Membranous subpulmonic stenosis associated with ventricular septal defect and aortic insufficiency

Gary W Raff, J. William Gaynor, Paul M. Weinberg, Thomas L. Spray, Marie Gleason

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


We present a case report of a patient with conal septal hypoplasia (supracristal) ventricular septal defect (VSD) complicated by aortic insufficiency (AI) and subpulmonic stenosis from a fibrous membrane. The development of AI with VSD is a well-recognized problem. However, the association of VSD, AI, and significant right ventricular outflow tract obstruction (RVOTO) is less common. Mechanisms of RVOTO include prolapse of an aortic valve cusp across the VSD, as well as infundibular hypertrophy or muscle bundles. Technical echocardiographic issues can make the diagnosis of VSD, AI, and RVOTO challenging. The presence of a discrete fibrous subpulmonary membrane is uncommon in this setting.

Original languageEnglish (US)
Pages (from-to)58-60
Number of pages3
JournalJournal of the American Society of Echocardiography
Issue number1
StatePublished - Jan 2000
Externally publishedYes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine


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