PMID- 32431659 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 1664-2295 (Print) IS - 1664-2295 (Electronic) IS - 1664-2295 (Linking) VI - 11 DP - 2020 TI - Cerebral Hemodynamic Changes After Endovascular Recanalization of Symptomatic Chronic Intracranial Artery Occlusion. PG - 318 LID - 10.3389/fneur.2020.00318 [doi] LID - 318 AB - Objective: We performed this study to evaluate the hemodynamic changes over time after successful endovascular recanalization in patients with symptomatic chronic intracranial artery occlusion (CIAO). Materials and Methods: We included 20 patients with symptomatic CIAO in a high-volume stroke center from June 2014 to June 2019. All subjects were evaluated with CT perfusion (CTP) studies before and after the recanalization. The relative cerebral blood flows (rCBFs) in perforating artery territory (PAT) and cortical artery territory (CAT) of occluded arteries were compared before and after the recanalization. The patients were categorized into subgroups based on the time interval from revascularization to post-procedural CTP, occlusion sites, and restenosis status. The proportion of rCBF change (rCBFc%) was compared in variable subgroups. Results: The rCBF increased significantly from 0.52 to 0.71 in PAT (P < 0.001) and from 0.59 to 0.85 in CAT (P < 0.001) after recanalization, and there were also statistical differences in variable subgroups except for those with restenosis. The median and interquartile range (IQR) of rCBFc% were 35.2 and 18.6-56.6%. For patients with short-term follow-up (55.2%), the rCBFc% was relatively higher than that in patients with mid-term (35.4%) and long-term follow-up (32.7%), although without statistical difference (P = 0.273). For patients with restenosis, the rCBFc% was significantly lower than that in patients without restenosis (18.5 vs. 37.3%, P = 0.008). Conclusions: In patients with symptomatic CIAO, the CBF may increase and be relatively stable over time after successful recanalization except for restenosis. CI - Copyright (c) 2020 Kang, Yang, Gong, Chen, Gu, Ma, Miao, Zhao and Ma. FAU - Kang, Kaijiang AU - Kang K AD - Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China. AD - China National Clinical Research Center for Neurological Diseases, Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China. FAU - Yang, Bo AU - Yang B AD - China National Clinical Research Center for Neurological Diseases, Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China. AD - Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China. AD - Department of Neurology, Beijing Jiangong Hospital, Beijing, China. FAU - Gong, Xiping AU - Gong X AD - Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China. AD - China National Clinical Research Center for Neurological Diseases, Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China. FAU - Chen, Xing AU - Chen X AD - Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China. FAU - Gu, Weibin AU - Gu W AD - China National Clinical Research Center for Neurological Diseases, Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China. AD - Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China. FAU - Ma, Guofeng AU - Ma G AD - China National Clinical Research Center for Neurological Diseases, Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China. AD - Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China. FAU - Miao, Zhongrong AU - Miao Z AD - China National Clinical Research Center for Neurological Diseases, Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China. AD - Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China. FAU - Zhao, Xingquan AU - Zhao X AD - Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China. AD - China National Clinical Research Center for Neurological Diseases, Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China. FAU - Ma, Ning AU - Ma N AD - China National Clinical Research Center for Neurological Diseases, Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China. AD - Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China. LA - eng PT - Journal Article DEP - 20200505 PL - Switzerland TA - Front Neurol JT - Frontiers in neurology JID - 101546899 PMC - PMC7214835 OTO - NOTNLM OT - CT perfusion OT - hemodynamics OT - intracranial occlusion OT - recanalization OT - stroke EDAT- 2020/05/21 06:00 MHDA- 2020/05/21 06:01 PMCR- 2020/05/05 CRDT- 2020/05/21 06:00 PHST- 2019/10/31 00:00 [received] PHST- 2020/03/31 00:00 [accepted] PHST- 2020/05/21 06:00 [entrez] PHST- 2020/05/21 06:00 [pubmed] PHST- 2020/05/21 06:01 [medline] PHST- 2020/05/05 00:00 [pmc-release] AID - 10.3389/fneur.2020.00318 [doi] PST - epublish SO - Front Neurol. 2020 May 5;11:318. doi: 10.3389/fneur.2020.00318. eCollection 2020.