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Passive smoking and cardiovascular risk

H Kritz1, P Schmid, H Sinzinger

  • 1Rehabilitation Center Engelsbad-Melanie, Baden, Lower Austria.

Archives of Internal Medicine
|October 9, 1995
PubMed
Summary

Passive smoking, or secondhand smoke exposure, is a significant risk factor for coronary heart disease (CHD). Evidence links environmental tobacco smoke to increased heart disease deaths and morbidity in nonsmokers.

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Area of Science:

  • Cardiovascular Science
  • Public Health
  • Environmental Health

Background:

  • The link between passive smoking and coronary heart disease (CHD) has been a subject of extensive research and debate.
  • Environmental tobacco smoke (ETS) exposure is a recognized contributor to heart disease morbidity and mortality.

Purpose of the Study:

  • To synthesize evidence on the relationship between passive smoking and coronary heart disease.
  • To evaluate the impact of environmental tobacco smoke on cardiovascular health.

Main Methods:

  • Analysis of 10 epidemiologic studies investigating passive smoking and heart disease.
  • Review of pathophysiological and biochemical data from short- and long-term ETS exposure.

Main Results:

  • ETS exposure is linked to an estimated 37,000 CHD deaths annually in the U.S.
  • A consistent dose-response relationship was observed between ETS exposure and heart disease risk.
  • Nonsmokers exhibit increased sensitivity to smoke, with cardiovascular effects noted.

Conclusions:

  • Passive smoking is a relevant and significant risk factor for coronary heart disease morbidity and mortality.
  • Sidestream smoke, a component of ETS, contains higher levels of harmful gases like carbon monoxide.
  • Observed physiological changes in nonsmokers exposed to ETS mirror those seen in active smokers.

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