QT interval variability in body surface ECG: measurement, physiological basis, and clinical value: position statement and consensus guidance endorsed by the European Heart Rhythm  Association jointly with the ESCWorking Group  on Cardiac Cellular Electrophysiology
Resumen: This consensus guideline discusses the electrocardiographic phenomenon of beat-to-beat QT interval variability (QTV) on surface electrocardiograms. The text covers measurement principles, physiological basis, and clinical value of QTV. Technical considerations include QT interval measurement and the relation between QTV and heart rate variability. Research frontiers of QTV include understanding of QTV physiology, systematic evaluation of the link between QTV and direct measures of neural activity, modelling of the QTV dependence on the variability of other physiological variables, distinction between QTV and general T wave shape variability, and assessing of the QTV utility for guiding therapy. Increased QTV appears to be a risk marker of arrhythmic and cardiovascular death. It remains to be established whether it can guide therapy alone or in combination with other risk factors. QT interval variability has a possible role in non-invasive assessment of tonic sympathetic activity.
Idioma: Inglés
DOI: 10.1093/europace/euv405
Año: 2016
Publicado en: EUROPACE (2016), 2-20
ISSN: 1099-5129

Factor impacto JCR: 4.53 (2016)
Categ. JCR: CARDIAC & CARDIOVASCULAR SYSTEMS rank: 31 / 126 = 0.246 (2016) - Q1 - T1
Factor impacto SCIMAGO: 2.673 - Physiology (medical) (Q1) - Cardiology and Cardiovascular Medicine (Q1)

Tipo y forma: Article (Published version)
Área (Departamento): Área Teoría Señal y Comunicac. (Dpto. Ingeniería Electrón.Com.)

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 Record created 2016-07-12, last modified 2020-02-21

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