摘要：

Results--Percutaneous pulmonary valve implantation was feasible in all 12 patients, with noprocedural complications (procedure time 99 ± 16 minutes, fluoroscopy time 21 ± 6 minutes). Right ventricular outflow tract gradient during catheterization and pulmonary regurgitant fraction onmagnetic resonance imaging fell after valve implantation (gradient 34 ± 6 to 14 ± 3 mm Hg, P < . 01, regurgitant fraction 20% ± 6% to 2% ± 1%, P < .05). After restoration of right ventricular outflow

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