Muscular Mitral Chord Contribution to Left Ventricular Outflow Tract Obstruction in HOCM

Abstract Papillary muscle anomaly with a muscular chord directly attached to the anterior mitral leaflet is a rare mitral valve disease. A 62-year-old man with systolic anterior motion of the anterior mitral leaflet and hypertrophic obstructive cardiomyopathy presented to surgical intervention after...

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Bibliographic Details
Published in:The Thoracic and cardiovascular surgeon reports 2019-01, Vol.8 (1), p.e18-e19
Main Authors: Ogunmuyiwa, Olayinka, Rellecke, Philipp, Lichtenberg, Artur, Assmann, Alexander
Format: Article
Language:English
Subjects:
Case Report: Cardiac
chordae anomaly
hypertrophic obstructive cardiomyopathy
mitral valve disease
systolic anterior motion
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Summary:Abstract Papillary muscle anomaly with a muscular chord directly attached to the anterior mitral leaflet is a rare mitral valve disease. A 62-year-old man with systolic anterior motion of the anterior mitral leaflet and hypertrophic obstructive cardiomyopathy presented to surgical intervention after unsuccessful transcoronary ablation of septal hypertrophy with alcohol. Intraoperative findings revealed a primarily not detected anomalous muscular mitral chord (0.8 × 2.2 cm) connecting the base of the A1 segment to the anterolateral papillary muscle. Resection of this chord and additional septal myectomy treated systolic anterior motion and obstruction of the outflow tract. In spite of the infrequent occurrence, anomalies of the subvalvular apparatus, such as muscular chords, should be ruled out by thorough transesophageal echocardiography imaging before decision on the therapeutical strategy.
ISSN:2194-7635
2194-7643
DOI:10.1055/s-0039-1692155