Long term follow-up of surgical treatment of hypertrophic obstructive cardiomyopathy (HOCM): the role of concomitant cardiac procedures.
BACKGROUND
In patients who underwent transaortic myectomy for hypertrophic obstructive cardiomyopathy (HOCM), we evaluated the role of concomitant procedures for short and long term outcome.


METHODS
From 1985 to 2000, in 125 patients a myectomy according to Morrow was performed. A total of 75 patients (group I) had isolated HOCM: 37 females, 38 males, mean age 52.1 years (14-79). The 50 patients of group II - 22 females, 28 males, mean age 62.4 years (36-77)-had concomitant procedures: coronary artery bypass grafting (36), mitral valve repair (15), DeVega-plasty (1), ventricular septal infarction-closure (1). Follow-up data of a total of 680.9 years (mean 5.4) were analyzed.


RESULTS
Postoperatively, left ventricular outflow tract gradients at rest and after ventricular premature beats were significantly reduced (P<0.001). Mean performance of survivors (112/125=89.6%) improved significantly (P<0.001). Perioperative complication rates: 10.7/12.0% (groups I/II), early lethality: 1.3/2.0%. Survival rates after 5/10 years were 93+/-3/87+/-6 and 80+/-7/80+/-7% for groups I and II, respectively.


CONCLUSIONS
Long term results after surgical treatment of HOCM are convincing also if concomitant procedures are performed.
Department of Thoracic and Cardiovascular Surgery, Heart Center NRW, University of Bochum, Georgstr. 11, 325 45 Bad Oeynhausen, Germany. kminami@hdz-nrw.de
Kazutomo
K
Minami
Dietmar
D
Boethig
Hajo
H
Woltersdorf
Dirk
D
Seifert
Reiner
R
Körfer
D000293:Adolescent; D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D006348:Cardiac Surgical Procedures / Q000379:methods; D002312:Cardiomyopathy, Hypertrophic / Q000150:complications / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000209:etiology / Q000601:surgery; D011183:Postoperative Complications; D015996:Survival Rate; D016896:Treatment Outcome