Evaluation of screening for myocardial ischaemia in women at cardiovascular risk

Cardiovascular disease is the primary cause of death in women. Prevention, screening and diagnosis are generally implemented at later stages and less frequently than in men, and provision of treatment is not optimal in women.

To assess the relevance of targeted screening for myocardial ischaemia in women with multiple risk factors, and to identify which specific factors target women more effectively.

We undertook a prospective observational study with retrospective data collection based on a cohort of symptomatic or asymptomatic women with multiple cardiovascular risk factors. All women underwent non-invasive diagnostic testing through the "Heart, arteries and women", healthcare pathway available at Lille University Hospital, between 1 January 2013 and 30 June 2014.

Screening was positive in 15.7% of the 287 participants. Thirty women had a coronary angiography: of these, 22 (73.3%) had no evidence of obstructive coronary artery disease. The independent predictive factors for positive screening were >5 years since menopause (odds ratio [OR] 3.9; P=0.0016); high-density lipoprotein cholesterol ≤0.5g/dL (OR 2.3; P=0.0356); and body mass index ≥30kg/m² (OR 3.7; P=0.0009). Symptoms were predictive of positive screening (P=0.010), but were mostly atypical. Based on these observations, we developed a clinical coronary score to target screening more efficiently (area under the curve 0.733). Positive screening resulted in low rates of revascularization (16.6%), but a significant increase in the prescription of statins (P=0.002), antiplatelet agents (P<0.0001) and beta-blockers (P=0.024).

Screening for myocardial ischaemia among selected women at risk of cardiovascular disease can be useful to improve medical treatment.