Evaluation of QT dispersion in children with breath holding spells

Movahedian, A.H. and Heidarzadeh-Arani, M. and Motaharizad, D. and Moosavi, G.A. and Mosayebi, Z. (2016) Evaluation of QT dispersion in children with breath holding spells. Iranian Journal of Child Neurology, 10 (1). pp. 25-30.

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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. © 2016, Iranian Child Neurology Society. All rights reserved.

Item Type: Article
Additional Information: cited By 1
Uncontrolled Keywords: Article; breath holding; breath holding spell; child; controlled study; cyanosis; electrocardiography; female; heart repolarization; heart rhythm; human; infant; major clinical study; male; QT dispersion; QT interval
Subjects: Medicine
Divisions: Faculty of Medicine > Clinical Sciences > Department of Pediatrics
Depositing User: editor . 2
Date Deposited: 08 Mar 2017 22:02
Last Modified: 08 Mar 2017 22:02
URI: http://eprints.kaums.ac.ir/id/eprint/213

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