关键词: 机械血栓切除; 支架取栓装置; 缺血性卒中; 远端颅内导管

Abstract:

The endovascular treatment of acute ischemic stroke has become a standard therapeutic technique. The combination of multiple neuro-endovascular devices provides more possibilities for the improvement of thrombectomy technique. We will describe a modified retrieval technique by using a distal intracranial catheter (DIC) for the semi-retrieval of stent retriever during the thrombectomy procedure. The retrograde semi-retrieval technique involves completely unfolding of the stent retriever by pulling a Navien catheter and the partial resheath of a retrievable stent forming a tapered configuration by pushing the Navien catheter, which led to a embedding of thrombi into the strut, a securing of the clot within the stent, and a shorter distance for the clot to travel. This technique may lessen the occurrence of thrombus fragmentation and the injury of vessel wall. The retrograde semi-retrieval technique is an optional thrombectomy technique that may improve the efficiency of this procedure in the treatment of acute ischemic stroke.

Key words: Mechanical thrombectomy; Stent retriever; Ischemic stroke; Distal intracranial catheter