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Epidemiology of smoking-induced cardiovascular disease
1University of California San Diego School of Medicine, San Diego, CA 92108, USA. dburns@ucsd.edu
Insights
Cigarette smoking significantly elevates risks for major cardiovascular diseases like heart attack and stroke. Quitting smoking lowers these risks over time, though some elevated danger may persist for years.
Area of Science:
- Cardiovascular Medicine
- Public Health
- Epidemiology
Background:
- Cigarette smoking is a leading preventable cause of cardiovascular morbidity and mortality.
- Smoking contributes to atherosclerosis and thrombosis, key mechanisms in cardiovascular disease development.
Purpose of the Study:
- To summarize the cardiovascular risks associated with cigarette smoking.
- To discuss the impact of smoking intensity, duration, and cessation on cardiovascular health.
Main Methods:
- Literature review and synthesis of existing epidemiological data on smoking and cardiovascular diseases.
- Analysis of risk factors including smoking amount, duration, and cessation timelines.
Main Results:
- Cardiovascular risks, including coronary heart disease, stroke, and aortic aneurysm, are strongly linked to cigarette smoking.
- Risks increase with smoking amount and duration; lower-yield cigarettes do not mitigate these risks.
- Pipe and cigar smoking may confer lower cardiovascular risk compared to cigarettes.
- Cessation of cigarette smoking leads to reduced cardiovascular risk, though elevated risks can persist for over a decade.
Conclusions:
- Cigarette smoking poses substantial and dose-dependent cardiovascular risks.
- Smoking cessation is crucial for reducing cardiovascular disease burden.
- Further research may explore long-term risk profiles after cessation and alternative tobacco product risks.
Abstract:
Cigarette smoking is a major cause of coronary heart disease, stroke, aortic aneurysm, and peripheral vascular disease. The risk is manifest both as an increased risk for thrombosis of narrowed vessels and as an increased degree of atherosclerosis in those vessels. The cardiovascular risks owing to cigarette smoking increase with the amount smoked and with the duration of smoking. Risks are not reduced by smoking cigarettes with lower machine-measured yields of tar and nicotine, but those who have only smoked pipes or cigars seem to have a lower risk for cardiovascular diseases. Cessation of cigarette smoking reduces disease risks, although risks may remain elevated for a decade or more after cessation.