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Updated: Aug 27, 2025

A Simplified Stepwise Approach to Echo Guidance during Percutaneous Mitral Valve Repair
Published on: October 16, 2021
Case series of transcatherter edge-to-edge repair using MitraClip™ system with Impella® mechanical circulatory
Shuhei Tanaka1, Teruhiko Imamura1, Nikhil Narang2
1Cardiovascular Center, Toyama University Hospital, Toyama, Japan.
Background:
Secondary mitral regurgitation (SMR) is a major comorbidity in patients with heart failure with reduced ejection fraction (HFrEF). Transcatheter edge-to-edge repair (TEER) using the MitraClip™ system is a promising tool for selected patients with SMR and HFrEF. Durable success using this system in patients who have advanced heart failure and unsuitable anatomy remains a clinical challenge.
Case Summary:
Three patients aged 67-72 years with HFrEF on inotropic support successfully underwent Impella®-assisted TEER at our centre. Following the procedure, two patients were able to be weaned off inotropic support and were discharged, while one patient expired during the index hospitalization.
Discussion:
Impella®-assisted TEER may be a feasible strategy for patients with SMR and HFrEF with unstable haemodynamics particularly when cardiac replacement therapy is not applicable.

