OBJECTIVES: As we strongly believe that treating the mitral @entity340 is a key feature of @entity1121 ( @entity1121 ), we have systematically corrected both the anterior and posterior leaflet (PL) size and geometry. We have analysed our immediate results and at mid-term follow-up. METHODS: From March 2010 until June 2015, 16 @entity1 with @entity1121 underwent surgical correction of obstruction. The mean age was 51 years old (range, 32-72 years). All were symptomatic being New York Heart Association (NYHA) class 3 (n = 4) or 4 (n = 12). All had systolic anterior motion at echocardiogram with severe @entity339 ( @entity339 ). Intraventricular gradient preoperatively was 73.5 mmHg (range, 50-120 mmHg). All @entity1 underwent a double-stage procedure: first septal resection through (i) the aortic valve and (ii) the detached @entity1347 ( @entity1347 ) of the mitral valve and at second, mitral valve repair by (i) reducing PL height (leaflet resection or artificial neochordae) (ii) increasing @entity1347 height with pericardial patch. RESULTS: There was no in-hospital or late death. All @entity1 were Class 1 NYHA at latest follow-up. Control echocardiography showed no @entity339 , mean rest intraventricular gradient was 15 mmHg (range, 9-18 mmHg). CONCLUSIONS: Our good mid-term results support the concept that @entity1121 is not only a septal disease and that the mitral valve pathology is a key component that should be addressed. For most @entity1 , the ideal surgical treatment should consist in a two-step procedure. It is even necessary to be studied whether treating the mitral valve alone could not suffice.

XXXX : the mitral valve could be the key.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity339 :: ('MESH:D008944', 'Disease') :: ['MR', 'mitral regurgitation'] @entity1347 :: ('MESH:C537775', 'Disease') :: ['AL', 'anterior leaflet'] @entity340 :: ('MESH:D006349', 'Disease') :: ['valve abnormalities'] @entity1121 :: ('MESH:D002312', 'Disease') :: ['HOCM', 'hypertrophic obstructive cardiomyopathy']
@entity1121 :: (MESH:D002312,Disease) :: ['Hypertrophic obstructive cardiomyopathy']
