QTc on EKG report in EPIC

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Tue, 11/11/2025 - 13:42
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Fiona Lui
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QTc on EKG report in EPIC

Our EPIC Instance reports QTc using Bazett's formula.

Has anyone had success with changing their default QTc formula in EPIC to a different one: Framingham or Fredericcia?

Problem: The Bazett formula is known to overestimate the number of patients with potentially dangerous QT prolongation (overestimates QTc at high HRs, underestimates at low HRs)1. A mean difference of 24 msec between the Bazett and Fridericcia formula (overcorrecting with Bazett) was observed in patients with a heart rate ranging from 80-90 bpm.1

1-Vandenberk B, Vandael E, Robyns T, et al. Which QT Correction Formulae to Use for QT Monitoring? [published correction appears in J Am Heart Assoc. 2018 Aug 21;7(16):e004252. doi: 10.1161/JAHA.117.004252.]. J Am Heart Assoc. 2016;5(6):e003264. Published 2016 Jun 17. doi:10.1161/JAHA.116.003264

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