RT Journal Article SR Electronic T1 The dimension of preventable stroke in a large representative patient cohort JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP e2121 OP e2132 DO 10.1212/WNL.0000000000008573 VO 93 IS 23 A1 Boehme, Christian A1 Toell, Thomas A1 Mayer-Suess, Lukas A1 Domig, Lena A1 Pechlaner, Raimund A1 Willeit, Karin A1 Tschiderer, Lena A1 Seekircher, Lisa A1 Willeit, Peter A1 Griesmacher, Andrea A1 Knoflach, Michael A1 Willeit, Johann A1 Kiechl, Stefan YR 2019 UL http://n.neurology.org/content/93/23/e2121.abstract AB Objective To analyze the frequency of inadequately treated risk factors in a large representative cohort of patients with acute ischemic stroke or TIA and to estimate the proportion of events potentially avertable by guideline-compliant preventive therapy compared to the status quo.Methods A total of 1,730 patients from the Poststroke Disease Management STROKE-CARD trial (NCT02156778) were recruited between 2014 and 2017. We focused on 8 risk conditions amenable to drug therapy and 3 lifestyle risk behaviors and assessed pre-event risk factor control in retrospect.Results The proportion of patients with at least 1 inadequately treated risk condition was 79.5% (95% confidence interval [CI] 77.6%–81.4%) and increased to 95.1% (95% CI 94.1%–96.1%) upon consideration of the lifestyle risk behaviors. Risk factor control was worse in patients with recurrent vs first-ever events (p < 0.001), men vs women (p = 0.003), and patients ≤75 vs >75 years of age (p < 0.001). The estimated degree of stroke preventability ranged from 0.4% (95% CI 0.2%–0.6%) to 13.7% (95% CI 12.2%–15.2%) for the individual risk factors. Adequate control of the 5 most relevant risk factors combined (hypertension, hypercholesterolemia, atrial fibrillation, smoking, and overweight) would have averted ≈1 of 2 events or 1 in 4 with a highly conservative computation approach.Conclusions Our study confirms the existence of a considerable gap between risk factor control recommended by guidelines and real-world stroke prevention. Our study intends to increase awareness among physicians about stroke preventability and provides a quantitative basis for the emerging discussion on how to best tackle this challenge.ASCVD=atherosclerotic cardiovascular disease; AF=atrial fibrillation; BMI=body mass index; CI=confidence interval; mRS=modified Rankin Scale