CHANGES IN THE CLINICAL AND INSTRUMENTAL PARAMETERS IN PATIENTS WITH MITRAL-STENOSIS FOLLOWING BALLOON CATHETER VALVULOPLASTY

The results of mitral valvuloplasty using a balloon catheter were pres ented for 104 patients with mitral stenosis. Instrumental measurements and clinical symptoms were evaluated before the operation, 6 and 12 m onths after it (62 and 42 patients, respectively). The balloon dilatat ion has increased mitral orifice from 120.5+/-5.8 to 333.88+/-7.45 mm( 2), transmitral diastolic pressure gradient decreased from 22+/-1 to 7 .91+/-0.6 mm Hg. All the patients benefited clinically: cough, blood s pitting, lower limb edemas, protodiastolic murmur disappeared, dyspnea noticeably reduced. NYHA functional class I-II was established in 85% of the patients. The highest effect was achieved in patients with iso lated mitral stenosis.