Trevo Retriever Registry is a prospective, open-label, consecutive enrollment, multi-center, international registry that may enroll a maximum of 2000 patients at up to 100 sites worldwide. Revascularization status will be assessed at the end of the procedure using the modified TICI (Thrombolysis in Cerebral Infarction)score. Additional data collection will include:
1. Day 90 mRS assessment
2. Day 90 all cause mortality
3. Neurological deterioration at 24 hours post procedure, defined as a four or more point increase in the NIHSS score from the baseline score
4. Rates of device and procedure related serious adverse events (AEs)
