Evaluation of QT Dispersion in Children with Breath Holding Spells
Iranian Journal of Child Neurology,
Vol. 10 No. 1 (2016),
1 January 2016
,
Page 25-30
https://doi.org/10.22037/ijcn.v10i1.7123
Abstract
How to Cite This Article: Movahedian AH, Heidarzadeh Arani M, Motaharizad M, Mousavi GhA, Mosayebi Z. Evaluation of QT Dispersion in Children with Breath Holding Spells. Iran J Child Neurol. Winter 2016; 10(1):25-30.
Abstract
Objective
Breath holding spells (BHS) are common involuntary reflexes in infancy and early childhood. Differential diagnosis should embrace Long QT Syndrome (LQTS) and paroxysmal abnormalities of rhythm. The aim of this study was to compare QT dispersion (QTd) in children with breath holding spells and normal controls.
Materials & Methods
QT dispersion and Corrected QT(QTc) dispersion were measured in 12 lead surface electrocardiograms in 56 patients with BHS and compared with healthy children of the same age referred to the clinic for regular checkup visits.
Results
The most common type of BHS was cyanotic (83.9%). Seven patients (12.5%) had pallid and two patients (3.5%) had mixed spells. There was a history of breath holding spells in 33.9% of the children. QT dispersion was 61.6± 22.5 and 47.1±18.8 ms in patient and control groups, respectively. QTc dispersion (QTcd) was 104 ± 29.6 and 71.9 ±18.2 ms, respectively. There was a significant difference between patient and control groups in terms of QTd and QTcd (P<0.001).
Conclusion
QTd and QTcd were increased in children with BHS. Therefore, the evaluation of EKG for early diagnosis of rhythm abnormalities seems reasonable in these children.
- Breath holding spell
- Dispersion
- QT interval
- QT dispersion
- QTc dispersion
How to Cite
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