Abstract WP98: Utilization Of Perfusion Imaging For Acute Ischemic Stroke: Secular Trends And Effects On Outcomes Of Endovascular Treatment

• DOI: 10.1161/str.54.suppl_1.wp98
• Publication Date: 2023-02-02T10:16:12Z
• Authors: Jeong-Yoon LEE; Kyusik Kang; Yong Soo Kim; Soo Joo Lee; Jae G Kim; Jae-kwan Cha; Dae Hyun Kim; Byeol-A Yoon; Moon-Ku Han; Beom J Kim; Jihoon Kang; Jun Y Kim; Tai H Park; Sang-Soon Park; Jin-Kyo Choi; Kyung Bok Lee; JUN LEE; Doo Hyuk Kwon; Keun-sik Hong; Yong-jin Cho; Hong-kyun Park; Byung-Chul Lee; Kyung-Ho Yu; Mi S Oh; Minwoo Lee; Joon-Tae Kim; Kangho Choi; Dong-Eog Kim; Dong-Seok Gwak; Jay Chol Choi; Joonggoo Kim; Chul-Hoo Kang; Dong-Ick Shin; Kyu Sun Yum; Baik Kyun Kim; Hee-Yoon Chae; Jee-hyun Kwon; Wook-Joo Kim; Sung-il Sohn; Jeong-Ho Hong; Hyungjong Park; Seong Hwa Jang; Chul Ho Kim; Sanghwa Lee; JUNEYOUNG LEE; Ji Sung Lee; Jong-moo Park; Hee-joon BAE
• Keywords: Stroke; Penumbra; Acute stroke

Introduction: Perfusion imaging (PI) could guide decision-making for endovascular treatment (EVT) of acute ischemic stroke (AIS). However, PI was underused even in the US before pivotal EVT trials proved its usefulness 2018. This study aimed to describe secular trends utilization and investigate effectiveness PI-based real-world practice. Methods: Using a prospective multicenter (n=17) registry South Korea, we identified patients with AIS who presented within 24 hours from onset between 2011 2021. The period divided into 3 epochs: 2011-2014, 2015-2017, 2018-2021. population early (arrival 6 hours) late window (6-24 groups. Results: A total 51,650 (15,654 14,432 21,564 2018-2021) were analyzed. Utilization decreased overall group ( P trend <0.001); 43.3% 54.1% 40.1% 44.1% 38.4% 40.2% 2018-2021, respectively; but increased 31.3% 35.7% 36.5% Of 10,872 anterior large-vessel occlusion (aLVO), rate not different without (48.7% vs. 46.6%, =0.08) higher those than (29.8% 18.7%, <0.001). outcome (3-month mRS 0-2) (44.1% 41.8%, =0.21) (38.4% 39.2%, =0.81). Propensity score analysis instrumental variable per center as an instrument will be performed adjust imbalances PI. Conclusion: Between 2021 has arriving hours. Among aLVO, likely did window. seem affect outcomes, in-depth is required.