PMID- 26888952 OWN - NLM STAT- MEDLINE DCOM- 20170327 LR - 20220331 IS - 1759-8486 (Electronic) IS - 1759-8478 (Linking) VI - 9 IP - 2 DP - 2017 Feb TI - Time to redefine success? TICI 3 versus TICI 2b recanalization in middle cerebral artery occlusion treated with thrombectomy. PG - 117-121 LID - 10.1136/neurintsurg-2015-012218 [doi] AB - BACKGROUND: The Thrombolysis in Cerebral Infarction (TICI) scale is the most widely applied scoring system to grade technical results of recanalizing therapies in acute ischemic stroke (AIS). TICI 2b and TICI 3 are conventionally subsumed as 'successful recanalization'. Previous studies reported conflicting results for the clinical relevance of achieving complete (TICI 3) versus 'almost' complete reperfusion (TICI 2b). OBJECTIVE: To examine if neurologic outcome differs significantly between TICI 2b and TICI 3 in patients with AIS with middle cerebral artery (MCA) occlusion treated 'successfully' with mechanical thrombectomy (MTE). METHODS: Retrospective analysis of prospectively collected data from 352 consecutive patients with isolated MCA occlusion subjected to MTE between January 2007 and July 2015. RESULTS: 262 of the 277 successfully treated patients had adequate follow-up and were included. Patients (n=119) in the TICI 3 group had a lower National Institutes of Health Stroke Scale score at discharge (NIHSS-DIS; median 5 vs 7, p=0.005), and showed higher rates of strong neurologic improvement (DeltaNIHSS>/=8 or NIHSS-DIS