Time correlation of success recanalization for endovascular recanalization of medically refractory non-acute intracranial arterial occlusions.

Endovascular recanalization for sNAA-ICAO is technically feasible in reasonably selected patients. The perioperative safety is within the acceptable range. Before 51 days, the last symptoms to operation time, for every 10 days of delay, the probability of successful recanalization is reduced by 57%.