Failure of pulmonary artery banding due to migration of the band.

The value of pulmonary artery banding in relieving symptoms due to large left-to-right shunts in infants has been established by a number of authors (Thompson, Muller, and Dammann, 1958; Dammann, McEachen, Thompson, Smith, and Muller, 1961 ; Therkelsen, Gammelgaard, and Boesen, 1959; Smith and McEachen, 1960; Morrow and Braunwald, 1961 ; Willman, Cooper, Mudd, and Hanlon, 1962; Ochsner, Cooley, McNamara, and Kline, 1962; Craig and Sirak, 1963; Goldblatt, Bernhard, Nadas, and Gross, 1965). In a report of our experience of this procedure (Grainger, Nagle, Pawidapha, Robertson, Taylor, Thornton, Verel, and Zachary, 1967), two patients were found at post-operative catheterization to have hypertensive lungs after apparently satisfactory pulmonary artery banding. The subsequent course of one of these infants is reported in this