Percutaneous mitral valvotomy in patients eighteen years old and younger. Immediate and late results

Arq Bras Cardiol. 1999 Oct;73(4):373-81. doi: 10.1590/s0066-782x1999001000005.


OBJECTIVE - To analyze immediate and late results of percutaneous mitral valvotomy (PMV) in patients < or = 18 year. METHODS - Between August '87 and July '97, 48 procedures were performed on 40 patients. The mean age was 15.6 years; 68.7% were females four of whom were pregnant. RESULTS - Success was obtained in 91.7% of the procedures. Immediate complications were severe mitral regurgitation (6.3%) and cardiac tamponade (2.0%). Late follow-up was obtained in 88.8% of the patients (mean value=43.2+/-33.9 months). NYHA functional class (FC) I or II was observed in 96.2% of the patients and restenosis developed in five patients, at a mean follow-up of 29.7+/-11.9 months. Three patients presented with severe mitral insufficiency and underwent surgery. Two patients died. CONCLUSION - PMV represents a valid therapeutic option in young patients. In these patients, maybe because of subclinical rheumatic activity, restenosis may have a higher incidence and occur at an earlier stage than in others persons.

MeSH terms

  • Adolescent
  • Balloon Occlusion*
  • Catheterization*
  • Child
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Mitral Valve Stenosis / etiology
  • Mitral Valve Stenosis / therapy*
  • Pregnancy
  • Rheumatic Heart Disease / complications
  • Severity of Illness Index
  • Treatment Outcome