Evidence map›Paper›PMID 26823389›Full record

ArticleEuropace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology2016

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 ESC Working Group on Cardiac Cellular Electrophysiology.

Mathias Baumert, Alberto Porta, Marc A Vos, Marek Malik, Jean-Philippe Couderc, Pablo Laguna, Gianfranco Piccirillo, Godfrey L Smith, Larisa G Tereshchenko, Paul G A Volders

Registry-linked trialOpen access · bronzeAbstract readConsensus Statement
In one paragraph

Article in Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04621032 (Obstructive Sleep Apnea Destabilizes Myocardial Repolarization Homogeneity), which is not on this map. Cited by 108 papers.

0numbers the graph read from it
0cells of the map it votes in
108citing papers in PubMed
18.8field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04621032 completednot on this map

Obstructive Sleep Apnea Destabilizes Myocardial Repolarization Homogeneity

Typeobservational_patient_registrySponsorNowodworskie Centrum MedyczneRan2016 to 2019Enrolled187ConditionsObstructive Sleep Apnea, Heart Rhythm Disorder, Obesity, AbdominalArmsPolygraphy monitoring, laboratory tests
3 · Its place in the literature

Who cites it

108 citing papers in PubMed, 235 citations in OpenAlex.

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  3. Confirmation of the Cardiac Safety of PGFClinical pharmacology in drug development · 2018
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  9. Mechano-electrical feedback in transgenic rabbit models of long QT syndrome Type 2 and short QT syndrome Type 1.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2026
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  17. Case Report: Two cases of recurrent syncope caused byFrontiers in cardiovascular medicine · 2026
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48 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 10 institutions in 6 countries.

Mathias BaumertSchool of Electrical and Electronic Engineering, The University of Adelaide, Adelaide, SA, Australia.
Alberto PortaDepartment of Biomedical Sciences for Health, University of Milan, Milan, Italy Department of Cardiothoracic, Vascular Anesthesia and Intensive Care, IRCCS Policlinico San Donato, Milan, Italy.
Marc A VosDepartment of Medical Physiology, Division of Heart and Lungs, University Medical Center Utrecht, Utrecht, The Netherlands.
Marek MalikSt Paul's Cardiac Electrophysiology, University of London, and National Heart and Lung Institute, Imperial College, Dovehouse Street, London SW3 6LY, UK marek.malik@btinternet.com.
Jean-Philippe CoudercHeart Research Follow-Up Program, University of Rochester Medical Center, Rochester, NY, USA.
Pablo LagunaZaragoza University and CIBER-BBN, Zaragoza, Spain.
Gianfranco PiccirilloDipartimento di Scienze Cardiovascolari, Respiratorie, Nefrologiche, Anestesiologiche e Geriatriche, Università 'La Sapienza' Rome, Rome, Italy.
Godfrey L SmithInstitute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK.
Larisa G TereshchenkoOregon Health and Science University, Knight Cardiovascular Institute, Portland, OR, USA.
Paul G A VoldersDepartment of Cardiology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, Maastricht, The Netherlands.
Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine · ESImperial College London · GBIRCCS Policlinico San Donato · ITMaastricht University Medical Centre · NLOregon Health & Science University · USSapienza University of Rome · ITUniversity Medical Center Utrecht · NLUniversity of Adelaide · AUUniversity of Glasgow · GBUniversity of Rochester Medical Center · US

Funding

Novel ECG Measures and Risk of Sudden Cardiac DeathR01HL118277 · NHLBI · OREGON HEALTH & SCIENCE UNIVERSITY · PI TERESHCHENKO, LARISA GENNADIEVNA · 2013 to 2016
$1.5M
British Heart Foundation PG/09/011/26753British Heart Foundation PG/12/77/29857British Heart Foundation PG/13/54/30358NHLBI NIH HHS R01 HL118277
6 · The paper itself

Abstract

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.

Indexed as

Practice Guidelines as TopicCardiac ElectrophysiologyConsensusElectrocardiographyEuropeHumansSocieties, MedicalAutonomic nervous systemECGHeart rate variabilityQT interval variabilityRepolarizationSympathetic activity

Identifiers

PMID26823389
PMCPMC4905605
OpenAlexW2256815008

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.