• Rui Shao, Zengna Wang, Hongfeng Shi, Yan Li, Yingle Zhuang, Juan Xu, and Min Xu.
• Neurological Intensive Care Department, Shengli Oilfield Central Hospital, Dongying City, Shandong Province, China.
• Medicine (Baltimore). 2022 Jul 1; 101 (26): e29322e29322.

AbstractThere is conflicting information regarding the impact of chronic atrial fibrillation (AF) on the outcomes of thrombolyzed patients with stroke. This study was designed to identify high-risk patients with chronic AF who had undergone thrombolysis treatment and to explore whether the baseline National Institutes of Health Stroke Scale (NIHSS) could be used to distinguish poor clinical outcomes in thrombolyzed patients. A total of 164 acute ischemic stroke patients with chronic AF were enrolled in this study. The patients were categorized as having poor or favorable outcomes. A favorable 90-day outcome was defined as a modified Rankin Scale (mRS) score ≤2. Our study showed that the baseline NIHSS score of patients with poor functional recovery (mRS >2) was significantly higher than that of patients with favorable outcomes (median 16 vs 12). Receiver operating characteristic (ROC) curve analysis of mRS score showed that a baseline NIHSS score of 14 was the optimal threshold for predicting unfavorable outcomes in patients with chronic AF. Multivariate logistic regression analysis showed that baseline NIHSS score >14 was independently associated with poor outcomes (odds ratio = 4.182, 95% confidence interval 2.092-8.361). Our study showed that stroke severity modified the effect of chronic AF on the outcome of thrombolytic therapy. The approach of stratifying stroke severity may be used to evaluate treatment strategies for decision making in intravenous thrombolytic therapy for acute stroke with chronic AF.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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