Systematic comparisons of electrocardiographic morphology increase the precision of QT interval measurement

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F65269705%3A_____%2F09%3A%230000850" target="_blank" >RIV/65269705:_____/09:#0000850 - isvavai.cz</a>

Alternative codes found

RIV/65269705:_____/09:#0001510 RIV/00216224:14110/09:00059847

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Systematic comparisons of electrocardiographic morphology increase the precision of QT interval measurement

Original language description

Decreased intrasubject variability of QTc values is needed to increase the power and reduce the size of the so-called thorough QT studies. One source of QTc variability is the lack of systematic measurements when electrocardiograms (ECG) with closely matching morphologies are not measured in an exactly corresponding way. The inaccuracy can be eliminated by postprocessing of QT measurements by ECG pattern matching. This study tested the effects of pattern matching in ECG measurements in two populations of healthy subjects (n = 48 + 56) and in a population of patients with advanced Parkinson's disease (n = 130) in whom both day-time and night-time data were available. Intrasubject QTc variability was measured by intrasubject standard deviations (SD) of QTc values obtained with manual measurements before and after pattern-matching measurement alignments. In each subject, QT values (n = 230-320) in one drug-free long-term ECG recording were evaluated. T

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

FA - Cardiovascular diseases including cardio-surgery

OECD FORD branch

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Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2009

Confidentiality

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

Name of the periodical

Pacing & Clinical Electrophysiology

ISSN

0147-8389

e-ISSN

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Volume of the periodical

32

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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