By current guidelines, statin treatment decisions depend on multiple risk factor algorithms (e.g., pooled cohort equations [PCEs]). By available PCEs most older middle-aged women are statin eligible. But several studies cast doubt on reliability of available PCEs for ASCVD risk assessment. An alternative method for risk assessment is a coronary artery calcium (CAC) score. Many older women have zero CAC, which equates to low risk for ASCVD; these women can delay statin therapy for several years before re-scanning. When CAC is 1-99 Agatston units, risk is only borderline high and statin delay also is an option until re-scanning. When CAC is > 100 Agatston units, risk is high enough to warrant a statin. In most women, CAC is the best guide to treatment decisions. In high-risk women (e.g., diabetes and severe hypercholesterolemia), generally are indicated, but CAC can assist in risk assessment, but other risk factors also can aid in treatment decisions.
Keywords: Coronary artery calcium score; Statins; Women.
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