Related Experiment Videos
Circadian patterns in coronary disease: the mournfulness of morning
1Department of Medicine, Montreal Heart Institute, Quebec.
Insights
Coronary artery disease events like angina, myocardial infarction, and sudden cardiac death show a circadian pattern. These cardiovascular events peak in the morning, suggesting a daily rhythm influences disease manifestation.
Area of Science:
- Cardiology
- Chronobiology
- Internal Medicine
Background:
- Circadian rhythms influence physiological processes.
- Cardiovascular diseases exhibit temporal patterns.
Purpose of the Study:
- To review the circadian patterns of coronary artery disease manifestations.
- To identify peak incidence times for different cardiac events.
Main Methods:
- Literature review of studies on coronary artery disease and circadian rhythms.
- Analysis of reported incidence patterns for angina, myocardial infarction, and sudden cardiac death.
Main Results:
- All reviewed coronary artery disease manifestations demonstrate a circadian pattern.
- Typical angina, myocardial infarction, and sudden cardiac death peak between 06:00 and noon.
- Variant angina shows an earlier peak incidence, from midnight to 09:00.
Conclusions:
- A daily rhythm significantly impacts the occurrence of coronary artery disease.
- Understanding these circadian patterns may aid in preventative strategies and treatment timing for cardiovascular events.
Abstract:
A circadian pattern is present for all of the manifestations of coronary artery disease discussed in this review; typical angina, variant angina, myocardial infarction and sudden cardiac death. The peak incidence for typical angina is from 06:00 to noon, and earlier, from midnight to 09:00 in variant angina. The peak incidence of myocardial infarction and sudden cardiac death are the same as for typical angina, even though different mechanisms are involved.