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- W4367018599 abstract "Introduction Recent studies have shown beneficial effects of Carotid artery stenting (CAS) in acute ischemic stroke patients with tandem lesions (TL). However, stent placement requires the use of antiplatelet medications to prevent in‐stent thrombosis and re‐occlusion of the artery. This must be balanced with the risk of intracerebral hemorrhage. In this multicenter study, we aimed to investigate the safety and feasibility of using antiplatelet regimens in patients with anterior circulation stroke with TLs. Methods Patient level data were pooled from 17 centers and included patients with intracranial occlusion of ICA or M1/M2 segment of MCA with a concomitant extracranial ICA occlusion or stenosis ≥ 50%. Inclusion criteria were; age ≥ 18 years, EVT for intracranial occlusion, and underwent treatment for extracranial ICA lesions demonstrated on CTA and/or DSA. Patients were divided into groups according to the number of antiplatelets administered at the time of endovascular therapy (EVT) procedure into four groups including; 1) no antiplatelets, 2) single oral antiplatelet, 3) dual antiplatelets, and 4) intravenous antiplatelets (in combination of single or dual antiplatelets). Multivariable logistic regression models with multiple imputations were built to assess the association of primary outcome; symptomatic intracranial hemorrhage (sICH), and secondary outcomes including; modified Rankin Score (mRS) 0–2 at 90 days, and successful reperfusion (mTICI score ≥ 2b). Results A total of 682 patients were included. Of these, 138 (20.2%) did not receive any antiplatelet therapy, while 143 (20.97%) were treated with single oral, 207 (30.35%) with dual oral, and 194 (28.5%) with intravenous combined with single or dual antiplatelets. The rate of favorable outcome was non‐significantly higher in the dual (53%) and IV‐combination (54.4%) antiplatelets, as compared with single (38.9%) and without antiplatelet (38.6%) medications. In the multivariable model, after adjusting, there was no significant differences in the sICH (single: aOR: 1.07, CI: 0.62‐1.84, p = 0.8, dual: aOR: 1.18, CI: 0.70‐1.99, p = 0.55, IV‐combination: aOR: 1.01, CI: 0.57‐1.78, p = 0.98) and functional outcome at 90 days (single: aOR: 1.15, CI: 0.63‐2.12, p = 0.64, dual: aOR: 1.03, CI: 0.55‐1.9, p = 0.9, IV‐combination: aOR: 0.83, CI: 0.42‐1.64, p = 0.59) among the study groups. Interestingly, successful reperfusion (mTICI score ≥ 2b) was significantly higher in dual oral and IV‐combination antiplatelets (single: aOR: 1.14, CI: 0.61‐2.14, p = 0.69, dual: aOR: 4.82, CI: 2.23‐10.42, p = < 0.001, IV‐combination: aOR: 3.65, CI: 1.71‐7.79, p = 0.001). Conclusions Administration of antiplatelet medications during EVT was associated with successful reperfusion without increasing the rate of symptomatic hemorrhage in patients with anterior circulation LVO with TLs. Further large‐scale randomized studies are warranted to validate the optimal antiplatelet regimens during acute carotid artery stenting in patients with TLs." @default.
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- W4367018599 date "2023-03-01" @default.
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- W4367018599 title "Abstract Number ‐ 157: Effect of Antiplatelet Therapy in Acute Ischemic Stroke with Tandem Lesions" @default.
- W4367018599 doi "https://doi.org/10.1161/svin.03.suppl_1.157" @default.
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