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Int J Cardiol. 1987 Dec;17(3):303-14.

Percutaneous transluminal balloon pulmonary valvoplasty--long-term results.

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Department of Cardiology, All India Institute of Medical Sciences, New Delhi.


Thirty-two patients with isolated valvar pulmonary stenosis (21 male; 11 female, age range 4 to 53 years, mean 14 years) underwent cardiac catheterization and balloon valvoplasty. Right ventricular systolic pressure before valvoplasty ranged from 65 to 210 mm Hg (mean 120.2 +/- 44.8 mm Hg). It fell to 24-200 mm Hg (mean 73.1 +/- 42.4 mm Hg) immediately after dilation. Peak systolic gradient across the pulmonary valve before valvoplasty ranged from 42 to 193 mm Hg (mean 98 +/- 45.3 mm Hg) and decreased significantly to 5 to 182 mm Hg (mean 52.7 +/- 43.1 mm Hg) immediately after dilation. At repeat cardiac catheterization in 21 patients 3 to 6 months after valvoplasty, a further significant fall of gradient was noted in 15 patients with no change in the remaining six patients. The right ventricular systolic pressure ranged from 30 to 100 mm Hg (mean 55.1 +/- 21.8 mm Hg) while the transpulmonary gradient varied from 12 to 84 mm Hg (mean 34 +/- 23.8 mm Hg). In the four patients evaluated 1 to 1 1/2 years after valvoplasty, the gradient further reduced in 2 patients and was unchanged in the remaining two patients. Patients with isolated valvar pulmonary stenosis can be adequately and safely treated with balloon valvoplasty, without recourse to surgery with excellent immediate and long-term results.

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