title: [Surgery of aortic regurgitation with reduced left ventricular function].
abstract: BACKGROUND
  Aortic valve replacement improves clinical symptoms and left ventricular systolic function in patients with chronic aortic regurgitation despite a higher surgical risk. The objective of this study is to determine if left ventricular function will be normalized after surgery.
  
  
  METHODS
  This retrospective study included 40 patients (nine females and 31 males) with chronic aortic regurgitation and left ventricular systolic dysfunction who were evaluated by echocardiography Doppler. Were included patients with left ventricular ejection fraction less or equal to 45%. Ages ranged from 18 to 77 years (mean = 46.4 ± 12.6 years). Preoperatively, six patients (15%) were asymptomatic, ten (25%) were in NYHA II, half (50%) in NYHA III and four (10%) in NYHA IV. The mean preoperative ejection fraction (EF) was 36.2 ± 2%. The mean end systolic and diastolic dimensions were 61.7 ± 8.5 mm and 78.9 ± 9.7 mm respectively. Aortic regurgitation was quantified grade III in sixteen patients (40%) and grade IV in twenty-four (60%).
  
  
  RESULTS
  Thirty-seven patients underwent aortic valve replacement and three Bentall operations. Hospital mortality was 7.5% (3/40). The mean follow-up period was 69.7 months. All survivor patients were investigated. Out of these, five were lost and 32 were controlled. Symptomatic improvement was noted in most of the survivors. Sixty percent (24/40) were severely symptomatic before and only 6.25% (2/32) during follow-up. The ejection fraction increased significantly after surgery (36.2 ± 2% in preoperative period vs. 55.2 ± 10% in postoperative period, P < 0.02). Left ventricular diameters decreased significantly also. Survival rates were 3-year 94%, 5-year 91% and 7-year 89%.
  
  
  CONCLUSIONS
  Despite reduced left ventricular systolic function, aortic valve replacement in chronic aortic regurgitation was associated with acceptable operative risk. Surgery improves functional status, symptoms and ejection fraction in most patients.
authors: Service de chirurgie cardiaque, hôpital militaire d'instruction Mohammed V, Hay Riyad, BB 10100 Rabat, Maroc. aithoussamahdi@yahoo.fr
authors: M
authors: M
authors: Aithoussa
authors: Y
authors: Y
authors: Moutakiallah
authors: A
authors: A
authors: Abdou
authors: M
authors: M
authors: Bamous
authors: F
authors: F
authors: Nya
authors: N
authors: N
authors: Atmani
authors: A
authors: A
authors: Seghrouchni
authors: C
authors: C
authors: Selkane
authors: B
authors: B
authors: Amahzoune
authors: F A
authors: FA
authors: Wahid
authors: Y
authors: Y
authors: Elbekkali
authors: M
authors: M
authors: Drissi
authors: N
authors: N
authors: Berrada
authors: H
authors: H
authors: Azendour
authors: A
authors: A
authors: Boulahya
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001021:Aortic Valve / Q000601:surgery*; D001022:Aortic Valve Insufficiency / Q000150:complications / Q000175:diagnosis / Q000401:mortality / Q000503:physiopathology* / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D019918:Heart Valve Prosthesis Implantation; D017052:Hospital Mortality; D006801:Humans; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D057234:Preoperative Period; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D012720:Severity of Illness Index; D018487:Ventricular Dysfunction, Left / Q000150:complications / Q000175:diagnosis / Q000401:mortality / Q000503:physiopathology / Q000601:surgery*