Spatial QRS-T angle in patients with newly diagnosed obstructive sleep apnea syndrome

Kiciński, Paweł; Schlegel, Todd T.; Dybała, Andrzej; Zakrzewski, Maciej; Przybylska-Kuć, Sylwia; Myśliński, Wojciech; Mosiewicz, Jerzy; Głuszek, Stanisław; Jaroszyński, Andrzej

doi:10.1016/j.advms.2016.11.008

Cited by 3 publications

(4 citation statements)

References 28 publications

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“…Kicinski et al. () showed a similar finding with spatial QRS‐T angle. Likewise, linear associations between AHI and QRS‐T angle were shown in both studies.…”

Section: Discussionmentioning

confidence: 55%

Sleep‐disordered breathing and electrocardiographic QRS‐T angle: The MESA study

Kwon

Misialek

Duprez

et al. 2018

Noninvasive Electrocardiol

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“…Kicinski et al. () showed a similar finding with spatial QRS‐T angle. Likewise, linear associations between AHI and QRS‐T angle were shown in both studies.…”

Section: Discussionmentioning

confidence: 55%

Sleep‐disordered breathing and electrocardiographic QRS‐T angle: The MESA study

Kwon

Misialek

Duprez

et al. 2018

Noninvasive Electrocardiol

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“…The available data regarding the correlation of these parameters are inconsistent. In patients with sleep-related disorders, troponin T did not correlate with QRST-A [21], while in other studies conducted on high-risk patient groups, such as end-stage renal disease, this association was robust [16]. It seems that such a correlation can be modulated by different cardiac conditions, especially underlying coronary artery disease or heart failure.…”

Section: Discussionmentioning

confidence: 96%

“…ECG parameters and cTnT are often used as surrogates in scientific research to indicate the risk of cardiovascular complications [21]. ECG is widely available, easy to perform and cost effective method and therefore it is valuable in screening and stratification of the adverse cardiovascular events risk.…”

Section: Discussionmentioning

confidence: 99%

The impact of electroconvulsive therapy on the spatial QRS-T angle and cardiac troponin T concentration in psychiatric patients

et al. 2019

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BackgroundElectroconvulsive therapy (ECT) is an effective treatment method used in psychiatry; however, its cardiac safety has not been clearly demonstrated. The aim of the study was evaluation of the ECT effects on the myocardium based on troponin T concentrations and the following ECG parameters: the spatial QRS-T angle (QRS-TA), QRS duration (QRSd) and the corrected QT interval (QTc).MethodsIn the study 44 patients (12 female and 32 male) were enrolled diagnosed with schizophrenia (n = 21) and major depressive disorders (n = 23), according to the DSM-IVR criteria. All cases were undergoing ECT procedures. The mean age of the patients was 36.9±16 years (range: 18–74). Resting ECG was recorded before performing ECG and 1 hour after. The spatial QRS-TA was reconstructed from 12-lead ECG using the inverse Dower method. Troponin T concentration was assessed before the procedure and 6 hours after ECT.ResultsNo significant changes to troponin T concentrations were observed during the ECT series. The pre-ECT value of the spatial QRS-TA was 41.1±18.9°. The follow-up examinations did not reveal any significant increase of this parameter (p = 0.09) in any of the consecutive measurements. There were no significant changes in the QTc interval duration or the QRS complex duration demonstrated before the third, fifth and last procedure in the cycle (p>0.05). No significant changes to troponin T concentrations were observed during the ECT series.ConclusionsOur findings indicate a lack of negative ECT effects on the risk of adverse cardiovascular events measured by the spatial QRS-T angle and cardiac troponin T concentration.

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“…The QRS loop re ects depolarization, whereas the T loop re ects repolarization. By VCG, one can measure a spatial angle between depolarization and repolarization, speci cally a spatial angle between the spatial QRS vector and spatial T vector, namely spatial QRS-T angle [6,15]. While normal ranges for spatial QRS-T angle vary by method and by study, most studies have suggested that normal values lie below 100°-110° for men and below 90° for women.…”

Section: Discussionmentioning

confidence: 99%

Clinical Application of the Spatial QRS-T Angle for the Prediction of Pulmonary Arterial Hypertension in Patients with Acute Pulmonary Embolism

Chang

Chai

et al. 2020

Preprint

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Background: The objective of our study was to assess the clinical application of the spatial QRS-T angle for the prediction of pulmonary arterial hypertension (PAH) in patients with acute pulmonary embolism.Methods: The study group of 162 patients with acute pulmonary embolism was stratiﬁed on the basis of color doppler echocardiographic ﬁndings into two subgroups: non-PAH group (n = 92) and PAH group (n = 70). Then PAH group patients were stratified into mild, moderate, and severe PAH group. Independent t-test was used to compare the indexes of non-PAH group and PAH group. One-way ANOVA was used to compare the indexes of mild, moderate, and severe PAH group. Pearson correlation analysis was used to evaluate the signiﬁcance of the correlation between acute pulmonary arterial systolic pressure (PASP) and spatial QRS-T angle.Results: The spatial QRS-T angle was larger in patients with PAH than those with non-PAH (109.010±30.970° VS 68.098±18.010°, P < 0.05). Signiﬁcant differences of spatial QRS-T angle values were found between patients with mild, moderate and severe PAH (73.714±15.716°, 104.790±20.675°, 139.57±23.196°, respectively, P < 0.05). There was a positively linear correlation between the spatial QRS-T angle and PASP in patients with PAH.Conclusions: Spatial QRS-T angle are potentially useful for differentiation between acute pulmonary embolism patients with PAH from those without PAH, and possibly also for predicting PASP in acute pulmonary embolism patients.

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Spatial QRS-T angle in patients with newly diagnosed obstructive sleep apnea syndrome

Cited by 3 publications

References 28 publications

Sleep‐disordered breathing and electrocardiographic QRS‐T angle: The MESA study

Sleep‐disordered breathing and electrocardiographic QRS‐T angle: The MESA study

The impact of electroconvulsive therapy on the spatial QRS-T angle and cardiac troponin T concentration in psychiatric patients

Clinical Application of the Spatial QRS-T Angle for the Prediction of Pulmonary Arterial Hypertension in Patients with Acute Pulmonary Embolism

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Spatial QRS-T angle in patients with newly diagnosed obstructive sleep apnea syndrome

Cited by 3 publications

References 28 publications

Sleep‐disordered breathing and electrocardiographic QRS‐T angle: The MESA study

Sleep‐disordered breathing and electrocardiographic QRS‐T angle: The MESA study

The impact of electroconvulsive therapy on the spatial QRS-T angle and cardiac troponin T concentration in psychiatric patients

Clinical Application of the Spatial&nbsp;QRS-T Angle for the Prediction of Pulmonary Arterial Hypertension&nbsp;in Patients with Acute Pulmonary Embolism

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Clinical Application of the Spatial QRS-T Angle for the Prediction of Pulmonary Arterial Hypertension in Patients with Acute Pulmonary Embolism