Volume 34, Issue 6 (9-2026)
JSSU 2026, 34(6): 10358-10365 |
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Ethics code: IR.SEMUMS.REC.1401.313
Clinical trials code: IR.SEMUMS.REC.1401.313
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Hooshmandi S, Janghorbani A, Pakdek N, Rahimi S. Evaluation of QT Interval Status in Low-Risk Children Presenting with Chest Pain During 2022–2023: A Cross-Sectional Study. JSSU 2026; 34 (6) :10358-10365
URL: http://jssu.ssu.ac.ir/article-1-6587-en.html
URL: http://jssu.ssu.ac.ir/article-1-6587-en.html
Abstract: (33 Views)
Introduction:
Chest pain is a common complaint among children and is usually non-cardiac in origin. Nevertheless, due to the rare possibility of malignant arrhythmias or sudden cardiac death, careful evaluation is essential. QT interval measurement on electrocardiography (ECG) is considered an important parameter in the initial assessment. This study aimed to evaluate QT interval characteristics and their clinical associations in low-risk pediatric patients presenting with chest pain.
Methods:
In this cross-sectional study, 80 children aged 5–14 years who presented with significant chest pain to the pediatric clinic of Amir al-Momenin Hospital (Semnan, Iran) during 2022–2023 were enrolled. Children with known cardiac disease or taking QT-modifying medications were excluded. Demographic data and standard 12-lead ECGs were collected, and QT intervals were measured using established manual protocols. Statistical analyses were performed using SPSS version 24.
Results:
The mean QT interval was 0.376 ± 0.026 seconds, with all values falling within the normal physiological range. No statistically significant associations were found between QT interval and age, sex, weight, family history of cardiac disease, medication use, or history of comorbid conditions (P > 0.05).
Conclusions:
The findings indicate that in low-risk children presenting with chest pain, QT interval abnormalities are uncommon and measured values remain within normal limits. Routine QT assessment in this population appears to have limited diagnostic value. Greater emphasis should instead be placed on detailed clinical history, associated symptoms, and relevant family risk factors to guide clinical decision-making.
Chest pain is a common complaint among children and is usually non-cardiac in origin. Nevertheless, due to the rare possibility of malignant arrhythmias or sudden cardiac death, careful evaluation is essential. QT interval measurement on electrocardiography (ECG) is considered an important parameter in the initial assessment. This study aimed to evaluate QT interval characteristics and their clinical associations in low-risk pediatric patients presenting with chest pain.
Methods:
In this cross-sectional study, 80 children aged 5–14 years who presented with significant chest pain to the pediatric clinic of Amir al-Momenin Hospital (Semnan, Iran) during 2022–2023 were enrolled. Children with known cardiac disease or taking QT-modifying medications were excluded. Demographic data and standard 12-lead ECGs were collected, and QT intervals were measured using established manual protocols. Statistical analyses were performed using SPSS version 24.
Results:
The mean QT interval was 0.376 ± 0.026 seconds, with all values falling within the normal physiological range. No statistically significant associations were found between QT interval and age, sex, weight, family history of cardiac disease, medication use, or history of comorbid conditions (P > 0.05).
Conclusions:
The findings indicate that in low-risk children presenting with chest pain, QT interval abnormalities are uncommon and measured values remain within normal limits. Routine QT assessment in this population appears to have limited diagnostic value. Greater emphasis should instead be placed on detailed clinical history, associated symptoms, and relevant family risk factors to guide clinical decision-making.
Type of Study: Original article |
Subject:
Pediatrics
Received: 2025/12/5 | Accepted: 2026/02/23 | Published: 2026/09/6
Received: 2025/12/5 | Accepted: 2026/02/23 | Published: 2026/09/6
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