D. Matthys et al., MEMBRANOUS SUBVALVULAR PULMONARY STENOSIS IN COMPLETE TRANSPOSITION OF THE GREAT-ARTERIES - USEFULNESS OF SERIAL EXERCISE TESTING, Acta cardiologica, 48(4), 1993, pp. 365-368
A 22-year-old male who had Mustard repair for complete transposition p
resented with progressive exercise intolerance, documented by a gradua
l decrease in exercise capacity on cycle ergometer. Cardiac catheteriz
ation and angiography demonstrated subvalvular pulmonary stenosis. Aft
er surgical relief of the obstruction, exercise capacity returned to p
revious level.