The "over the core wire" technique for detachable coil retrieval

Abstract

We report four cases of malpositioned detachable coil retrieval. In all cases, the malpositioned coils were retrieved without additional neurological deficits. The stretched core wire was grasped with a fixed-loop snare (Gooseneck microsnare), and the detachable coil was retrieved using an over the core wire technique with a hydrophilic microcatheter.