BMJ  2004;328:980-983 (24 April), doi:10.1136/bmj.328.7446.980

Commentary

How acute and reversible are the cardiovascular risks of secondhand smoke?

¹ Office on Smoking and Health (K-50), Centers for Disease Control and Prevention, 4770 Buford Highway NE, Atlanta, GA 30341, USA

The first 150 words of the full text of this article appear below.

Could eating in a smoky restaurant precipitate an acute myocardial infarction in a non-smoker? As unlikely as this sounds, a growing body of scientific data suggests that this is possible. In this context, the results of the observational study in Helena, MT are provocative: hospital admissions for acute myocardial infarction declined by about 40% during the six months in which a comprehensive local ordinance on clean air was in effect, and rebounded after the ordinance was suspended.¹

Given the small size and observational design of the study, these findings might be discounted or even disregarded altogether. However, the study focuses attention on an interesting subset of literature on secondhand smoke and its consequences. We now have a considerable amount of epidemiological literature and laboratory data on the mechanisms by which relatively small exposures to toxins in tobacco smoke seem to cause unexpectedly large increases in the risk of acute cardiovascular . . . [Full text of this article]

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