Evaluation of QT Dispersion in Children with Breath Holding Spells
نویسندگان
1 1. Department of Pediatric Cardiology, Tehran University of Medical Sciences, Tehran, Iran
2 3. Pediatrician, Kashan University of Medical Sciences, Kashan, Iran
3 5. Department o f Neonatology, Tehran University of Medical Sciences, Tehran, Iran
4 2. Department of Asthma, Allergy & Immunology, Kashan University of Medical Sciences, Kashan, Iran
5 4. Statistics, Kashan University of Medical Sciences, Kashan, Iran
doi
10.22037/ijcn.v10i1.7123چکیده
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.AbstractObjectiveBreath 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 & MethodsQT 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).ConclusionQTd and QTcd were increased in children with BHS. Therefore, the evaluation of EKG for early diagnosis of rhythm abnormalities seems reasonable in these children.
