Lacunar Strokes in Patients With Diabetes Mellitus: Risk Factors, Infarct Location, and Prognosis

Background and Purpose—Diabetes mellitus is an independent risk factor for lacunar strokes. Few data are available regarding patient features, infarct location, and recurrent vascular events for patients with diabetes mellitus with lacunar stroke. Methods—We compared features at study entry and prognosis during 3.6 years of follow-up of patients with diabetes mellitus versus patients without diabetes mellitus with recent lacunar stroke participating in the Secondary Prevention of Small Subcortical Strokes (SPS3) randomized trial. Results—Among the 3020 participants, the prevalence of diabetes mellitus was 37% with a mean duration of 11 years. Diabetes mellitus was independently associated with slightly younger age (63 versus 64 years; P<0.001), Hispanic ethnicity (36% versus 28%; P<0.0001), ischemic heart disease (11% versus 6%; P=0.002), and peripheral vascular disease (5% versus 2%; P<0.001). Patients with diabetes mellitus more frequently had intracranial stenosis ≥50% (P<0.001), infarcts involving the...