Maeda, Ito, Ishiwari, Tsujimoto, Takagi, Matsumura, Yoshitake, Tokuda, Yamane, & Kunihara (2026). Minimally Invasive Mitral Valve Repair Using the Seamless Patch for Catheter Ablation-Induced Mitral Regurgitation.. The Annals of thoracic surgery.
Maeda, Ito, Ishiwari, Tsujimoto, Takagi, Matsumura, et al. Minimally Invasive Mitral Valve Repair Using the Seamless Patch for Catheter Ablation-Induced Mitral Regurgitation.. The Annals of thoracic surgery. 2026; PMID: 42140536
Maeda, Ito, Ishiwari, et al. Minimally Invasive Mitral Valve Repair Using the Seamless Patch for Catheter Ablation-Induced Mitral Regurgitation.[J]. The Annals of thoracic surgery. 2026.
@article{maeda2026,
author = {Maeda and Ito and Ishiwari and Tsujimoto and Takagi and Matsumura and Yoshitake and Tokuda and Yamane and Kunihara},
title = {Minimally Invasive Mitral Valve Repair Using the Seamless Patch for Catheter Ablation-Induced Mitral Regurgitation.},
journal = {The Annals of thoracic surgery},
year = {2026},
note = {PMID: 42140536},
}
TY - JOUR AU - Maeda AU - Ito AU - Ishiwari AU - Tsujimoto AU - Takagi AU - Matsumura AU - Yoshitake AU - Tokuda AU - Yamane AU - Kunihara TI - Minimally Invasive Mitral Valve Repair Using the Seamless Patch for Catheter Ablation-Induced Mitral Regurgitation. T2 - The Annals of thoracic surgery PY - 2026 AN - PMID:42140536 ER -
Repair of completely lost mitral leaflet segments is technically challenging, particularly via minimally invasive cardiac surgery. We report a case of iatrogenic mitral regurgitation following catheter ablation, successfully treated with minimally invasive mitral valve repair using a seamless patch technique. A 55-year-old man developed severe mitral regurgitation and moderate tricuspid regurgitation after repeated ablations for ventricular tachycardia. Intraoperatively, the P1 leaflet and chordae were completely absent with subannular scarring. Seamless patch reconstruction was performed using glutaraldehyde-treated autologous pericardium recreating a dome-shaped P1 segment, combined with ring annuloplasty. Postoperative recovery was uneventful with normal valve function at 2-year follow-up.