MitraClip Implantation as a New Treatment Strategy against Systolic Anterior Motion-induced Outflow Tract Obstruction in Hypertrophic Obstructive Cardiomyopathy

We report on catheter-based treatment of left ventricular outflow tract (LVOT) obstruction targeting primarily a systolic anterior motion of the anterior mitral leaflet in hypertrophic obstructive cardiomyopathy (HOCM). A patient was successfully treated with the MitraClip two years after septal mye...

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Bibliographic Details
Published in:Heart, lung & circulation lung & circulation, 2014-05, Vol.23 (5), p.e131-e135
Main Authors: Schäfer, Ulrich, MD, Kreidel, Felix, MD, Frerker, Christian, MD
Format: Article
Language:English
Subjects:
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Cardiac Surgical Procedures - methods
Cardiomyopathy, Hypertrophic - diagnostic imaging
Cardiomyopathy, Hypertrophic - surgery
Cardiovascular
Haemodynamics
Humans
Hypertrophic obstructive cardiomyopathy
Male
MitraClip
Outflow tract obstruction
Systolic anterior motion
Ultrasonography
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Summary:We report on catheter-based treatment of left ventricular outflow tract (LVOT) obstruction targeting primarily a systolic anterior motion of the anterior mitral leaflet in hypertrophic obstructive cardiomyopathy (HOCM). A patient was successfully treated with the MitraClip two years after septal myectomy in conjunction with mitral valve repair. The results prove the concept, that systolic anterior motion (SAM) is clearly involved in gradient formation and is more than an epiphenomenon in HOCM. Thus, SAM-induced subaortic obstruction might be a target for MitraClip implantation.
ISSN:1443-9506
1444-2892
DOI:10.1016/j.hlc.2014.01.007