title: Comparison of long-term results of percutaneous mitral balloon valvotomy with closed transventricular mitral commissurotomy at a single North American Institution.
abstract: Long-term (>3 years) follow-up data were obtained from 102 consecutive patients undergoing percutaneous mitral balloon valvotomy (PMBV). Data were collected prospectively by review of the medical record, mailed questionnaire, and/or telephone. Data on patients with closed mitral commissurotomy (CMC) at our institution have been previously reported and serve as the comparison group. Follow-up data was 98% complete at a mean of 57 months for PMBV patients. Compared with patients undergoing CMC, these patients were older (54+/-14 vs 43.6+/-10 years, p <0.001) and more likely to have undergone previous mitral valve surgery (17% vs 4%, p <0.001). The observed 5-year survival in the PMBV group was no different from that observed in the CMC group (83% vs 90%, p = NS) or from that predicted by the model developed from the CMC patients. Commissural calcium was associated with death and death or repeat mitral valve procedure in the multivariate analysis. Long-term survival free from repeat procedures was equivalent when patients with commissural calcium were excluded. Thus, PMBV offers long-term survival and freedom from subsequent mitral valve procedures similar to CMC.
authors.affiliation: Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, Minnesota 55905, USA.
authors.forename: S R
authors.initials: SR
authors.lastname: Ommen
authors.forename: R A
authors.initials: RA
authors.lastname: Nishimura
authors.forename: D E
authors.initials: DE
authors.lastname: Grill
authors.forename: D R
authors.initials: DR
authors.lastname: Holmes
authors.forename: C S
authors.initials: CS
authors.lastname: Rihal
mesh_terms: D000328:Adult; D002404:Catheterization; D002423:Cause of Death; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000601:surgery*; D008946:Mitral Valve Stenosis / Q000401:mortality / Q000628:therapy*; D011183:Postoperative Complications / Q000209:etiology / Q000401:mortality; D012189:Retrospective Studies; D016019:Survival Analysis; D015996:Survival Rate; D013908:Thoracotomy