RT Journal Article SR Electronic T1 Cryptogenic stroke JF Neurology: Clinical Practice FD Lippincott Williams & Wilkins SP 396 OP 405 DO 10.1212/CPJ.0000000000000736 VO 10 IS 5 A1 Shyam Prabhakaran A1 Steven R. Messé A1 Dawn Kleindorfer A1 Eric E. Smith A1 Gregg C. Fonarow A1 Haolin Xu A1 Xin Zhao A1 Barbara Lytle A1 Joaquin Cigarroa A1 Lee H. Schwamm YR 2020 UL http://cp.neurology.org/content/10/5/396.abstract AB Background Nationwide data on patients with cryptogenic stroke (CS) are lacking. We evaluated patient and hospital characteristics, in-hospital treatments, and discharge outcomes among patients with CS compared with other subtypes in the Get With The Guidelines (GWTG)-Stroke registry.Methods We identified patients with ischemic stroke (IS) admitted to GWTG-Stroke participating hospitals between January 1, 2016, and September 30, 2017, with documented National Institutes of Health Stroke Scale (NIHSS) scale and stroke etiology (cardioembolic [CE], large artery atherosclerosis [LAA], small vessel occlusion [SVO], other determined etiology [OTH], or CS). Using multivariable logistic regression, we compared hospital treatments and discharge outcomes by subtype, adjusted for patient and hospital characteristics.Results Among 316,623 patients from 1,687 hospitals, there were 63,301 (20.0%) patients with CS. In multivariable analysis, patients with CS received IV thrombolysis more often than other subtypes and had lower mortality than CE, LAA, and OTH but higher mortality than SVO. They were more likely to be discharged home than all other subtypes and be independent at discharge than LAA, OTH, or SVO.Conclusions In a large contemporary nationwide registry, CS accounted for 20% of ISs among patients with a documented stroke etiology. Patients with CS had a distinct profile of treatments and outcomes relative to other subtypes. Improved subtype documentation and further research into CS are warranted to improve care and outcomes for patients with stroke.