Accuracy of methods for diagnosing atrial fibrillation using 12-lead ECG: A systematic review and meta-analysis.

Abstract:

BACKGROUND:Screening for atrial fibrillation (AF) using 12-lead-electrocardiograms (ECGs) has been recommended; however, the best method for interpreting ECGs to diagnose AF is not known. We compared accuracy of methods for diagnosing AF from ECGs. METHODS:We searched MEDLINE, EMBASE, CINAHL and LILACS until March 24, 2014. Two reviewers identified eligible studies, extracted data and appraised quality using the QUADAS-2 instrument. Meta-analysis, using the bivariate hierarchical random effects method, determined average operating points for sensitivities, specificities, positive and negative likelihood ratios (PLR, NLR) and enabled construction of Summary Receiver Operating Characteristic (SROC) plots. RESULTS:10 studies investigated 16 methods for interpreting ECGs (n=55,376 participant ECGs). The sensitivity and specificity of automated software (8 studies; 9 methods) were 0.89 (95% C.I. 0.82-0.93) and 0.99 (95% C.I. 0.99-0.99), respectively; PLR 96.6 (95% C.I. 64.2-145.6); NLR 0.11 (95% C.I. 0.07-0.18). Indirect comparisons with software found healthcare professionals (5 studies; 7 methods) had similar sensitivity for diagnosing AF but lower specificity [sensitivity 0.92 (95% C.I. 0.81-0.97), specificity 0.93 (95% C.I. 0.76-0.98), PLR 13.9 (95% C.I. 3.5-55.3), NLR 0.09 (95% C.I. 0.03-0.22)]. Sub-group analyses of primary care professionals found greater specificity for GPs than nurses [GPs: sensitivity 0.91 (95% C.I. 0.68-1.00); specificity 0.96 (95% C.I. 0.89-1.00). Nurses: sensitivity 0.88 (95% C.I. 0.63-1.00); specificity 0.85 (95% C.I. 0.83-0.87)]. CONCLUSIONS:Automated ECG-interpreting software most accurately excluded AF, although its ability to diagnose this was similar to all healthcare professionals. Within primary care, the specificity of AF diagnosis from ECG was greater for GPs than nurses.

journal_name

Int J Cardiol

authors

Taggar JS,Coleman T,Lewis S,Heneghan C,Jones M

doi

10.1016/j.ijcard.2015.02.014

subject

Has Abstract

pub_date

2015-04-01 00:00:00

pages

175-183

eissn

0167-5273

issn

1874-1754

pii

S0167-5273(15)00131-X

journal_volume

184

pub_type

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