Why the study?
Does valvulotomy by direct pulmonary arterial approach improve the systolic pressure gradient compared to a blind ventricular approach in patients with isolated valvular pulmonic stenosis?
Population
10 patients with isolated valvular pulmonic stenosis
Comparison
Valvulotomy by direct pulmonary arterial approach vs Valvulotomy by blind ventricular approach (n=5)
Design
Cohort
Authors
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Direct pulmonary arterial valvulotomy was associated with superior gradient relief; leaves open whether it should replace transventricular approaches in current practice.
Does valvulotomy by direct pulmonary arterial approach improve the systolic pressure gradient compared to a blind ventricular approach in patients with isolated valvular pulmonic stenosis?
Direct pulmonary arterial valvulotomy provides superior hemodynamic relief of right ventricular outflow tract obstruction compared to the blind ventricular approach in isolated pulmonic stenosis.
Blount et al. (1954) studied this question.
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