| Clinical Features and ECG Findings of Supraventricular Tachycardia in Pediatric Patients |
|
Chang Hwan Jang, Myung Chul Hyun |
|
Department of Pediatrics, College of Medicine, Kyungpook National University, Taegu, Korea |
| 소아에서 상실성 빈맥의 임상 양상과 심전도 소견 |
|
장창환, 현명철 |
|
경북대학교 의과대학 소아과학교실 |
|
|
|
|
| Abstract |
Purpose
: Supraventricular tachycardia(SVT) is the most frequent symptomatic arrhythmia in
children. We performed this study to disover the SVT mechanisms, age at SVT onset, symptoms
and ECG findings of SVT and effect of adenosine on SVT.
Methods
: We studied 57 patients(male : 30, female : 27, age : 1 day-15.8 years) who had been admitted
or transferred due to SVT from January, 1997 to March, 2001. Retrospectively we reviewed
their medical records, ECG and electrophysiologic study findings.
Results
: Of the total 57 patients, the mechanisms of SVT(including atrial flutter) were atrioventricular
reentrant tachycardia(AVRT) in 36(63%) patients, atrioventricular node reentrant tachycardia(
AVNRT) in 9(16%) patients, ectopic atrial tachycardia(EAT) in 6(11%) patients, multifocal
atrial tachycardia(MAT) in 3(5%) patients and atrial flutter(AF) in 3(5%) patients. Of the 12 primary
atrial tachycardias(including EAT, MAT and AF), 11 tachycardias began before 1 year of
age. The SVT occured before 1 year of age in 21(37%) patients, at 1 to 5 years of age in 7(12
%) patients, at 5 to 10 years of age in 19(33%) patients and after 10 years of age in 10(18%) patients.
In symptomatic SVT, the frequent symptoms were palpitation, chest discomfort and chest
pain, gastrointestinal symptoms including nausea and abdominal pain, dizziness and dyspnea in decreasing
frequency. P wave was discernible in 31(86%) of the 36 AVRT patients and 5(56%) of
the 9 AVNRT patients. Adenosine was effective in 19(91%) of 21 AVRT or AVNRT patients. No
significant side effect resulted from was occured by rapid bolus intravenous injection of adenosine.
Conclusion
: AVRT was most frequent in pediatric SVT patients. SVT frequently occured before
1 year of age and at 5 to 10 years of age. Primary atrial tachycardia mainly occured before 1 year
of age. |
| Key Words:
Supraventricular tachycardia, Arrhythmia, Adenosine |
|
PDF Links
Download Citation
