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  • Title: Intravenous tissue plasminogen activator before endovascular treatment increases symptomatic intracranial hemorrhage in patients with occlusion of the middle cerebral artery second division: subanalysis of the RESCUE-Japan Registry.
    Author: Takagi T, Yoshimura S, Uchida K, Enomoto Y, Egashira Y, Yamagami H, Sakai N, Committee of Endovascular Salvage for Cerebral Ultra-acute Embolism (RESCUE)-Japan Study Group.
    Journal: Neuroradiology; 2016 Feb; 58(2):147-53. PubMed ID: 26494464.
    Abstract:
    INTRODUCTION: No previous study has investigated the relationship between intravenous tissue plasminogen activator (IV t-PA) and intracranial hemorrhage (ICH) according to the location of vessel occlusion. The aim of the present study was to investigate the relationship between preprocedural IV t-PA and endovascular treatment (EVT) and ICH according to the location of occlusion using data from the nationwide prospective registry of acute cerebral large vessel occlusion (LVO), the RESCUE-Japan Registry. METHODS: Among 1442 patients with acute LVO enrolled in the registry, we examined 410 patients who received EVT. Patients were divided into the following four groups according to the location of occlusion: the internal carotid artery (ICA), middle cerebral artery first division (M1), middle cerebral artery second division (M2), and vertebral artery (VA)/basilar artery (BA) groups. RESULTS: A total of 399 patients in whom the occlusion was located in these vessels were finally included. Any ICH (aICH) was identified in 127 (30.9%) patients, and symptomatic ICH (sICH) was identified in 20 (4.9%). Preprocedural IV t-PA did not increase the incidence of aICH in any group and tended to increase the incidence of sICH in only the M2 group. In multivariate analysis of the M2 group, IV t-PA was an independent risk factor for sICH. CONCLUSION: Preprocedural IV t-PA did not increase the incidence of ICH in total, but could increase the incidence of sICH in those with M2 occlusion. IV t-PA before EVT may be an independent risk factor for sICH in patients with M2 occlusion.
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