Differential Impact of Cigarette Smoking on Prognosis in Women and Men Undergoing Percutaneous Coronary Intervention

Li Xia Yang1, Zhi Jian Wang1, Dong Mei Shi1

  • 1Department of Cardiology, 12th Ward, Beijing Anzhen Hospital, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic Disease, Clinical Center for Coronary Heart Disease, Capital Medical University, Beijing, China.

Angiology
|November 29, 2019
PubMed

Insights

Smoking significantly increases major adverse cardiovascular events (MACE) after percutaneous coronary intervention (PCI) in both men and women. However, the excess risk of MACE due to smoking is substantially higher for women compared to men.

Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Public Health

Background:

  • Smoking is a major risk factor for cardiovascular disease.
  • Percutaneous coronary intervention (PCI) is a common procedure for treating coronary artery disease.
  • The impact of smoking on clinical outcomes after PCI may differ between sexes.

Purpose of the Study:

  • To compare the effects of smoking on major adverse cardiovascular events (MACE) in men and women undergoing PCI.
  • To assess the differential risk of MACE associated with smoking in male versus female patients.

Main Methods:

  • Prospective follow-up of 10,369 patients undergoing elective PCI.
  • Stratification of patients by smoking status and sex.
  • Assessment of long-term MACE (all-cause death, myocardial infarction, target vessel revascularization) over 3 years.

Main Results:

  • A lower prevalence of smoking was observed in women (11.0%) compared to men (66.7%) undergoing PCI.
  • Smoking significantly increased MACE in both sexes (men: 10.8% vs. 8.1%; women: 23.2% vs. 6.4%).
  • Adjusted analysis revealed a significantly greater effect of smoking on MACE in women (HR: 3.68) compared to men (HR: 1.35), with a significant interaction (P = .026).

Conclusions:

  • Despite lower smoking prevalence, women undergoing PCI experience a disproportionately higher excess risk of MACE when they smoke compared to men.
  • Smoking cessation interventions should be strongly emphasized for all patients undergoing PCI, with particular attention to women.
  • Sex-specific considerations may be warranted when evaluating the impact of smoking on cardiovascular outcomes post-PCI.

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