QTc, Tp-e Interval and Tp-e/QTc Ratio in Patients with Hypocalcemia-case Control Study
Int. j. cardiovasc. sci. (Impr.)
; 34(5,supl.1): 87-94, Nov. 2021. tab, graf
Article
in En
| LILACS
| ID: biblio-1346346
Responsible library:
BR1.1
ABSTRACT
Abstract Background:
To the best of our knowledge, there are studies related to QT and QTc interval in patients with hypocalcemia, but there are no studies evaluating T wave peak and end interval (Tp-e interval), Tp-e/QT and Tp-e/QTc ratios used to evaluate cardiac arrhythmia risk and ventricular repolarization changes rates.Objectives:
Therefore, we aimed to investigate whether there is a change in Tp-e interval, Tp-e/QT and Tp-e/QTc ratios in patients with hypocalcemia.Methods:
Retrospectively, 29 patients with hypocalcemia in the emergency department were included in the study. Twenty-nine patients with similar age and sex distribution were included in the study as the control group. All patients underwent 12-lead electrocardiography (ECG). In addition to routine measurements, Tp-e interval, Tp-e/QT and Tp-e/QTc ratios were measured on ECG. The study data were grouped as patients with and without hypocalcemia.Results:
The mean age of the patients was 66.24 ± 4.95 years. QTc interval, Tp-e interval and Tp-e/QTc values were found to be significantly higher in patients with hypocalcemia (p <0.001 for each). QTc interval, Tp-e interval and Tp-e/QTc ratio showed a significant negative correlation with calcium levels.Conclusion:
Tp-e interval and Tp-e/QTc ratios are significantly increased in patients with hypocalcemia compared to those without hypocalcemia and this can be used more effectively in the follow-up of cardiac fatal arrhythmias.Key words
Full text:
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Index:
LILACS
Main subject:
Arrhythmias, Cardiac
/
Long QT Syndrome
/
Hypocalcemia
Type of study:
Diagnostic_studies
/
Observational_studies
/
Risk_factors_studies
Limits:
Aged
/
Female
/
Humans
/
Male
Language:
En
Journal:
Int. j. cardiovasc. sci. (Impr.)
Journal subject:
CARDIOLOGIA
Year:
2021
Type:
Article