Antithrombotic treatment and outcome after endovascular treatment and acute carotid artery stenting in stroke patients with atrial fibrillation

Johannes M Weller, Franziska Dorn, Julius N Meissner, Sebastian Stösser, Niklas M Beckonert, Julia Nordsiek, Christine Kindler, Christoph Riegler, Fee Keil, Gabor C Petzold, Felix J Bode, GSR-ET investigators, A Reich, O Nikoubashman, J Röther, B Eckert, M Braun, G F Hamann, E Siebert, C H Nolte, G Bohner, R M Eckert, J Borggrefe, P Schellinger, J Berrouschot, A Bormann, C Kraemer, H Leischner, M Petersen, F Stögbauer, T Boeck-Behrens, S Wunderlich, A Ludolph, K H Henn, C Gerloff, J Fiehler, G Thomalla, A Alegiani, J H Schäfer, S Tiedt, L Kellert, C Trumm, U Ernemann, S Poli, J Liman, M Ernst, K Gröschel, T Uphaus, Johannes M Weller, Franziska Dorn, Julius N Meissner, Sebastian Stösser, Niklas M Beckonert, Julia Nordsiek, Christine Kindler, Christoph Riegler, Fee Keil, Gabor C Petzold, Felix J Bode, GSR-ET investigators, A Reich, O Nikoubashman, J Röther, B Eckert, M Braun, G F Hamann, E Siebert, C H Nolte, G Bohner, R M Eckert, J Borggrefe, P Schellinger, J Berrouschot, A Bormann, C Kraemer, H Leischner, M Petersen, F Stögbauer, T Boeck-Behrens, S Wunderlich, A Ludolph, K H Henn, C Gerloff, J Fiehler, G Thomalla, A Alegiani, J H Schäfer, S Tiedt, L Kellert, C Trumm, U Ernemann, S Poli, J Liman, M Ernst, K Gröschel, T Uphaus

Abstract

Background: Oral anticoagulation (OAC) is the mainstay of secondary prevention in ischemic stroke patients with atrial fibrillation (AF). However, in AF patients with large vessel occlusion stroke treated by endovascular therapy (ET) and acute carotid artery stenting (CAS), the optimal antithrombotic medication remains unclear.

Methods: This is a subgroup analysis of the German Stroke Registry-Endovascular Treatment (GSR-ET), a prospective multicenter cohort of patients with large vessel occlusion stroke undergoing ET. Patients with AF and CAS during ET were included. We analyzed baseline and periprocedural characteristics, antithrombotic strategies and functional outcome at 90 days.

Results: Among 6635 patients in the registry, a total of 82 patients (1.2%, age 77.9 ± 8.0 years, 39% female) with AF and extracranial CAS during ET were included. Antithrombotic medication at admission, during ET, postprocedural and at discharge was highly variable and overall mortality in hospital (21%) and at 90 days (39%) was high. Among discharged patients (n = 65), most frequent antithrombotic regimes were dual antiplatelet therapy (DAPT, 37%), single APT + OAC (25%) and DAPT + OAC (20%). Comparing DAPT to single or dual APT + OAC, clinical characteristics at discharge were similar (median NIHSS 7.5 [interquartile range, 3-10.5] vs 7 [4-11], p = 0.73, mRS 4 [IQR 3-4] vs. 4 [IQR 3-5], p = 0.79), but 90-day mortality was higher without OAC (32 vs 4%, p = 0.02).

Conclusions: In AF patients who underwent ET and CAS, 90-day mortality was higher in patients not receiving OAC.

Registration: https://www.

Clinicaltrials: gov ; Unique identifier: NCT03356392.

Keywords: Antiplatelet therapy; Carotid artery stenting; Clinical outcome; Endovascular treatment; Large vessel occlusion; Mechanical thrombectomy; Oral anticoagulation; Stroke.

Conflict of interest statement

JMW, JNM, SS, NMB, JN, CH, CB, FK, GCP, and FJB report no competing interests. FD received research funding from Cerenovus, speakers honorary from Cerenovus and Acandis and serves as a proctor and consultant for Cerus Endovascular, Balt and Cerenovus.

© 2022. The Author(s).

Figures

Fig. 1
Fig. 1
Antithrombotic medication and outcome at 90-day follow-up. A Sankey diagram of antithrombotic medication upon baseline, periprocedural, postprocedural and at discharge. B Functional outcome of stroke patients with atrial fibrillation after endovascular treatment and carotid artery stenting at 90-day follow-up (n = 82). C Comparison of functional outcome for patients discharged with dual antiplatelet therapy (n = 24) compared to patients with oral anticoagulation in addition to antiplatelet therapy (n = 29), see respective groups at ‘discharge’ in Panel A. Abbreviations: APT, antiplatelet therapy; DAPT, dual antiplatelet therapy; OAC, oral anticoagulation, HEP, therapeutic dosing of heparin; uk, unknown

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Source: PubMed

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