Among 25 consecutive cases having undergone mitral valve surgery between March 1991 and June 1992 in Gill Genera Hospital, 11 patients (44%) who had undergone mitral valve reconstruction using prosthetic rings is evaluated and presented.
Patients' mean age is 43*19 years(range:16~72), and they are consisted with 4 males and 7 females. Mitral valve insufficiency is due to degenerative disease in 6 cases(55%) and rheumatic disease in 5 patients(45%). Carpentier's functional
classification
I is 2 cases, II is 6 cases, and III is 2 cases.
Surgical techniques include prosthetic ring annuloplasty (11 patients, 100%), chorda shortening(6,55%), leaflet mobilization(4,36%), new chorda formation(2,18%), chorda transposition(1,9%) commissurotomy(3,27%), and papillary muscle
splitting(3,27%).
Average number of mitral anatomic lesions per patient are 2.7 and we used average 2.8 procedures upon mitral valve apparatus per patient. There were no surgical mortality and no late valve related admission during the mean follow up period of 17
months.
The mean functional class(NYHA) is 2.81 preoperatively and improved to 10 postoperatively. Doppler echocardiography showed much improvement from grade II MR(1 case), grade III MR (1 case) and 9 cases of grade IV MR to 6 cases of patients showed
no
MR,
only trace MR in 4 cases, and grade II MR was found only in one patient with NYHA functional class II postoperatively. The postoperative mean mitral valve area is 2.10*0.28cm*. We conclude that mitral reconstruction is a predictable and stable
operation. (Korean J Thoracic Cardiovas Surg 1994; 27:191-195)
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