National practice patterns of obtaining informed consent for stroke thrombolysis

Background and Purpose-No standard approach to obtaining informed consent for stroke thrombolysis with tPA (tissuetype plasminogen activator) currently exists. We aimed to assess current nationwide practice patterns of obtaining informed consent for tPA. Methods-An online survey was developed and distributed by e-mail to clinicians involved in acute stroke care. Multivariable logistic regression analyses were performed to determine independent factors contributing to always obtaining informed consent for tPA. Results-Among 268 respondents, 36.7% reported always obtaining informed consent and 51.8% reported the informed consent process caused treatment delays. Being an emergency medicine physician (odds ratio, 5.8; 95% confdence interval, 2.9-11.5) and practicing at a nonacademic medical center (odds ratio, 2.1; 95% confdence interval, 1.0-4.3) were independently associated with always requiring informed consent. The most commonly cited cause of delay was waiting for a patient's family to reach consensus about treatment. Conclusions-Most clinicians always or often require informed consent for stroke thrombolysis. Future research should focus on standardizing content and delivery of tPA information to reduce delays.