Infundibular “Spasm” Masquerading as Failed Balloon Pulmonary Valvuloplasty in an Infant and its Dramatic Response to Beta Blocker

Authors: Shyamajit Samaddar* , Samir S and Mrigank C

DOI: 10.23880/oajc-16000159

Volume 5, Issue 1

Abstract

A 3-month-old infant with severe valvular PS showed significant dynamic infundibular obstruction which masqueraded as residual PS following Balloon Pulmonary Valvuloplasty (BPV). The obstruction responded dramatically to intravenous metoprolol. Interventionalists should be familiar with this occurrence to avoid damage to pulmonary valve by further balloon dilatation. 

Keywords: Dynamic Infundibular Reaction; Balloon; Annulus Ratio; Metoprolol

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