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Published on: June 20, 2020
Two cases of short QT interval.
Manabu Moriya1, Shinji Seto, Katsusuke Yano
1Department of Cardiovascular Medicine, Course of Medical and Dental Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
The incidence of short QT interval is rare, affecting 0.01% of individuals. This condition may be linked to underlying heart disease, not genetic factors or drug use.
Area of Science:
- Cardiology
- Epidemiology
- Electrophysiology
Background:
- The epidemiology of short QT interval is not well understood.
- This study aimed to determine the incidence and clinical characteristics of short QT interval using a longitudinal cohort.
Observation:
- A total of 19,153 subjects were analyzed longitudinally from 1958 to 2003.
- Short QT interval was defined as QTc less than 350 ms.
Findings:
- Two subjects (0.01%) met the criteria for short QT interval.
- The incidence was estimated at 0.39 per 100,000 person-years.
- Neither case had a family history of sudden cardiac death or relevant drug use.
Implications:
- Short QT interval appears rare in the general population.
- Observed cases suggest potential links between short QT interval and organic or electrophysiological heart disease.
- Further research is needed to understand the clinical significance and management of short QT interval.
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