Incidence and Outcomes of Acute Coronary Syndrome After Transcatheter Aortic Valve Replacement

  • Amgad Mentias
  • , Milind Y. Desai
  • , Marwan Saad
  • , Phillip A. Horwitz
  • , James D. Rossen
  • , Sidakpal Panaich
  • , Ayman Elbadawi
  • , J. Dawn Abbott
  • , Paul Sorajja
  • , Hani Jneid
  • , E. Murat Tuzcu
  • , Samir Kapadia
  • , Mary Vaughan-Sarrazin

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

Objectives: This study sought to address a knowledge gap by examining the incidence, timing, and predictors of acute coronary syndrome (ACS) after transcatheter aortic valve replacement (TAVR) in Medicare beneficiaries. Background: Evidence about incidence and outcomes of ACS after TAVR is scarce. Methods: We identified Medicare patients who underwent TAVR from 2012 to 2017 and were admitted with ACS during follow-up. We compared outcomes based on the type of ACS: ST-segment elevation myocardial infarction (STEMI), non-STEMI (NSTEMI), and unstable angina. In patients with non–ST-segment elevation ACS, we compared outcomes based on the treatment strategy (invasive vs. conservative) using inverse probability weighting analysis. Results: Out of 142,845 patients with TAVR, 6,741 patients (4.7%) were admitted with ACS after a median time of 297 days (interquartile range: 85 to 662 days), with 48% of admissions occurring within 6 months. The most common presentation was NSTEMI. Predictors of ACS were history of coronary artery disease, prior revascularization, diabetes, valve-in-TAVR, and acute kidney injury. STEMI was associated with higher 30-day and 1-year mortality compared with NSTEMI (31.4% vs. 15.5% and 51.2% vs. 41.3%, respectively; p < 0.01). Overall, 30.3% of patients with non–ST-segment elevation ACS were treated with invasive approach. On inverse probability weighting analysis, invasive approach was associated with lower adjusted long-term mortality (adjusted hazard ratio: 0.69; 95% confidence interval: 0.66 to 0.73; p < 0.01) and higher risk of repeat revascularization (adjusted hazard ratio: 1.29; 95% confidence interval: 1.16 to 1.43; p < 0.001). Conclusions: After TAVR, ACS is infrequent (<5%), and the most common presentation is NSTEMI. Occurrence of STEMI after TAVR is associated with a high mortality with nearly one-third of patients dying within 30 days. Optimization of care is needed for post-TAVR ACS patients and if feasible, invasive approach should be considered in these high-risk patients.

Original languageEnglish (US)
Pages (from-to)938-950
Number of pages13
JournalJACC: Cardiovascular Interventions
Volume13
Issue number8
DOIs
StatePublished - Apr 27 2020

Keywords

  • acute coronary syndrome
  • percutaneous coronary intervention
  • transcatheter aortic valve replacement

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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