Surgical treatment for aortic regurgitation caused by non-specific aortitis.

Aortic regurgitation caused by non-specific aortitis is relatively rare, and prosthetic valve detachment after aortic valve replacement has been reported to be one of the most serious complications. The authors investigated the surgical results in patients with aortic regurgitation caused by non-specific aortitis. Between 1978 and 1997, 90 patients with aortic regurgitation secondary to non-specific aortitis underwent surgery. There were 28 males and 62 females. The age of these patients ranged from 19 years to 70 years (mean, 48 years). Sixty-five patients were diagnosed to have Takayasu's arteritis, 10 had Behçet's disease and 15 had aortitis of unknown etiology. The surgical procedures for aortic regurgitation were aortic valve replacement in 62 patients, Bentall-type operation in 27 and remodeling in one. Five patients (5.6%) died during the hospital stay. The follow-up duration ranged from 1 month to 224 months (mean, 98 months). Twenty-one patients died during the follow-up period, and the actuarial survival rate was 83% at 5 years and 68% at 10 years. Prosthetic valve detachment occurred in 12 patients (13.3%). Two patients required a re-aortic valve replacement, eight had a composite graft replacement and two patients underwent a homograft reconstruction. Absence of prosthetic valve detachment was noted in 83% of the patients at 5 years and in 75% at 10 years. The incidence of prosthetic valve detachment was 40% (4/10) in patients with Behçet's disease, 33% (5/15) in aortitis of unknown etiology, 4.6% (3/65) in Takayasu's arteritis and 29% (8/28) in male patients. Surgical techniques for treatment of this condition should be modified for further improvement of the surgical outcome in these patients with Behçet's disease and aortitis of unknown etiology.