avenue, MS 715, Milwaukee, WI 53226. Email rjaquiss{at}chw.org

Abstract

Background Hypersensitivity reactions to aprotinin have been reported in adult cardiac surgical patients undergoing initial and re-exposure to the medication. This study describes the incidence and impact of aprotinin hypersensitivity reactions in children undergoing cardiothoracic surgery.

Methods and Results In this retrospective review of our entire experience with aprotinin (n=865), 681 first exposures, 150 second exposures, and 34 third or higher exposures were examined. Reactions were classified as mild (generalized cutaneous erythema, Type A) or severe (unexplained cardiopulmonary instability after aprotinin exposure, Type B). Records of patients sustaining a reaction were reviewed to assess the impact of the reaction on outcome and to survey reaction management strategies. Reactions occurred in 7 of 681 first exposures (1.0%), of which 2 were Type A and 5 were Type B. In second exposures, there were reactions in 2 of 150 (1.3%), of which both were Type B. In 34 third or higher exposures, there was only 1 reaction (2.9%), which was Type B. Reactions were no more likely on second, third, or higher exposure than on initial exposure. Skin testing had a negative predictive value of 98.9% and a positive predictive value of 20%. Anti-aprotinin IgE was undetectable in 7 of 8 reactor cases tested. No adverse sequelae were attributed to aprotinin reaction.

Conclusions The risk of hypersensitivity reactions to aprotinin is low in children undergoing cardiothoracic surgery, even with multiple exposures to the medication. Reactions are more likely with re-exposure, and risk increases with multiple exposures. Neither skin testing nor assays for IgE identified reactors.

Key Words: heart surgery • heart defects, congenital • drug administration • extracorporeal circulation