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[Short- and long- term results of percutaneous balloon valvuloplasty in pulmonary valve stenosis].

AbstractOBJECTIVE:
To assess the long-term results of percutaneous balloon valvuloplasty at a single institution.
METHODS:
This study comprised 189 patients with pulmonary valve stenosis undergoing percutaneous balloon valvuloplasty from 1984 to 1996, whose mean age was 7.97+/-9.25 years. The procedure was classified as successful when the RV-PA gradient was reduced to levels < 36 mmHg; restenosis was indicated by RV-PA gradients > 36 mmHg after an effective procedure.
RESULTS:
After the procedure, the peak-to-peak transvalvular gradient decreased from 70.12+/-30.06 to 25.11 +/-20.23 mmHg (P<0.001). Immediate success was obtained in 148 (78.72%) patients. A later reduction in the gradient to values < 36 mmHg was obtained in 24 other patients previously categorized as unsuccessful. Therefore, percutaneous balloon valvuloplasty was considered effective in 172 (91.01%) patients. Effectiveness increased to 93.53% (159/170) in the cases of typical morphology. Follow-up ranged from 4.39+/-3 years to 13.01 years. Restenosis was observed in 24 (13.95%) patients. Pulmonary regurgitation was detected in 95.1% of the patients, being more intense than mild in 29.5% of the patients. The probability of maintaining an appropriate result, at any time point, with no restenosis was 92.29% in 2 years, 87.38% in 5 years, 82.46% in 8 years, and 64.48% in 10 years.
CONCLUSION:
Percutaneous balloon valvuloplasty was effective and safe for the treatment of pulmonary valve stenosis with excellent short- and long-term results.
AuthorsDomingos M Hatem, Iran Castro, José Carlos Haertel, Raul I Rossi, Paulo Zielinsky, Flávio C Leboute, Nara Pomar, Maristela Winckler, Rogério N Kersten, Carlos Roberto Cardoso, Carlos A M Gottschall
JournalArquivos brasileiros de cardiologia (Arq Bras Cardiol) Vol. 82 Issue 3 Pg. 221-7 (Mar 2004) ISSN: 0066-782X [Print] Brazil
Vernacular TitleResultados imediatos e tardios da valvoplastia percutânea com balão na estenose valvar pulmonar.
PMID15073648 (Publication Type: English Abstract, Journal Article)
Topics
  • Adolescent
  • Adult
  • Blood Pressure
  • Catheterization (methods)
  • Child
  • Child, Preschool
  • Cohort Studies
  • Echocardiography, Doppler
  • Female
  • Follow-Up Studies
  • Hemodynamics
  • Humans
  • Infant
  • Male
  • Middle Aged
  • Pulmonary Valve Stenosis (therapy)
  • Time Factors
  • Treatment Outcome

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