Journal
INTERNATIONAL JOURNAL OF STROKE
Volume 4, Issue 3, Pages 187-199Publisher
WILEY-BLACKWELL PUBLISHING, INC
DOI: 10.1111/j.1747-4949.2009.00276.x
Keywords
acute stroke therapy; CT scan; neurology; stroke; tPA; treatment
Categories
Funding
- GlaxoSmithKline
- National Institutes of Health (NIH), NHLBI NRSA [5-T32-HL007055-30]
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The purpose of this study was to systematically review and summarize prehospital and in-hospital stroke evaluation and treatment delay times. We identified 123 unique peer-reviewed studies published from 1981 to 2007 of prehospital and in-hospital delay time for evaluation and treatment of patients with stroke, transient ischemic attack, or stroke-like symptoms. Based on studies of 65 different population groups, the weighted Poisson regression indicated a 6 center dot 0% annual decline (P < 0 center dot 001) in hours/year for prehospital delay, defined from symptom onset to emergency department arrival. For in-hospital delay, the weighted Poisson regression models indicated no meaningful changes in delay time from emergency department arrival to emergency department evaluation (3 center dot 1%, P=0 center dot 49 based on 12 population groups). There was a 10 center dot 2% annual decline in hours/year from emergency department arrival to neurology evaluation or notification (P=0 center dot 23 based on 16 population groups) and a 10 center dot 7% annual decline in hours/year for delay time from emergency department arrival to initiation of computed tomography (P=0 center dot 11 based on 23 population groups). Only one study reported on times from arrival to computed tomography scan interpretation, two studies on arrival to drug administration, and no studies on arrival to transfer to an in-patient setting, precluding generalizations. Prehospital delay continues to contribute the largest proportion of delay time. The next decade provides opportunities to establish more effective community-based interventions worldwide. It will be crucial to have effective stroke surveillance systems in place to better understand and improve both prehospital and in-hospital delays for acute stroke care.
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