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[The role of mitral valve balloon valvuloplasty in the treatment of rheumatic mitral valve stenosis during pregnancy].

OBJECTIVE: To analyze the immediate results and the clinical evolution of a group of fertile age women with rheumatic mitral stenosis, in whom percutaneous balloon mitral valvuloplasty was performed before or during pregnancy. PATIENTS AND METHOD: Eighty-one women with mitral stenosis, submitted to balloon mitral vavuloplasty, were studied. They were divided into three groups, according to their desire of no further pregnancies (group A; n = 19), pregnancy during the follow-up (group B; n = 23) or valvuloplasty was performed during pregnancy (group C; n = 39). Patients from group B and C were controlled during pregnancy, childbirth and puerperium, and the newborns of women in group C were followed from birth to the age of 5 years. RESULTS: Mortality in the three groups was null and the incidence of miscarriage was 2 (8.6%) in group B and 3 (9.1%) in group C. Normal delivery was predominant in group B and delivery by caesarean was predominant in group B. Success was immediate in all the cases. The procedure was repeated in 3 women due to restenosis. The media valvar area rase from 0.93 to 2.05 cm2 in group A, from 1.28 to 2.04 cm2 in group B and from 0.84 to 2.14 cm2 in group C (intergroup p = NS). The functional class improved in the three groups of patients. CONCLUSION: Percutaneous balloon mitral valvuloplasty is an effective, efficient method for the treatment of rheumatic mitral stenosis during pregnancy, after organogenesis, or at any time in a woman's life, as long as it is indicated according to clinical and echocardiographic evaluation criteria.

Adult↗

Amounts of coronary arterial narrowing by atherosclerotic plaques in clinically isolated mitral valve stenosis: analysis of 76 necropsy patients older than 30 years.

Although several studies have described the status of the coronary arteries by angiography in patients with mitral stenosis (MS), few necropsy studies of the coronary arteries in these patients are available. The present report describes in detail the amounts of narrowing by atherosclerotic plaque of the 4 major epicardial coronary arteries in 76 necropsy patients, aged 31 to 79 years (mean 53) with clinically isolated MS (with or without associated mitral regurgitation but without aortic valve dysfunction). Of the 76 patients, greater than or equal to 1 major coronary artery was narrowed greater than 75% in cross-sectional area (XSA) in 38 (50%) and in 10 of the 38 patients greater than or equal to 1 major coronary artery was totally occluded or nearly so (greater than 95% XSA narrowing). A higher percent of the 29 men had significant (greater than 75% XSA) coronary narrowing than did the 47 women (62 vs 44%) and the men had more major coronary arteries significantly narrowed compared with the women (31 of 116 arteries [27%] vs 33 of 188 arteries [18%]). The 4 major coronary arteries in the 76 patients were divided into 5-mm segments and examined histologically: of the 3,124 segments (41 per patient), 620 segments (20%) were narrowed 0 to 25% in XSA, 1,826 (58%) were narrowed 26 to 50%, 470 (15%) were narrowed 51 to 75%, 188 (6%) were narrowed 76 to 95%, and 20 segments (1%) were narrowed 96 to 100% in XSA. The percent of segments narrowed greater than 75% in XSA was 9% in the men and 5% in the women.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗

[Evaluation of the degree of mitral valve stenosis by the data of polycardiography and dye dilution technic].

An equation for calculating the mean pressure in the left atrium is suggested. The area of the mitral orifice was calculated according to the Gorlin's equation on the basis of the data of polycardiography and the dye dilution method. The mean pressure in the left atrium was determined in 129 patients with acquired heart failures, the area of the mitral orifice--in 36 patients. A comparison of the calculated values with those obtained by catheterization and at surgery demonstrated their high reliability. The simplicity and safely of the method permit to use it for a dynamic observation aimed at assessing the efficacy of the surgical treatment and for timely diagnosis of possible re-stenosis.

Blood Pressure↗

[Differential diagnosis of late stages of mitral valve stenosis in the aspect of its surgical treatment].

The results of the examination and treatment of 200 patients with the IV and V stages of mitral stenosis were analyzed. Certain major criteria of differential diagnosis of the IV and V stages of the defect were established. Surgical methods for the treatment of patients of the both groups were chosen. The authors consider the most characteristic features of the IV stage to be the following: functions and structure of parenchymatous organs, microcirculation, tissue metabolism. The surgical correction of the defect by the closed and open methods is believed to be possible. Patients with the IV stage of mitral stenosis have profound disturbances of the function and structure of internal organs, microcirculation and tissue metabolism. Correction of the V stage of the defect should be performed only by the closed method.

Adult↗