PMID- 26792931 OWN - NLM STAT- MEDLINE DCOM- 20170321 LR - 20220409 IS - 1873-734X (Electronic) IS - 1010-7940 (Linking) VI - 50 IP - 1 DP - 2016 Jul TI - Hypertrophic obstructive cardiomyopathy: the mitral valve could be the key. PG - 61-5 LID - 10.1093/ejcts/ezv473 [doi] AB - OBJECTIVES: As we strongly believe that treating the mitral valve abnormalities is a key feature of hypertrophic obstructive cardiomyopathy (HOCM), 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 patients with HOCM 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 mitral regurgitation (MR). Intraventricular gradient preoperatively was 73.5 mmHg (range, 50-120 mmHg). All patients underwent a double-stage procedure: first septal resection through (i) the aortic valve and (ii) the detached anterior leaflet (AL) of the mitral valve and at second, mitral valve repair by (i) reducing PL height (leaflet resection or artificial neochordae) (ii) increasing AL height with pericardial patch. RESULTS: There was no in-hospital or late death. All patients were Class 1 NYHA at latest follow-up. Control echocardiography showed no MR, mean rest intraventricular gradient was 15 mmHg (range, 9-18 mmHg). CONCLUSIONS: Our good mid-term results support the concept that HOCM is not only a septal disease and that the mitral valve pathology is a key component that should be addressed. For most patients, 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. CI - (c) The Author 2016. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved. FAU - Dulguerov, Filip AU - Dulguerov F AD - Cardiothoracic Center of Monaco, Monaco Cedex, Monaco. FAU - Marcacci, Cecilia AU - Marcacci C AD - Cardiothoracic Center of Monaco, Monaco Cedex, Monaco. FAU - Alexandrescu, Clara AU - Alexandrescu C AD - Cardiothoracic Center of Monaco, Monaco Cedex, Monaco. FAU - Chan, K M John AU - Chan KM AD - Cardiothoracic Center of Monaco, Monaco Cedex, Monaco National Heart and Lung Institute, Imperial College London, London, UK Sarawak General Hospital Heart Center, Kuching, Sarawak, Malaysia. FAU - Dreyfus, Gilles D AU - Dreyfus GD AD - Cardiothoracic Center of Monaco, Monaco Cedex, Monaco National Heart and Lung Institute, Imperial College London, London, UK gdreyfus@ccm.mc. LA - eng PT - Journal Article DEP - 20160119 PL - Germany TA - Eur J Cardiothorac Surg JT - European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery JID - 8804069 SB - IM MH - Adult MH - Aftercare MH - Aged MH - Cardiomyopathy, Hypertrophic/diagnosis/*etiology/surgery MH - Coronary Artery Bypass/methods MH - Echocardiography MH - Female MH - Humans MH - Length of Stay MH - Magnetic Resonance Angiography MH - Male MH - Middle Aged MH - Mitral Valve Insufficiency/*complications/diagnosis/surgery MH - Treatment Outcome OTO - NOTNLM OT - Aortic approach OT - Extensive myectomy OT - Hypertrophic obstructive cardiomyopathy OT - Mitral approach OT - Mitral valve repair OT - Systolic anterior motion EDAT- 2016/01/23 06:00 MHDA- 2017/03/23 06:00 CRDT- 2016/01/22 06:00 PHST- 2015/10/11 00:00 [received] PHST- 2015/12/04 00:00 [accepted] PHST- 2016/01/22 06:00 [entrez] PHST- 2016/01/23 06:00 [pubmed] PHST- 2017/03/23 06:00 [medline] AID - ezv473 [pii] AID - 10.1093/ejcts/ezv473 [doi] PST - ppublish SO - Eur J Cardiothorac Surg. 2016 Jul;50(1):61-5. doi: 10.1093/ejcts/ezv473. Epub 2016 Jan 19.