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Updated: May 16, 2026

Fully Endoscopic Mitral Valve Repair with Percutaneous Cannulation of Groin Vessels
Published on: May 26, 2023
One-knot technique: a simple modification of the loop technique for mitral valve repair
Taichi Sakaguchi1, Hiroyuki Nishi, Shigeru Miyagawa
1Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka (E1), Suita, Osaka 565-0871, Japan. ts472@tuba.ocn.ne.jp
Abstract:
We herein describe a simple method for the fine length adjustment of expanded polytetrafluoroethylene (e-PTFE) using the loop technique for mitral valve repair. The loops are temporarily anchored to the mitral leaflet with a second e-PTFE suture by tying only once (one-knot technique). This anchor suture can be easily removed and repositioned if necessary. We believe that this simple technique allows for the more precise and reproducible repair of mitral valve prolapse.
