QT and Tpeak‐Tend interval variability: Predictive electrical markers of hospital stay length and mortality in acute decompensated heart failure. Preliminary data
Sign Up to like & getrecommendations! Published in 2022 at "Clinical Cardiology"
DOI: 10.1002/clc.23888
Abstract: As previously reported, an increased repolarization temporal imbalance induces a higher risk of total/cardiovascular mortality. read more here.
Keywords: variability predictive; interval variability; predictive electrical; tpeak tend ... See more keywords
RR interval variability in the evaluation of ventricular tachycardia and effects of implantable cardioverter defibrillator therapy
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DOI: 10.1002/joa3.12551
Abstract: An implantable cardioverter defibrillator (ICD) is the most reliable therapeutic device for preventing sudden cardiac death in patients with sustained ventricular tachycardia (VT). Regarding its effectiveness, targeted VT is defined based on the tachyarrhythmia cycle… read more here.
Keywords: interval variability; ventricular tachycardia; variability; therapy ... See more keywords
Relationship between stride interval variability and aging: use of linear and non-linear estimators for gait variability assessment in assisted living environments
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Ambient Intelligence and Humanized Computing"
DOI: 10.1007/s12652-017-0608-z
Abstract: The aim of this study is to assess the impact of aging process in gait variability. Stride interval variability is estimated by using two approaches: (1) a non-linear fractal analysis (detrended fluctuation analysis) which evaluates… read more here.
Keywords: non linear; interval variability; gait variability; variability ... See more keywords
Comparison of QT interval variability of coronary patients without myocardial infarction with that of patients with old myocardial infarction
Sign Up to like & getrecommendations! Published in 2019 at "Computers in biology and medicine"
DOI: 10.1016/j.compbiomed.2019.103396
Abstract: BACKGROUND The significant association of myocardial ischemia with elevated QT interval variability (QTV) has been reported in myocardial infarction (MI) patients. However, the influence of the time course of MI on QTV has not been… read more here.
Keywords: interval variability; myocardial infarction; infarction; coronary patients ... See more keywords
Comparing QT interval variability of semiautomated and high‐precision ECG methodologies in seven thorough QT studies—implications for the power of studies intended for definitive evaluation of a drug's QT effect
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DOI: 10.1111/anec.12416
Abstract: In studies of drug effects on electrocardiographic parameters, the level of precision in measuring QTc interval changes will influence a study's ability to detect small effects. read more here.
Keywords: interval variability; comparing interval; variability semiautomated; drug ... See more keywords
Relationship between QT and JT peak interval variability in prepubertal children
Sign Up to like & getrecommendations! Published in 2017 at "Annals of Noninvasive Electrocardiology"
DOI: 10.1111/anec.12444
Abstract: The QT variability index (QTVI) is a noninvasive index of repolarization lability that has been applied to subjects with cardiovascular disease. QTVI provides a ratio of normalized QT variability to normalized heart rate variability, and… read more here.
Keywords: interval variability; variability prepubertal; peak interval; variability ... See more keywords
Influence of Sleep Bruxism on QTc Interval and QT Variability in Patients with OSA: a pilot study.
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DOI: 10.1111/joor.13314
Abstract: BACKGROUND Obstructive sleep apnea (OSA) is associated with increases in QT interval corrected for heart rate (QTc interval) and QT variability index (QTVI) and sleep bruxism (SB) is prevalent in OSA patients. OBJECTIVES To examine… read more here.
Keywords: interval variability; rmmas lms; patients osa; qtc interval ... See more keywords
Short-Term Beat-to-Beat QT Variability Appears Influenced More Strongly by Recording Quality Than by Beat-to-Beat RR Variability
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DOI: 10.3389/fphys.2022.863873
Abstract: Increases in beat-to-beat variability of electrocardiographic QT interval duration have repeatedly been associated with increased risk of cardiovascular events and complications. The measurements of QT variability are frequently normalized for the underlying RR interval variability.… read more here.
Keywords: beat variability; noise; quality; interval variability ... See more keywords