Abstract | OBJECTIVE: 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.
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Authors | Domingos 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 |
Journal | Arquivos brasileiros de cardiologia
(Arq Bras Cardiol)
Vol. 82
Issue 3
Pg. 221-7
(Mar 2004)
ISSN: 0066-782X [Print] Brazil |
Vernacular Title | Resultados imediatos e tardios da valvoplastia percutânea com balão na estenose valvar pulmonar. |
PMID | 15073648
(Publication Type: English Abstract, Journal Article)
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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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