The Variability of Automated QRS Duration Measurement

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985807%3A_____%2F17%3A00473671" target="_blank" >RIV/67985807:_____/17:00473671 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21260/17:00318778 RIV/00216208:11110/17:10360156 RIV/00216208:11140/17:10360156 RIV/00669806:_____/17:10360156 RIV/00023001:_____/17:00075958

Result on the web

<a href="http://dx.doi.org/10.1093/europace/euw015" target="_blank" >http://dx.doi.org/10.1093/europace/euw015</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/europace/euw015" target="_blank" >10.1093/europace/euw015</a>

Result language

angličtina

Original language name

The Variability of Automated QRS Duration Measurement

Original language description

Aims: Previous studies have demonstrated substantial variability in manual assessment of QRS complex duration (QRSd). Disagreements in QRSd measurements were also found in several automated algorithms tested on digitized electrocardiogram (ECG) recordings. The aim of our study was to investigate the variability of automated QRSd measurements performed by two commercially available electrocardiographs. Methods and results: Two GE MAC 5000 (GE-1 and GE-2) electrocardiographs and two Mortara ELI 350 (Mortara-1 and Mortara-2) electrocardiographs were used in the study. Participants for the study were recruited from patients hospitalized in the department of cardiology of a university hospital. Participants underwent up to four recording sessions within a single day with a different electrocardiograph at each session when two to four immediately successive ECG recordings were undertaken. In 76 patients, 683 ECGs were recorded, the mean QRSd was 109.0 +/- 26.1 ms. The QRSd difference >= 10 ms between the first and second intra-session ECG was found in 7, 3, 20, and 14% of ECG pairs for GE-1, GE-2, Mortara-1, and Mortara-2, respectively. No inter-session difference in QRSd was found within both manufacturers. In individual patients, Mortara calculated the mean QRSd to be longer by 7.3 ms (95% CI: 6.2–8.5 ms, P < 0.0001) with a 2.1-times (95% CI: 1.9–2.4) greater standard deviation of the mean QRSd (7.1 vs. 3.3 ms, P < 0.001). Conclusion: Electrocardiographs from two manufacturers measured QRSd values with a systematic difference and a significantly different level of precision. This may have important clinical implications in selection of suitable candidates for cardiac resynchronization therapy.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10103 - Statistics and probability

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Europace

ISSN

1099-5129

e-ISSN

—

Volume of the periodical

19

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

636-643

UT code for WoS article

000400923600024

EID of the result in the Scopus database

2-s2.0-85019145810