['Systemic inflammatory response syndrome (SIRS) is a generalized inflammatory state. The primary goal of the study was to determine whether differences exist in outcomes in SIRS and non-SIRS intravenous tissue-type plasminogen activator-treated patients.', 'Consecutive patients were retrospectively reviewed for the evidence of SIRS during their admission. SIRS was defined as the presence of ≥2 of the following: body temperature<36°C or >38°C, heart rate>90, respiratory rate>20, and white blood cells<4000/mm or >12 000 mm, or >10% bands. Patients diagnosed with infection (via positive culture) were excluded.', 'Of the 241 patients, 44 had evidence of SIRS (18%). Adjusting for pre-tissue-type plasminogen activator National Institutes of Health Stroke Scale, age, and race, SIRS remained a predictor of poor functional outcome at discharge (odds ratio [OR], 2.58; 95% confidence interval [CI], 1.16-5.73; P=0.0197).'] Is systemic inflammatory response syndrome in tissue-type plasminogen activator-treated patients associated with worse short-term functional outcome?