scholarly journals Ventricular Repolarization Abnormality

2020 ◽  
Author(s):  
Keyword(s):  
Ventricular Repolarization ◽  
Repolarization Abnormality

scholarly journals Indexes for ventricular repolarization abnormality: Re-evaluation of QT interval.

1992 ◽  
Vol 12 (3) ◽  
pp. 327-335
Author(s):  
Takahisa Maruyama ◽  
Tohru Ohe ◽  
Yoshiaki Okano ◽  
Takashi Kurita ◽  
Naohiko Aihara ◽  
...  
Keyword(s):  
Qt Interval ◽  
Ventricular Repolarization ◽  
Repolarization Abnormality

A review of beat-to-beat vectorcardiographic (VCG) parameters for analyzing repolarization variability in ECG signals

2016 ◽  
Vol 61 (1) ◽  
pp. 3-17 ◽  
Author(s):  
Muhammad A. Hasan ◽  
Derek Abbott
Keyword(s):  
Signal Analysis ◽  
Ventricular Repolarization ◽  
Ecg Signal ◽  
Potential Utility ◽  
Ecg Signals ◽  
T Wave ◽  
Electrical Phenomenon ◽  
Alternative Approach ◽  
Exact Identification ◽  
Repolarization Abnormality

AbstractElevated ventricular repolarization lability is believed to be linked to the risk of ventricular tachycardia/ventricular fibrillation. However, ventricular repolarization is a complex electrical phenomenon, and abnormalities in ventricular repolarization are not completely understood. To evaluate repolarization lability, vectorcardiography (VCG) is an alternative approach where the electrocardiographic (ECG) signal can be considered as possessing both magnitude and direction. Recent research has shown that VCG is advantageous over ECG signal analysis for identification of repolarization abnormality. One of the key reasons is that the VCG approach does not rely on exact identification of the T-wave offset, which improves the reproducibility of the VCG technique. However, beat-to-beat variability in VCG is an emerging area for the investigation of repolarization abnormality though not yet fully realized. Therefore, the purpose of this review is to explore the techniques, findings, and efficacy of beat-to-beat VCG parameters for analyzing repolarization lability, which may have potential utility for further study.

scholarly journals Otherwise Unexplained Transient QTc Prolongation in a Patient Admitted with COVID Disease

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Mark Coyle ◽  
Mark Wilkinson ◽  
Mark Sheehy
Keyword(s):  
Qt Interval ◽  
Qt Prolongation ◽  
Ventricular Repolarization ◽  
Direct Result ◽  
Qtc Prolongation ◽  
Serum Electrolytes ◽  
Case Summary ◽  
Direct Association ◽  
Viral Illness ◽  
Repolarization Abnormality

Background. Several cardiovascular manifestations of coronavirus disease 2019 (COVID-19) have been previously described. QT prolongation has been reported in COVID-19 infection in association with medications such as azithromycin, hydroxychloroquine, and chloroquine but has not previously been reported as a direct result of COVID-19 infection. Case summary. We report the case of a 65-year-old female who developed a prolonged corrected QT interval (QTc) during a hospital admission with COVID-19. This patient was not on any QT prolonging treatment, serum electrolytes were normal, and there was no identifiable reversible cause for the QTc lengthening. Daily serial ECGs during admission showed resolution of the ventricular repolarization abnormality in synchronization with resolution of her COVID-19 viral illness. Discussions. Although there have been reports of QTc prolongation in COVID-19 patients, previous reports of this are for patients receiving medication that causes QT prolongation. This case uniquely demonstrates the development and resolution of this temporary ventricular repolarization abnormality in a patient with a structurally normal heart with no evidence of myocardial fibrosis or edema on cardiac MRI, that is unexplained by other confounding factors, such as medication. This suggests there may be a direct association between COVID-19 and temporary QTc prolongation.

scholarly journals B-PO05-003 EFFECT OF BARIATRIC SURGERY ON VENTRICULAR REPOLARIZATION

Heart Rhythm ◽  
2021 ◽  
Vol 18 (8) ◽  
pp. S371-S372
Author(s):  
Erden Goljo ◽  
Abhijeet Singh ◽  
Ibrahim O. Almasry ◽  
Roger Fan ◽  
Aurora Pryor ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Ventricular Repolarization
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