Right Ventricular Outflow Conduit Stenosis After Childhood Ross-Konno Procedure.

ABSTRACT:

Background

Right ventricle-pulmonary artery (RV-PA) conduit stenosis is a relatively uncommon complication after a childhood Ross-Konno procedure.

Case summary

A man in his 20s presented with progressive dyspnea for 1 year. He had previously undergone modified Konno and Ross-Konno procedures for congenital subaortic stenosis followed by pulmonic balloon valvuloplasty for RV-PA stenosis. Echocardiography demonstrated reduced left ventricular ejection fraction, severe pulmonary hypertension, and right ventricular outflow tract obstruction. Cardiac computed tomography revealed right ventricular outflow/conduit stenosis with calcification. Right heart catheterization showed elevated right ventricular outflow/conduit pressure gradient, confirming severe conduit stenosis. He was r

SUBMITTER: Kattamuri L 

PROVIDER: S-EPMC12273820 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature