Stent Retriever Thrombectomy of Small Caliber Intracranial Vessels Using pREset LITE: Safety and Efficacy

• DOI: 10.1007/s00062-016-0497-0
• Publication Date: 2016-01-21T09:54:36Z
• Authors: W. Kurre; M. Aguilar-Pérez; R. Martinez-Moreno; E. Schmid; H. Bäzner; H. Henkes
• Keywords: Caliber

Few devices are approved for thrombectomy of distal vessel branches, and clinical experience is limited. Here we report our with pREset LITE small intracranial vessels.From an institutional database selected consecutive patients treated occlusion (≤ 2 mm), target vessels. Recanalization success was measured by applying the modified Thrombolysis In Cerebral Infarction (mTICI) score. To assess safety, recorded device-related procedural events potentially hemorrhages on follow-up imaging. Infarcts in dependent territory served as a measure efficacy.Of 536 between August 2013 March 2015, 76 met inclusion criteria. used 90 branches average diameter 1.6 mm (1.3-2.0 mm). An mTICI score ≥ 2b achieved 70.0 %. Procedural consisted 5.6 % significant vasospasm, 2.2 suspected dissections, downstream emboli, 1.1 self-limiting extravasations. On posttreatment imaging parenchymal type I (PHI) 13.3 focal subarachnoid hemorrhage (SAH) were device related, but all these remained asymptomatic. After successful recanalization, 33.3 developed no ischemia while 41.7 partial infarct, 25 complete infarct. Successful recanalization significantly increased chance to develop or only infarct compared infarction (p = 0.003, p 0.013).Thrombectomy vessels feasible good reasonable safety margins. reduces risk territory. The impact overall outcome remains be determined.