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Original Article
The corrected QT (QTc) prolongation in hyperthyroidism and the association of thyroid hormone with the QTc interval
Ye Seung Lee, Joong Wan Choi, Eun Ju Bae, Won Il Park, Hong Jin Lee, Phil Soo Oh
Clin Exp Pediatr. 2015;58(7):263-266.   Published online July 22, 2015
Purpose

Ventricular repolarization is assessed using the QT interval corrected by the heart rate (QTc) via an electrocardiogram (ECG). Prolonged QTc is associated with an increased risk of arrhythmias and cardiac mortality. As there have been few reports regarding the effects of hyperthyroidism on ventricular repolarization, we studied the association between serum free thyroxine (free T4 [fT4]) and thyroid stimulating hormone...

Implantable cardioverter defibrillator therapy in pediatric and congenital heart disease patients: a single tertiary center experience in Korea
Bo Kyung Jin, Ji Seok Bang, Eun Young Choi, Gi Beom Kim, Bo Sang Kwon, Eun Jung Bae, Chung Il Noh, Jung Yun Choi, Woong Han Kim
Clin Exp Pediatr. 2013;56(3):125-129.   Published online March 18, 2013
Purpose

The use of implantable cardioverter defibrillators (ICDs) to prevent sudden cardiac death is increasing in children and adolescents. This study investigated the use of ICDs in children with congenital heart disease.

Methods

This retrospective study was conducted on the clinical characteristics and effectiveness of ICD implantation at the department of pediatrics of a single tertiary center between 2007 and 2011.

Results

Fifteen patients underwent...

Case Report
A Case of Congenital Long QT Syndrome with Reccurent Syncope
Jong Hwa Hwang, Hong Bae Kim
Clin Exp Pediatr. 2000;43(5):725-729.   Published online May 15, 2000
Congenital long QT syndrome(LQTS) is a disease characterized by prolongation of ventricle repolarization and by the occurrence, usually during emotional or physical stress, of life-threatening arrhythmias that lead to sudden death in most symptomatic and untreated patients. Two variants have been initially identified : the original Jervell and Lange-Nielsen syndrome of congenital deafness and autosomal recessive inheritance, and the more...