Clinical Impact of Myocardium at Risk in Transcatheter Aortic Valve Implantation

Cristina Aurigemma1, Giuliano Costa2, Giulia Laterra3

  • 1Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy (C.A., M.L., F. Burzotta).

Insights

In patients undergoing transcatheter aortic valve implantation (TAVI) with coronary artery disease, residual myocardial risk significantly impacts outcomes. A higher residual British Cardiovascular Intervention Society Jeopardy Score (BCIS-JS) after revascularization is linked to increased major adverse events.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Cardiac Surgery

Background:

  • Management of coronary artery disease (CAD) in patients with severe aortic stenosis undergoing transcatheter aortic valve implantation (TAVI) remains a clinical challenge.
  • The impact of residual myocardial risk after revascularization in this patient group requires further investigation.

Purpose of the Study:

  • To investigate the clinical impact of residual myocardial risk, assessed by the British Cardiovascular Intervention Society Jeopardy Score (BCIS-JS), on outcomes in patients undergoing TAVI.

Main Methods:

  • The REVASC-TAVI registry included patients with CAD undergoing TAVI and planned coronary revascularization.
  • Patients were stratified by residual BCIS-JS (rBCIS-JS) into extensive (>4) and non-extensive (≤4) residual myocardial risk groups.
  • The primary endpoint was a composite of all-cause death, myocardial infarction, stroke, and heart failure rehospitalization at 2 years.

Main Results:

  • Among 294 propensity-matched pairs, patients with rBCIS-JS >4 had a higher incidence of the primary endpoint (37.5% vs. 23.0%, P=0.004) at 2 years.
  • Myocardial infarction rates were significantly lower in the rBCIS-JS ≤4 group (2.6% vs. 8.2%, P=0.011).
  • rBCIS-JS >4 independently predicted 2-year major adverse cardiac and cerebrovascular events (HR, 1.43; P=0.005).

Conclusions:

  • Residual myocardial risk significantly influences TAVI outcomes in patients with concomitant CAD and severe aortic stenosis.
  • An rBCIS-JS >4 is associated with increased rates of major adverse cardiac and cerebrovascular events within 2 years post-TAVI.
Abstract

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