Semi-automated QRS score as a predictor of survival in CRT treated patients with strict left bundle branch block

C. Reitan, U. Chaudhry, B. Atwater, J. Jacobsson, J. P. Couderc, X. Xia, J. Carlson, P. G. Platonov, R. Borgquist

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Cardiac Resynchronization Therapy (CRT) is widely used for treating selected heart failure patients, but patients with myocardial scar respond worse to treatment. The Selvester QRS scoring system estimates myocardial scar burden using 12-lead ECG. This study's objective was to investigate the scores correlation to mortality in a CRT population. Methods and results: Data on consecutive CRT patients was collected. 401 patients with LBBB and available ECG data were included in the study. QuAReSS software was used to perform Selvester scoring. Mean Selvester score was 6.4, corresponding to 19% scar burden. The endpoint was death or heart transplant; outcome was analyzed using Cox proportional hazards models. A Selvester score >. 8 was significantly associated with higher risk of the combined endpoint (HR 1.59, p = .014, CI 1.09-2.3). Conclusion: Higher Selvester scores correlate to mortality in CRT patients with strict LBBB and might be of value in prognosticating survival.

Original languageEnglish
Pages (from-to)282-287
JournalJournal of Electrocardiology
Volume51
Issue number2
Early online date2017
DOIs
Publication statusPublished - 2018 Mar

Subject classification (UKÄ)

  • Cardiac and Cardiovascular Systems

Free keywords

  • Cardiac Resynchronization Therapy
  • Electrocardiogram
  • Left bundle branch block
  • Long-term outcome
  • Selvester QRS score

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