Right Ventricular Outflow Tract Obstruction: Transcatheter Correction in Tetralogy of Fallot: A Pilot Study - 28/03/25
, Shubham Tewary, DM a, Debdatta Kar, DM a, Gaurav Lakhani, DM a, Nur Nabab Mollah, DM a, Srirupa Mandal, MD bRésumé |
A total of 35 patients completed the study. Mean age was 19.8 (±4.2) years, with a male-to-female ratio of 4:3. A total of 25 patients had uncorrected TOF, and 10 had undergone intracardiac repair. After the procedure, patients with uncorrected TOF showed a significant increase in oxygen saturation from 84.7% (±1.4%) to 94.6% (±1.2%). Procedural success was 91.4%, with 3 patients experiencing significant restenosis. No procedural complications were observed. There were no arrhythmic events until the first year of follow-up. At 1-year follow-up, the mean RVOT pressure gradient was significantly decreased, and all patients remained symptom-free. In conclusion, combined balloon pulmonic valvuloplasty and conal artery occlusion is a safe and effective method for alleviating RVOT obstruction in patients with TOF, showing promising intermediate-term outcomes with minimal complications.
Le texte complet de cet article est disponible en PDF.Keywords : balloon pulmonic valvuloplasty, conal ablation, right ventricular outflow tract, tetralogy of Fallot, transcatheter correction
Plan
| Funding: none. |
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| This study evaluated the transcatheter approach for relieving right ventricular outflow tract (RVOT) obstruction using combined noncompliant balloon dilatation of the RVOT and conal artery occlusion in patients with tetralogy of Fallot (TOF), uncorrected and after intracardiac repair restenosis. A prospective study was conducted from January 2022 to June 2023, including 40 symptomatic patients aged over 12 years with RVOT obstruction in TOF. The exclusion criteria included moderate to severe pulmonary regurgitation. The procedure involved 2 steps: noncompliant balloon dilatation of the RVOT and conal artery embolization using alcohol or coils or both. Clinical and echocardiographic assessments were performed before the procedure, immediately after the procedure, and at the 1-year follow-up. |
Vol 242
P. 32-36 - mai 2025 Retour au numéro
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