Iodinated Contrast Agents Reduce the Efficacy of Intravenous Recombinant Tissue-Type Plasminogen Activator in Acute Isch
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ORIGINAL ARTICLE
Iodinated Contrast Agents Reduce the Efficacy of Intravenous Recombinant Tissue-Type Plasminogen Activator in Acute Ischemic Stroke Patients: a Multicenter Cohort Study Zhicai Chen 1 & Chao Xu 1 & Wansi Zhong 1 & Xiaoxian Gong 1 & Haitao Hu 1 & Xuting Zhang 1 & Yi Chen 1 & Qingqing Li 1 & Zhongyu Luo 1 & Zhuojian Chen 2 & Min Lou 1 Received: 30 May 2020 / Revised: 23 August 2020 / Accepted: 30 August 2020 # Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract This study aimed to investigate whether the application of iodinated contrast agents before intravenous (IV) recombinant tissue plasminogen activator (rt-PA) reduces the efficacy in acute ischemic stroke (AIS) patients. To determine whether the application of iodinated contrast agents before intravenous rt-PA reduces the efficacy in AIS patients. We analyzed our prospectively collected data of consecutive AIS patients receiving IV rt-PA treatment in the MISSION CHINA study. Clinical outcome at 3 months was assessed with modified Rankin Scale (mRS) score and dichotomized into good outcome (0–2) and poor outcome (3–6). Symptomatic intracerebral hemorrhage (sICH) was defined as cerebral hemorrhagic transformation in combination with clinical deterioration of National Institutes of Health Stroke Scale (NIHSS) score ≥ 4 points at 24-h. We performed logistic regression analysis and propensity score matching analysis to investigate the impact of iodinated contrast agents before IV rt-PA on poor outcome and sICH, respectively. A total of 3593 patients were finally included, and iodinated contrast agents were used before IV rt-PA among 859 (23.9%) patients. Patients in the iodinated contrast group were more likely to result in poor outcome (39.9% vs 33.4%, P = 0.001) and sICH (3.4% vs 1.5%, P < 0.001), compared with non-contrast group. Binary logistic regression analysis revealed that the application of iodinated contrast agents was independently associated with poor outcome (OR 1.342; 95% CI 1.103–1.631; P = 0.003) and sICH (OR 1.929; 95% CI 1.153–3.230; P = 0.012), respectively. After propensity score matching, the application of iodinated contrast agents was still independently associated with poor outcome (OR 1.246; 95% CI 1.016–1.531; P = 0.034) and sICH (OR 1.965; 95% CI 1.118–3.456; P = 0.019). Applying iodinated contrast agents before IV rt-PA may reduce the thrombolytic efficacy in AIS patients. Further benefit–risk analysis might be needed when iodinated contrastused imaging is considered before intravenous thrombolysis. Keywords Iodinated contrast . Intravenous thrombolysis . Recombinant tissue-type plasminogen activator . Acute ischemic stroke
Introduction
Zhicai Chen and Chao Xu contributed equally to this work. * Min Lou [email protected]; [email protected] 1
School of Medicine, Department of Neurology, The Second Affiliated Hospital of Zhejiang University, #88 Jiefang Road, Hangzhou 310009, China
2
School of Management, Department of Statistics and Finance, University of Science and Technology of China, H
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