Abstract 352: Risk Index of Sudden Death by Long QT Syndrome and Wolff-Parkinson-White Syndrome in School
Objectives: To clarify the epidemiological risk of sudden death by QT prolongation and WPW syndrome in school life.
Materials and Methods: Based on the data reported to the mutual aid insurance system for school from 1993 to 2009, sudden deaths of long QT syndrome and WPW syndrome those who had been found by screening system in school. Epidemiological data was compared. Prevalence of both diseases found in the screening system in this period to calculate the risk index of sudden death was compared in both diseases.
Results: The prevalence of QT prolongation was 0.14 in 1,000. Fourteen sudden death cases were reported in 17 years, girls occupied 58.8%. Seven cases were in elementary school, and five cases in middle school students. Time zone is known in eight cases, six cases are in the morning, two cases in the afternoon.
The prevalence of WPW syndrome found by screening system was 1.07 in 1,000. Eighteen sudden death cases were reported in 17 years, girls occupied 16.7%, one case in elementary school; two cases in the junior high school, and 15 cases were high school students. Time zone is known in six cases, all cases occurred in the afternoon.
The number of sudden death in each disease divided by prevalence found by screening system was 8.6 in QT prolongation cases, and 1.2 in WPW syndrome cases.
Risk of sudden death by QT prolongation was about seven times of WPW syndrome.
Conclusion: This index is informative for a better understanding to the description of the risk need for attention of family, students and caregivers in schools.
- © 2013 by American Heart Association, Inc.