Smoking and CHD

Q: Approximately how long does it take for cigarette smoking effects to be reversed for coronary heart disease? - select one

A) one year

B) two years

C) five years

D) ten years

Answer: B

Tobacco smoking is a reversible risk factor for CHD. The incidence of  Myocardial Infarction (MI) is increased sixfold in women but only threefold in men who smoke a pack per day. It is higher in inhalers compared to non-inhalers.

The recurrent infarction risk fell normalized to nonsmokers within two years.

#cardiology

References:

1. Benjamin EJ, Muntner P, Alonso A, et al. Heart Disease and Stroke Statistics-2019 Update: A Report From the American Heart Association. Circulation 2019; 139:e56.

2. Yusuf S, Hawken S, Ounpuu S, et al. Effect of potentially modifiable risk factors associated with myocardial infarction in 52 countries (the INTERHEART study): case-control study. Lancet 2004; 364:937.

3. Prescott E, Hippe M, Schnohr P, et al. Smoking and risk of myocardial infarction in women and men: longitudinal population study. BMJ 1998; 316:1043.