• Between 1959 and 1975 at St. Louis University Medical Center, 71 patients underwent surgery with the Blalock-Hanlon technique. Thirty-nine had simple transposition of the great vessels. The mean age at the time of operation was 3.4 weeks. Sixty-four percent were less than 1 month of age. Eighty-five percent survived the operation. In 11 the Blalock-Hanlon procedure was performed after failure of balloon septostomy. Arterial saturation was increased from a mean of 47% to 73%. There were three late deaths prior to Mustard repair (intra-atrial baffle procedure). Sixteen patients underwent Mustard repair at a mean age of 4 years and a mean follow-up of 2½ years. There were three deaths after surgery and three late deaths after the Mustard procedure. The Blalock-Hanlon procedure achieves prolonged palliation, avoiding an emergency Mustard procedure in infancy with its risk of late vena caval obstruction.
(Arch Surg 110:1387-1390, 1975)
Herrmann V, Laks H, Kaiser GC, Barner HB, Willman VL. The Blalock-Hanlon Procedure: Simple Transposition of the Great Arteries. Arch Surg. 1975;110(11):1387–1390. doi:10.1001/archsurg.1975.01360170127019
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