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      Timeliness of tissue-type plasminogen activator therapy in acute ischemic stroke: patient characteristics, hospital factors, and outcomes associated with door-to-needle times within 60 minutes.

      Circulation

      Acute Disease, Aged, Aged, 80 and over, American Heart Association, Brain Ischemia, drug therapy, epidemiology, Emergency Medical Services, standards, Female, Fibrinolytic Agents, administration & dosage, Guideline Adherence, Humans, Male, Middle Aged, Outcome Assessment (Health Care), statistics & numerical data, Practice Guidelines as Topic, Risk Factors, Stroke, Time Factors, Tissue Plasminogen Activator, United States

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          Abstract

          The benefits of intravenous tissue-type plasminogen activator (tPA) in acute ischemic stroke are time dependent, and guidelines recommend an arrival to treatment initiation (door-to-needle) time of ≤60 minutes. Data from acute ischemic stroke patients treated with tPA within 3 hours of symptom onset in 1082 hospitals participating in the Get With the Guidelines-Stroke Program from April 1, 2003, to September 30, 2009 were studied to determine frequency, patient and hospital characteristics, and temporal trends in patients treated with door-to-needle times ≤60 minutes. Among 25 504 ischemic stroke patients treated with tPA, door-to-needle time was ≤60 minutes in only 6790 (26.6%). Patient factors most strongly associated with door-to-needle time ≤60 minutes were younger age, male gender, white race, or no prior stroke. Hospital factors associated with ≤60 minute door-to-needle time included greater annual volumes of tPA-treated stroke patients. The proportion of patients with door-to-needle times ≤60 minutes varied widely by hospital (0% to 79.2%) and increased from 19.5% in 2003 to 29.1% in 2009 (P<0.0001). Despite similar stroke severity, in-hospital mortality was lower (adjusted odds ratio, 0.78; 95% confidence interval, 0.69 to 0.90; P<0.0003) and symptomatic intracranial hemorrhage was less frequent (4.7% versus 5.6%; P<0.0017) for patients with door-to-needle times ≤60 minutes compared with patients with door-to-needle times >60 minutes. Fewer than one-third of patients treated with intravenous tPA had door-to-needle times ≤60 minutes, with only modest improvement over the past 6.5 years. These findings support the need for a targeted initiative to improve the timeliness of reperfusion in acute ischemic stroke.

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          Journal
          21311083
          10.1161/CIRCULATIONAHA.110.974675

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