Effect of atrial fibrillation on outcomes in patients with anterior circulation occlusion stroke receiving endovascular therapy

Front Aging Neurosci. 2023 Jun 15:15:1160265. doi: 10.3389/fnagi.2023.1160265. eCollection 2023.

Abstract

Objective: Atrial fibrillation is one of the major risk factors of ischemic stroke. Endovascular thrombectomy (EVT) has become the standard treatment for acute ischemic stroke with large vessel occlusion. However, data regarding the impact of AF on the outcome of patients with acute ischemic stroke treated with mechanical thrombectomy are controversial. The aim of our study was to determine whether atrial fibrillation modifies the functional outcome of patients with anterior circulation acute ischemic stroke receiving EVT.

Methods: We reviewed 273 eligible patients receiving EVT from January 2019 to January 2022 from 3 comprehensive Chinese stroke centers, of whom 221 patients were recruited. Demographics, clinical, radiological and treatment characteristics, safety outcomes, and functional outcomes were collected. Modified Rankin scale (mRS) score ≤ 2 at 90 days was defined as a good functional outcome.

Results: In our cohort, 79 patients (35.74%) were eventually found to have AF. Patients with AF were elder (70.08 ± 11.72 vs. 61.82 ± 13.48 years, p = 0.000) and less likely to be males (54.43 vs. 73.94%, p = 0.03). The significant reperfusion rate (modified thrombolysis in cerebral infarction 2b-3) was 73.42 and 83.80% in patients with and without AF, respectively (p = 0.064). The good functional outcome (90-day modified Rankin scale: 0 to 2) rate was 39.24 and 44.37% in patients with and without AF, respectively (p = 0.460) after adjusting multiple confounding factors. There was no difference in the presence of symptomatic intracerebral hemorrhage between the two groups (10.13 vs. 12.68%, p = 0.573).

Conclusion: Despite their older age, AF patients achieved similar outcomes as non-AF patients with anterior circulation occlusion treated with endovascular therapy.

Keywords: atrial fibrillation; cerebrovascular; endovascular thrombectomy (EVT); occlusion; patient outcome; stroke.

Grants and funding

This study was supported by Foshan Science and Technology Bureau (Grant No. 2220001005022), Medical Science Technology Research Foundation of Guangdong Province (Grant No. 20221027164016611), the Foshan 14th Five-Year Plan Key Discipline Foundation, China, the Guangdong provincial TCM Bureau Key Discipline Foundation, China, and Foshan Competitive Talent Support Project Fund (Brain-Heart Talent Project-Build the Brain-Heart Comorbidity Multi-disciplinary Medical Center). Fund Project of Health Bureau of Foshan City of Guangdong Province in 2023 (Grant No. 20230309).