Estimation of the right ventricular systolic pressure (RVSP) using echocardiographically derived maximal instantaneous gradient across the ventricular septal defect is a well-utilized tool, which can potentially underestimate the RVSP in patients with conduction abnormalities as such its utility in these patients is questionable.
Keywords: Right bundle branch block; right ventricular systolic pressure; tricuspid regurgitation; ventricular septal defect.
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