TAB-TICI Score: Successful Recanalization Score After Endovascular Thrombectomy in Acute Stroke.

Abstract

Background and Purpose: Successful reperfusion therapy is supposed to be comprehensive and validated beyond the grade of recanalization. This study aimed to develop a novel scoring system for defining the successful recanalization after endovascular thrombectomy. Methods: We analyzed the data of consecutive acute stroke patients who were eligible to undergo reperfusion therapy within 24 h of onset and who underwent mechanical thrombectomy using a nationwide multicenter stroke registry. A new score was produced using the predictors which were directly linked to the procedure to evaluate the performance of the thrombectomy procedure. Results: In total, 446 patients in the training population and 222 patients in the validation population were analyzed. From the potential components of the score, four items were selected: Emergency Room-to-puncture time (T), adjuvant devices used (A), procedural intracranial bleeding (B), and post-thrombectomy reperfusion status [Thrombolysis in Cerebral Infarction (TICI)]. Using these items, the TAB-TICI score was developed, which showed good performance in terms of discriminating early neurological aggravation [AUC 0.73, 95% confidence interval (CI) 0.67-0.78, P < 0.01] and favorable outcomes (AUC 0.69, 95% CI 0.64-0.75, P < 0.01) in the training population. The stability of the TAB-TICI score was confirmed by external validation and sensitivity analyses. The TAB-TICI score and its derived grade of successful recanalization were significantly associated with the volume of thrombectomy cases at each site and in each admission year. Conclusion: The TAB-TICI score is a valid and easy-to-use tool to more comprehensively define successful recanalization after endovascular thrombectomy in acute stroke patients with large vessel occlusion.

• Authors: Woo-Keun Seo, Hyo Suk Nam, Jong-Won Chung, Young Dae Kim, Keon-Ha Kim, Oh Young Bang, Byung Moon Kim, Gyeung-Moon Kim, Pyoung Jeon, Ji Hoe Heo
• Journal: Frontiers in neurology (Front Neurol) Vol. 12 Pg. 692490 ( 2021) ISSN: 1664-2295 [Print] Switzerland
• PMID: 34721254 (Publication Type: Journal Article)
• Copyright: Copyright © 2021 Seo, Nam, Chung, Kim, Kim, Bang, Kim, Kim, Jeon and Heo.