Double-orifice mitral valve with intact atrioventricular septum: An echocardiographic study with anatomic and functional considerations

Bibhuti B. Das, Linda B. Pauliks, Ole A. Knudson, Scott Kirby, Kak Chen Chan, Lilliam Valdes-Cruz, Raul O. Cayre

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

We identified 18 patients with double-orifice mitral valve (DOMV) and intact atrioventricular (AV) septum out of 40,179 echocardiographic studies performed between 1997 and 2002 at Children's Hospital, Denver, CO. In this study we describe (1) the anatomic characteristics of the DOMV in the absence of AV septal defect, (2) the function of the mitral valve by spectral and color Doppler flow mapping, and (3) associated lesions. The topographic location of the orifices in the leaflets suggests possible embryologic mechanisms of DOMV. In this series, DOMV was most commonly associated with left-sided obstructive lesions (in 39% of patients). Spectral and color Doppler interrogation demonstrated a normal flow profile in most cases; only 2 patients had significant mitral regurgitation or stenosis. Therefore, due to the uncertain natural history of this lesion and the potential need for endocarditis prophylaxis, careful imaging of the mitral valve is recommended, particularly in the presence of left-sided obstructive lesions.

Original languageEnglish (US)
Pages (from-to)231-236
Number of pages6
JournalJournal of the American Society of Echocardiography
Volume18
Issue number3
DOIs
StatePublished - Mar 2005

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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