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Original Article
Abnormal Fractal Correlation of Heart Rate in Children with Neurocardiogenic Syncope
Keoung-Young Kim, Eun-Young Joo, Myung-Kul Yum, Je-Wen Oh, Chang-Ryul Kim, Nam-Su Kim, Cheol-Beom Lee, Chung-Ill Noh
Clin Exp Pediatr. 2002;45(9):1114-1119.   Published online September 15, 2002
Purpose : The purposes of this study were to determine short- and long-term fractal correlation behavior of heart rates during daily activity in patients with neurocardiogenic syncope. Methods : Twenty five patients with histories of neurocardiogenic syncope episodes were included. Their analogue 24h ambulatory Holter electrocardiograms were analyzed. The tape was digitized and the digitized electrocardiograms were partioned into...
Ventricular Inhomogeneity and Beat-to-beat QT Interval Variability after Surgical Repair of Tetralogy of Fallot
Su-Hyun Kim, Myung-Kul Yum, Nam-Su Kim, Chang-Ryul Kim, Chul-Burm Lee, Chung-Ill Noh, Hee-Soo Kim
Clin Exp Pediatr. 2001;44(4):418-425.   Published online April 15, 2001
Purpose : The object of this study is to determine whether QT interval variability in patients with postoperative tetralogy of Fallot increases. Methods : We enrolled 41 patients who had total correction of tetralogy of Fallot, and 31 healthy controls. They were 6-12 years old. Patients were divided into 2 groups : arrhythmia-positive patients(n=10) who had ventricular premature contractions more than...
Clinical Trends in Acute Rheumatic Fever in Korean Children : Mailed Questionnaire Survey from 1988 to 1997 (Compared with 1978-1987)
Hyeon-Ho Kang, Sung-Ho Cha, Kyong-Su Lee, Sang-Bum Lee, Tae-Chan Kwon, Young-Chang Tockgo, Chang-Sung Son, Jin-A Son, Hee-Ju Park, Yong-Soo Yun, Jung-Yun Choi, Chang-Hwi Kim, Chul-Ho Kim, Tai-Ju Hwang, Jae-Sook Ma, Chan-Uhng Joo, Nam-Su Kim
Clin Exp Pediatr. 1999;42(10):1381-1391.   Published online October 15, 1999
Purpose : The purpose of this study was to assess the frequency of acute rheumatic fever(ARF) among children in Korea and to describe trends in its clinical characteristics compared to data from a previous study(1978-1987). Methods : A mailed questionnaire survey sent to the pediatric departments of 13 general hospitals in Korea requested the total number of patients with ARF and...
Autonomic Activity, Cardiac Chaos and Circadian Rhythm in Asymptomatic Children with Postoperative Tetralogy of Fallot
Myung-Kul Yum, Nam-Su Kim, Jae-Won Oh, Chang-Ryul Kim, Chul-Burm Lee, June Huh, Chung-Il Noh
Clin Exp Pediatr. 1998;41(11):1517-1529.   Published online November 15, 1998
Purpose : This study aimed to characterize the autonomic and chaotic control of heart rate and circadian rhythm in asymptomatic patients with postoperative tetralogy of Fallot(pTOF). Methods : Twenty-four-hour electrocardiogram recordings were obtained in 30 asymptomatic pTOF patients and in 30 age-and sex-matched controls, aged between 6 and 11 years. The data was digitized and partitioned into sections of 30-...
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