Elsevier

Atherosclerosis

Volume 239, Issue 1, March 2015, Pages 260-267
Atherosclerosis

Review
Sex differences in coronary artery disease: Pathological observations

https://doi.org/10.1016/j.atherosclerosis.2015.01.017Get rights and content

Highlights

  • We reviewed sex differences in coronary artery disease (CAD), with emphasis on coronary atherosclerotic disease.

  • CAD remains the most common cause of death in both men and women.

  • Most of the risk factors for CAD are similar for men and women, except smoking has a greater detrimental effect in women.

  • Young women tend to have plaque erosion while older women have plaque rupture.

Abstract

Cardiovascular disease (CVD) remains the most frequent cause of death in both men and women. Many studies on CVD have included mostly men, and the knowledge about coronary artery disease (CAD) in women has largely been extrapolated from studies primarily focused on men. The influence of various risk factors is different between men and women; untoward effects of smoking of CAD are greater in women than men. Furthermore, the effect of the menopause is important in women, with higher incidence of plaque erosion in young women versus greater incidence of plaque rupture in older women. This review focuses on differences in plaque morphology in men and women presenting with sudden coronary death and acute myocardial infarction.

Section snippets

Nonatherosclerotic coronary artery disease

Although a large prevalence of CVD in women is associated with coronary atherosclerosis, less common causes of acute coronary syndromes in women include spontaneous coronary dissections (SCAD), Takayasu's syndrome, and Takotsubo cardiomyopathy [7]. Takayasu's syndrome typically occurs in young women, which is predominantly associated with aortitis involving the aorta and its main branches, however coronary arteries may be less frequently involved; other rare causes include cocaine vasculitis

Risk factors

Most of the risk factors for coronary artery disease (CAD) are similar for men and women. These may be divided into modifiable risk factors such as hypertension, diabetes mellitus, dyslipidemia, smoking, physical inactivity, obesity and diet, whereas the nonmodifiable are age, gender, and family history. However, the role of menopause is unique to women. CAD is unusual in premenopausal women, particularly in the absence of other risk factors [11]. On the other hand, the postmenopausal state as

Effect of menopause in coronary atherosclerosis

Coronary artery disease in women lags behind men by 10–15 years. This delay is believed to be caused by the protective effect of estrogen on coronary atherosclerosis and a decreased prevalence of coronary risk factors in young women [29]. We studied 51 cases of sudden coronary death and 47cases of non-coronary deaths in women and these were classified on the basis of histologic features including acute plaque rupture, healed plaque rupture, erosion, and vulnerable plaque (TCFA) [29]. An age of

Acute myocardial infarction in women

Arbustini et al., have reported the largest collection of patients dying from acute myocardial infarction (AMI) without thrombolytic therapy examined at one institution by one individual between 1985 and 1996 (Table 3) [32]. Of the 291 patients with AMI (women 107, men 184) 217 had rupture (mean age 68 ± 11 years) and 74 had erosion (mean age 70 ± 9 years). Erosions were more common in women (n = 40 [37%]) than in men (34 [18%]), while heart ruptures and scars were not significantly different

Conclusions

Cardiovascular disease remains the most common cause of death in both men and women in the world, and myocardial ischemia, stroke and peripheral vascular disease is by far the most frequent underlying mechanism. Most of the underlying systemic risk factors for coronary artery disease are similar between men and women. However, the impact of various risk factors is different between men and women, with smoking being a stronger risk in women than men, especially in younger women. Furthermore, the

Disclosures

Dr. Virmani receives research support from Abbott Vascular, BioSensors International, Biotronik, Boston Scientific, Medtronic, MicroPort Medical, OrbusNeich Medical, SINO Medical Technology, and Terumo Corporation; has speaking engagements with Merck; receives honoraria from Abbott Vascular, Boston Scientific, Lutonix, Medtronic, and Terumo Corporation; and is a consultant for 480 Biomedical, Abbott Vascular, Medtronic, and W.L. Gore. The other authors report no conflicts of interest relevant

Conflict of interest

None.

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