Feasibility and efficacy of mitral valve repair for degenerative mitral regurgitation in the elderly

Takashi Murashita, Yukikatsu Okada, Hideo Kanemitsu, Naoto Fukunaga, Yasunobu Konishi, Ken Nakamura, Tadaaki Koyama

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Purpose: The number of elderly patients who require surgical treatment for mitral regurgitation (MR) is increasing. However, the feasibility and efficacy of mitral valve repair in elderly patients are unclear.

Methods: We retrospectively reviewed 55 patients, aged ≥75 years, who underwent mitral valve repair for degenerative MR between 1991 and 2011. All patients were followed up for 4.7 ± 3.4 years.

Results: The patients aged ≥75 years were more symptomatic and had a higher incidence of persistent atrial fibrillation and pulmonary hypertension than those aged <75 years.

Thirty-day and in-hospital mortality was 1.8% and 7.3%, respectively, and the 5-year survival rate was 81.6% ± 5.8%. The leading cause of late death was stroke, which primarily occurred in patients with postoperative atrial fibrillation. Except for a single failure of repair due to technical reasons, there was no recurrence of severe MR or reoperation on the mitral valve. In the late follow-up period, the mean left ventricular diastolic diameter significantly decreased and the mean left ventricular ejection fraction was approximately 60%. Most patients had mild symptoms at follow-up.

Conclusion: Mitral valve repair can provide satisfactory early as well as long-term outcomes and can preserve left ventricular function even in the elderly.

Original languageEnglish
Pages (from-to)1001-1007
Number of pages7
JournalAnnals of Thoracic and Cardiovascular Surgery
Volume20
Issue number6
DOIs
StatePublished - 2014

Keywords

  • Degenerative mitral regurgitation
  • Elderly
  • Mitral valve repair

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