Left ventricular hypertrophy and remodeling after aortic valve replacement.
Left ventricular geometric remodeling and regression of hypertrophy were assessed after aortic valve replacement with a mechanical prosthesis in 37 patients with aortic stenosis and 39 with aortic insufficiency, aged 54.2 +/- 14.3 and 52.6 +/- 16.6 years, respectively. The follow-up period was 2 years. In patients with aortic insufficiency, ejection fraction increased from 54.4 +/- 3.5 preoperatively to 59.6 +/- 3.4 after 6 months and 61.7 +/- 2.7 after 2 years. In patients with aortic stenosis, ejection fraction increased from 56.6 +/- 5.1 preoperatively to 63.9 +/- 4.4 after 6 months and 71.7 +/- 4.1 after 2 years. Geometric remodeling, regression of hypertrophy, and increased ejection fraction of the left ventricle were similar in both groups at 6 months after surgery, but after 2 years of follow-up, greater improvement was found in patients who had undergone valve replacement for aortic stenosis.
Iyem
Hikmet
H
Cardiovascular Surgery Department, Kent Hospital, Izmir, Turkey. hikmeti@hotmail.com
Sekuri
Cevat
C
Tavli
Mine
M
Büket
Suat
S
D000328:Adult; D000368:Aged; D001022:Aortic Valve Insufficiency / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D001024:Aortic Valve Stenosis / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D005500:Follow-Up Studies; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation; D006801:Humans; D017379:Hypertrophy, Left Ventricular / Q000209:etiology* / Q000503:physiopathology / Q000601:surgery; D008875:Middle Aged; D011446:Prospective Studies; D011474:Prosthesis Design; D020127:Recovery of Function; D013318:Stroke Volume; D013997:Time Factors; D016896:Treatment Outcome; D020257:Ventricular Remodeling