5 Performance measures are being increasingly used for quality improvement, exter- nal reporting, regulatory oversight by hospital and program accreditation groups, and possibly pay-for-performance pro- Performance measures differ from guidelines in that most rigorous guidelines describe a desirable treatment or pro- cess of care that is derived from a review of existing medical evidence using standardized criteria and levels of evidence.7 However, guidelines traditionally do not take the next step of describing specifically how their implementation will be assessed in a quantitative way in order to assess compliance. Rigorous performance measures often take the strongest high- est-level guidelines and provide a method for directly measur- ing and reporting them with the goal of improving healthcare In addition to being evidence-based, they need to be developed with attention to feasibility and whether they are actionable and clearly interpretable.9 In 2014, the AHA/ASA published Clinical Performance Measures for Adults Hospitalized With Acute Ischemic This document outlined 15 proposed performance measures for acute ischemic stroke created with the use of a standardized methodology for performance measure Clinical Performance Measures for Adults Hospitalized With Intracerebral Hemorrhage Performance Measures for Healthcare Professionals From the American Heart Association/American Stroke Association J. Claude Hemphill III, MD, MAS, FAHA, Chair; Opeolu M. Adeoye, MD, MS, FAHA; David N. Alexander, MD, FAHA; Anne W. Alexandrov, PhD, AGACNP-BC, ANVP-BC, CCRN; Sepideh Amin-Hanjani, MD, FAHA; Mary Cushman, MD, MSc, FAHA; Mary G. George, MD, MSPH, FAHA*; Peter D. LeRoux, MD; Stephan A. Mayer, MD; Adnan I. Qureshi, MD; Jeffrey L. Saver, MD, FAHA; Lee H. Schwamm, MD, FAHA; Kevin N. Sheth, MD, FAHA; David Tirschwell, MD, MSc, FAHA; on behalf of the AHA/ASA Stroke Performance Oversight Committee 2018 American Heart Association, Inc. Stroke is available at https://www.ahajournals.org/journal/str DOI: 10.1161/STR.0000000000000171 *The findings and conclusions in this manuscript are those of the author and do not necessarily represent the official position of the Centers for Disease Control and Prevention. 