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Clinical follow-up of patients undergoing percutaneous mitral balloon valvotomy. 1995

I F Palacios, and M E Tuzcu, and A E Weyman, and J B Newell, and P C Block
Department of Medicine (Cardiac Unit), Massachusetts General Hospital, Harvard Medical School, Boston 02114.

BACKGROUND This study is the clinical follow-up (20 +/- 12 months; range, 6 to 49 months) of 327 patients who had percutaneous mitral balloon valvotomy (PMV) at the Massachusetts General Hospital. RESULTS There were seven in-hospital deaths. Patients were divided into two groups according to their echocardiographic score; 211 patients had echocardiographic scores < or = 8 and 116, echocardiographic scores > 8. Patients with echocardiographic scores > 8 were older (64 +/- 11 versus 48 +/- 14 years, P < .01), and more had atrial fibrillation (65% versus 40%, P < .01), calcium under fluoroscopy (81% versus 29%, P < .01), and previous surgical commissurotomy (30% versus 16%, P < .01) than patients with echocardiographic scores < or = 8. With PMV, mitral valve area increased from 1.0 +/- 0.3 to 2.2 +/- 0.8 cm2 in patients with echocardiographic scores < or = 8 and from 0.8 +/- 1 to 1.7 +/- 0.7 cm2 in those with echocardiographic scores > 8. Rates of survival (98 +/- 2% versus 72 +/- 11%), survival with freedom from mitral valve replacement (91 +/- 4% versus 55 +/- 13%), and survival with freedom from combined events (79 +/- 10% versus 39 +/- 18%) at follow-up were greater in patients with echocardiographic scores < or = 8 (P < .00005). Cox regression analysis identified the echocardiographic score as the most important unfavorable intermediate long-term follow-up prediction factor after PMV. CONCLUSIONS The excellent intermediate long-term clinical follow-up of patients with echocardiographic score < or = 8 and no calcified mitral valves suggests that PMV may be the treatment of choice in this group of patients.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D008943 Mitral Valve The valve between the left atrium and left ventricle of the heart. Bicuspid Valve,Bicuspid Valves,Mitral Valves,Valve, Bicuspid,Valve, Mitral,Valves, Bicuspid,Valves, Mitral
D008946 Mitral Valve Stenosis Narrowing of the passage through the MITRAL VALVE due to FIBROSIS, and CALCINOSIS in the leaflets and chordal areas. This elevates the left atrial pressure which, in turn, raises pulmonary venous and capillary pressure leading to bouts of DYSPNEA and TACHYCARDIA during physical exertion. RHEUMATIC FEVER is its primary cause. Mitral Stenosis,Mitral Stenoses,Mitral Valve Stenoses,Stenoses, Mitral,Stenoses, Mitral Valve,Stenosis, Mitral,Stenosis, Mitral Valve,Valve Stenoses, Mitral,Valve Stenosis, Mitral
D002404 Catheterization Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions. Cannulation,Cannulations,Catheterizations
D005260 Female Females
D005500 Follow-Up Studies Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease. Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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