The Tp-e/QT ratio as a predictor of nocturnal premature ventricular contraction events in patients with obstructive sleep apnea

Yan, Hui; Liu, Huafen; Wang, Guipeng; Xing, Shigang; Huang, Bing; Xing, H. Rosie; Guo, Yuanyuan; Zhang, Pengke; Hu, Limei; Zhou, Jining; Cao, Guiqiu

doi:10.1007/s11325-022-02626-x

Cited by 2 publications

(2 citation statements)

References 25 publications

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“…Obstructive sleep apnea (OSA) is a risk factor for ventricular arrhythmias. Assessing which patients are at a higher risk of this complication is important, as demonstrated in Yan et al's study [ 130 ]. According to their retrospective analysis, patients who presented nocturnal premature ventricular contractions had a significantly higher Tp-e/QT ratio than those with OSA.…”

Section: Resultsmentioning

confidence: 99%

Tpeak‐Tend ECG Marker in Obesity and Cardiovascular Diseases: A Comprehensive Review

Dykiert,

Florek,

Kraik

et al. 2024

Scientifica

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Globally, cardiovascular diseases are still the leading cause of death. Numerous methods are used to diagnose cardiovascular pathologies; there is still a place for straightforward and noninvasive techniques, such as electrocardiogram (ECG). Depolarization and repolarization parameters, including QT interval and its derivatives, are well studied. However, the Tpeak‐Tend interval is a novel and promising ECG marker with growing evidence for its potential role in predicting malignant arrhythmias. In this review, we discuss the association between the Tpeak‐Tend interval and several cardiovascular diseases, including long QT syndrome, cardiomyopathies, heart failure, myocardial infarction, and obesity, which constitutes one of the risk factors for cardiovascular diseases.

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Section: Resultsmentioning

confidence: 99%

Tpeak‐Tend ECG Marker in Obesity and Cardiovascular Diseases: A Comprehensive Review

Dykiert,

Florek,

Kraik

et al. 2024

Scientifica

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show abstract

“…In our previous study, we detected similarly high levels of Tp-e intervals, Tp-e/QT ratios and Tp-e/ QTc ratios. 32 Yan et al 33 showed that a prolonged Tp-e/ QT ratio was an independent predictor of nocturnal PVCs in OSA patients. Tashiro et al 34 claimed that prolonged absolute and corrected Tp-e intervals and an increase in the Tp-e/QT ratio may be useful predictors of lifethreatening arrhythmia in children with hypertrophic cardiomyopathy.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Tp-e interval, Tp-e/QT, and Tp-e/QTc ratio in primary hyperparathyroidism before and after parathyroidectomy

ÇETİNKAYA,

KELEŞOĞLU,

GÖKAY

et al. 2024

Anatolian Current Medical Journal

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Aims: This study aimed to evaluate Tp-e interval, Tp-e/QT ratio, and Tp-e/QTc ratios, which are new ventricular repolarization (VR) parameters in primary hyperparathyroidism (PHPT) patients, and also investigate the potential effect of parathyroidectomy (PTx) on these parameters. Methods: In total, 27 patients with PHPT who underwent PTx and 25 control subjects were selected for our study. Tp-e interval, Tp-e/QT ratio, and Tp-e/QTc ratios of patients planned for PTx were compared to healthy matched controls. Electrocardiographic parameters measured 6 months after the surgery were also compared with preoperative values for each patient. Results: Tp-e interval, Tp-e/QT ratio, and Tp-e/QTc ratio were significantly higher in PHPT patients compared to the control group (p<0.001, for all).It was observed that the parameters mentioned after surgery decreased significantly, and there was no statistical difference when compared to the control group.The correlation analysis revealed a significant and positive correlation between corrected calcium (CCa) and PTH levels with Tp-e interval, Tp-e/QT ratio, and Tp-e/QTc ratio (for Ca; r=0.515, p=0.006; r=0.398, p=0.040; r=0.797, p<0.001 respectively vs. for PTH; r=538, p=0.04; r=0.422, p=0.028; r=0.812, p<0.001 respectively). Conclusions: This study showed that Tp-e interval, Tp-e/QT, and Tp-e/QTc ratios were prolonged in PHPT.These values, which are accepted as an indicator of sudden cardiac death after PTx, decreased significantly. In addition, both high PTH and high calcium(Ca) levels appear to have the potential to cause arrhythmogenic effects separately.

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The Tp-e/QT ratio as a predictor of nocturnal premature ventricular contraction events in patients with obstructive sleep apnea

Cited by 2 publications

References 25 publications

Tpeak‐Tend ECG Marker in Obesity and Cardiovascular Diseases: A Comprehensive Review

Tpeak‐Tend ECG Marker in Obesity and Cardiovascular Diseases: A Comprehensive Review

Evaluation of Tp-e interval, Tp-e/QT, and Tp-e/QTc ratio in primary hyperparathyroidism before and after parathyroidectomy

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