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(Circulation. 1957;15:814.)
© 1957 American Heart Association, Inc.

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Valvular Pulmonary Stenosis with Intact Ventricular Septum

Clinical and Physiologic Response to Open Valvuloplasty

S. GILBERT BLOUNT JR. M.D.¹; JACK VAN ELK M.D.¹; OSCAR J. BALCHUM M.D., PH.D.¹; HENRY SWAN M.D.¹

¹ From the Departments of Medicine and Surgery, University of Colorado School of Medicine, Denver, Colo.

Clinical and physiologic studies have been carried out in 25 patients following surgical correction of congenital valvular pulmonary stenosis. The patients were operated upon under conditions of hypothermia and circulatory occlusion and the approach to the valve was transarterial, permitting plastic repair of the stenotic pulmonary valve with unimpaired vision and a dry operative field. The systolic pressure gradient between the right ventricle and the pulmonary artery has been completely abolished in 17 of the 25 patients. The results as reported in this series are considered to be superior to those obtained with the blind transventricular approach and the operative mortality certainly compares favorably with the transventricular approach.