Transcatheter edge-to-edge repair for mitral regurgitation using PASCAL or MitraClip

Ayman Elbadawi1, Alexander T Dang2, Mohamed Hamed3

  • 1Division of Cardiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA.

Abstract

Insights

Mitral valve transcatheter edge-to-edge repair (MTEER) using PASCAL or MitraClip systems shows similar short-term efficacy and safety for mitral regurgitation. Further randomized trials are needed to assess long-term outcomes of these MTEER devices.

Area of Science:

  • Interventional Cardiology
  • Medical Devices
  • Cardiovascular Surgery

Background:

  • Limited comparative data exists for Mitral valve transcatheter edge-to-edge repair (MTEER) devices, specifically the PASCAL and MitraClip systems, in treating mitral regurgitation (MR).
  • Understanding the comparative efficacy and safety profiles of these MTEER systems is crucial for clinical decision-making.

Approach:

  • A comprehensive electronic literature search was performed across MEDLINE, COCHRANE, and EMBASE databases up to February 2023.
  • Six studies encompassing 1581 patients with severe MR were included in a random-effects model meta-analysis.
  • The primary outcome assessed was residual MR ≤ 2 at discharge, with secondary outcomes including procedural success and adverse events.

Key Points:

  • No significant differences were observed in residual MR ≤ 2 at discharge or mid-term follow-up between PASCAL and MitraClip systems.
  • While residual MR ≤ 1 at discharge was similar, the PASCAL system showed a greater incidence of residual MR ≤ 1 at mid-term follow-up.
  • Technical success, procedural success, single leaflet detachment, and all-cause mortality rates were comparable between the two MTEER systems.

Conclusions:

  • The meta-analysis indicates comparable short- and mid-term efficacy and safety between the PASCAL and MitraClip MTEER systems.
  • Randomized controlled trials are necessary to definitively evaluate and compare the long-term clinical outcomes of these leading MTEER devices.

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