A Comparing of Tp-Te Interval and Tp-Te/Qt Ratio in Patients with Preserved, Mid-Range and Reduced Ejection Fraction Heart Failure

Open Access Macedonian Journal of Medical Sciences

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Title A Comparing of Tp-Te Interval and Tp-Te/Qt Ratio in Patients with Preserved, Mid-Range and Reduced Ejection Fraction Heart Failure
Creator Son, Osman
Boduroglu, Yalcin
Subject Heart Failure
Transmural dispersion
Tp-Te interval
Description BACKGROUND: Heart failure (HF) is classified in three class: HF with preserved EF (HFpEF); normal or LVEF ≥ 50%, HF with reduced EF (HFrEF); LEVF < 40% and newly HF mid-range EF (HFmrEF); LVEF 40-49%. On Electrocardiography (ECG) T wave, Tpeak-Tend (Tp-Te) interval reflects transmural dispersion of repolarisation (TDR) which of these indexes have been proposed as predictors of risk for ventricular arrhythmia (VA) in many cardiac diseases.
AIM: Aim of this study to asses these indices of TDR among three HF class.
METHODS: Total of 192 patients were included in this study.
RESULTS: Many of indices like Tp-Te, Tp-Te/QT wasn’t different between groups (P > 0.05). But mean Q-Tpeak (QTp), S-Tend (S-Te) and S-Tpeak (S-Tp) were found significantly different between groups (P < 0.05). Again S-Te was found different according to having fragmented QRS (fQRS) on ECG (P = 0.031). Comparing to mitral inflow E/A parameters showed significant differences for Tp-Te, Tp-Tec, Tp-Te/QT, Tp-Te/QTc and Tp-Tec/QTc parameters. Finally, we found correlations between S-Te and white blood cell (WBC) (r = - 0.171; P = 0.037) and S-Tp and WBC (r = - 0.170; P = 0.038) and between S-Te and fQRS (r = 0.158; P = 0.031).
CONCLUSIONS: We didn’t find differences for many of indices of TDR like Tp-Te interval between groups except QTp, S-Te, S-Tp intervals. Also, S-Te and fQRS showed significant correlation. For prediction of ventricular arrhythmia and cardiovascular death newer indexes on ECG are needed to be established in the future which will make us facilitate to distinguish high risk patients.
Publisher Scientific Foundation SPIROSKI, Skopje, Republic of Macedonia
Date 2019-03-13
Type info:eu-repo/semantics/article
Format application/pdf
Identifier https://www.id-press.eu/mjms/article/view/oamjms.2019.186
Source Open Access Macedonian Journal of Medical Sciences; Vol. 7 No. 5 (2019): Mar 15 (OAMJMS); 752-759
Language eng
Relation https://www.id-press.eu/mjms/article/view/oamjms.2019.186/3065
Rights Copyright (c) 2019 Osman Son, Yalcin Boduroglu

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