U.S. Army promotes PhD student Swiger to lieutenant colonel
Jean Kelley Lecture - Save the Date - June 8, 2016
Post-Doc Deborah Ejem explores link between spirituality, health care
Professor David Vance awarded five-year, $2.86-million grant by NIMH
Bowen receives grant for health policy research
PhD students Bahorski, Soistmann receive Ireland Research Travel Award
ONS, HPNA honor Bakitas as palliative care leader
PhD students Bray, Mumbower and Pavicevic named 2016 Jonas Scholars
Improving the health of older African American men in the Deep South

Safety and outcomes of intravenous thrombolysis in stroke mimics: a 6-year, single-care center study and a pooled analysis of reported series.

Tsivgoulis G, Alexandrov AV, Chang J, Sharma VK, Hoover SL, Lao AY, Liu W, Stamboulis E, Alexandrov AW, Malkoff MD, Frey JL.

Comprehensive Stroke Center, University of Alabama at Birmingham, Birmingham, AL, USA.



Efforts to increase the availability and shorten the time delivery of intravenous thrombolysis in patients with acute ischemic stroke carry the potential for tissue plasminogen activator administration in patients with diseases other than stroke, that is, stroke mimics (SMs). We aimed to determine safety and to describe outcomes of intravenous thrombolysis in SM.


We retrospectively analyzed stroke registry data of consecutive acute ischemic stroke admissions treated with intravenous thrombolysis over a 6-year-period. The admission National Institutes of Health Stroke Scale score, vascular risk factors, ischemic lesions on brain MRI (routinely performed as part of diagnostic work-up), and discharge modified Rankin Scale scores were documented. Initial stroke diagnosis in the emergency department was compared with final discharge diagnosis. SM diagnosis was based on the absence of ischemic lesions on diffusion-weighted imaging sequences in addition to an alternate discharge diagnosis. Symptomatic intracranial hemorrhage was defined as brain imaging evidence of intracranial hemorrhage with clinical worsening by National Institutes of Health Stroke Scale score increase of ≥4 points.


Intravenous thrombolysis was administered in 539 patients with acute ischemic stroke (55% men; mean age, 66 ± 15 years). Misdiagnosis of acute ischemic stroke was documented in 56 cases (10.4%; 95% CI, 7.9% to 13.3%). Conversion disorder (26.8%), complicated migraine (19.6%), and seizures (19.6%) were the 3 most common final diagnoses in SM. SMs were younger (mean age, 56 ± 13 years) and had milder baseline stroke severity (median National Institutes of Health Stroke Scale, 6; interquartile range, 4) compared with patients with confirmed acute ischemic stroke (mean age, 67 ± 14 years; median National Institutes of Health Stroke Scale, 8; interquartile range, 10; P<0.001). There was no case of symptomatic intracranial hemorrhage in SMs (0%; 95% CI, 0% to 5.5%); 96% of SMs were functionally independent at hospital discharge (modified Rankin Scale, 0 to 1).


Our single-center data indicate favorable safety and outcomes of intravenous thrombolysis administered to SM.

 Link to PubMed