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[Circadian variations of sudden death]
S Hayashi1, H Toyoshima, K Miyanishi
1Department of Public Health, Niigata University School of Medicine.
[Nihon Koshu Eisei Zasshi] Japanese Journal of Public Health
|February 1, 1992
Summary
Sudden death (SD) shows significant daily rhythms, peaking in the morning and evening, with variations by age and season. Elderly individuals exhibit pronounced circadian patterns in sudden death incidence.
Area of Science:
- Cardiology
- Chronobiology
- Epidemiology
Context:
- Sudden death (SD) is a critical public health concern.
- Understanding temporal patterns of SD is crucial for prevention and intervention.
- Previous research suggests potential daily variations in cardiovascular events.
Purpose:
- To investigate the circadian variation of sudden death (SD) in Niigata prefecture.
- To analyze periodicity in SD onset based on age, sex, and season.
- To identify specific time windows with increased risk for SD.
Summary:
- Sudden death (SD) demonstrated a statistically significant circadian variation, with lower incidence from 0-4 A.M. and higher incidence from 6-8 A.M. and 6-8 P.M.
- No significant circadian variation was observed during summer, unlike other seasons.
- Significant circadian variation in SD was noted in senior (55-74 years) and elderly (≥75 years) groups, with a notable evening peak in the elderly.
Impact:
- Findings highlight age-specific circadian patterns in sudden death.
- The study identifies high-risk time periods for sudden death, particularly in older populations.
- Results may inform targeted public health strategies and clinical management for sudden death prevention.