The study is the second phase of Endovascular Treatment Key Technique and Emergency Work Flow Improvement of Acute Ischemic Stroke (ANGEL-ACT). During the first phase of the ANGEL-ACT (NCT03370939, a prospective multi-center registry study), problems and difficulties in the emergency work flow of acute ischemic stroke care in China have been identified, such as inadequate pre-hospital notification, delay of in-hospital diagnosis and treatment, difficulty in treatment consent, lack of professional training of endovascular treatment,etc., especially in the delay of in-hospital diagnosis and treatment. ANGEL-ACT II is a cluster randomized, parallel controlled study. The aim of this study was to evaluate the effectiveness of multi-modal medical quality improvement measures on the delay of hospital-level emergency work flow of acute ischemic stroke management as well as its impact on patient prognosis. The interventional measures include emergency work flow management app on smartphone, specialized training, assessment of quality improvement outcomes and feedback on a regular basis.
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Rate of reaching the standard arrival-to-groin Puncture time
Timeframe: From the time of arrival at the emergency department until the time of successful groin puncture, assessed up to 12 hours