Right ventricular outflow tract obstruction indications for surgery

Associate Editor-In-Chief: Varun Kumar, M.B.B.S.

Indications for balloon valvotomy (Do Not Edit)
According to 2008 ACC/AHA guidelines, following are the indications for balloon valvotomy in pulmonary stenosis:

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CLASS I
1.Balloon valvotomy is recommended in adolescent and young adult patients with pulmonic stenosis who have exertional dyspnea, angina, syncope, or presyncope and an RV–to–pulmonary artery peak-to-peak gradient greater than 30 mm Hg at catheterization. (Level of Evidence: C)

2. Balloon valvotomy is recommended in asymptomatic adolescent and young adult patients with pulmonic stenosis and RV–to–pulmonary artery peak-to-peak gradient greater than 40 mm Hg at catheterization. (Level of Evidence: C)

CLASS IIb
1. Balloon valvotomy may be reasonable in asymptomatic adolescent and young adult patients with pulmonic stenosis and an RV–to– pulmonary artery peak-to-peak gradient 30 to 39 mm Hg at catheterization. (Level of Evidence: C)

CLASS III
1. Balloon valvotomy is not recommended in asymptomatic adolescent and young adult patients with pulmonic stenosis and RV–to– pulmonary artery peak-to-peak gradient less than 30 mm Hg at catheterization. (Level of Evidence: C) }}