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Iranian Journal of Pediatrics
Tehran University of Medical Sciences Press
ISSN: 1018-4406
EISSN: 1018-4406
Vol. 22, No. 3, 2012, pp. 385-391
Bioline Code: pe12069
Full paper language: English
Document type: Research Article
Document available free of charge

Iranian Journal of Pediatrics, Vol. 22, No. 3, 2012, pp. 385-391

 en T-Peak to T-End Abnormality in Pediatric Patients with Syncope
Amoozgar, Hamid & Hosseiniasl, Mohammad


Objective: The purpose of this study was to examine the relationship between T-peak-to-T-end interval and its dispersion in children with syncope to detect possible repolarization abnormalities in these patients.
Methods: We enrolled 19 patients with a positive tilt test for syncope (7 boys, 12 girls) and 35 participants with normal results on the test.
Findings: Mean age was 11.4±3.1 years in patients and 10.0±5.1 years in controls (P =0.27). The T-peak-to-Tend interval in lead V1 was significantly longer in patients with a positive tilt test (0.36±0.062 vs. 0.32±0.071, P=0.007). T-peak-to-T-end interval dispersion was significantly greater in the group of patients (0.15±0.07 vs. 0.11±0.04, P±0.003).
Conclusion: The T-peak-to-T-end interval in lead V1 and T-peak-to-T-end dispersion were significantly larger in patients with a positive tilt test. Our findings suggest a depolarization abnormality in children with syncope.

Electrocardiogram; Ventricular Repolarization; T-end; Syncope; Vasovagal Test; Tilt-table Test

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