Abstract
Cancer-associated ischemic stroke (CAS) refers to a hypercoagulation disorder related to malignant tumors, especially adenocarcinoma. Carbohydrate antigen (CA) 125 is a mucinous serum marker that might reflect hypercoagulation status, but the association between CA 125 and CAS is unclear across various types of cancer. The aim of this study was to investigate the associations among tumor markers, coagulation markers, and clinical factors in acute ischemic stroke (AIS) patients with active cancer. Consecutive AIS patients with active cancer (a diagnosis or ongoing active therapy for cancer within 6 months) were prospectively enrolled at four hospitals. D-dimer, C-reactive protein (CRP), carcinoembryonic antigen (CEA), CA19-9, and CA 125 levels were measured. Of 120 AIS patients with active cancer, 47 were diagnosed with CAS. CA 125 had the strongest correlations with D-dimer and CRP (ρ = 0.543, p < 0.001 and ρ = 0.452, p < 0.001, respectively). The areas under the receiver-operating characteristic curves for the diagnosis of CAS were 0.812 (95% CI 0.718–0.878) for CA 125, 0.714 (95% CI 0.602–0.801) for CEA, and 0.663 (95% CI 0.552–0.759) for CA 19-9. Multivariable analysis revealed that CA 125 levels in the highest quartile (OR 2.91, 95% CI 1.68–5.53), multiple lesions in multiple vascular territories observed on diffusion-weighted imaging, the absence of dyslipidemia, and the absence of atrial fibrillation were independently associated with CAS. Increased CA 125 levels, which indicate hypercoagulability, were useful for diagnosing CAS in AIS patients with active cancer.
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Acknowledgements
We express our gratitude to Mayumi Oda at Chikamori Hospital, Mari Okamoto at Kawasaki Medical School, and Makiko Miyamoto at National Hospital Organization Kure Medical Center and Chugoku Cancer Center for their secretarial assistance. This study was supported by a research grant from the Japan Society for the Promotion of Science KAKENHI (grant numbers 17K17907 and 20K16579).
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This study was supported by a research grant from the Japan Society for the Promotion of Science KAKENHI (grant numbers 17K17907 and 20K16579).
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TN: drafted and revised the manuscript for intellectual content, and collected data. NH, HN, SA, TT, TK, TS, DK, YM, TY, YY, NO, YS, NK, TK, HU, TO, and HM: revised the manuscript for intellectual content, and collected data.
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Hirofumi Maruyama received grants from Daiichi Sankyo Co., Ltd.; these grants are unrelated to the submitted work. All other authors declare that they have no conflicts of interest.
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This study complies with the Declaration of Helsinki guidelines for investigations involving humans, and the study protocol was approved by the Ethics Committees of each hospital (Hiroshima University Hospital; E-608, National Hospital Organization Kure Medical Center; 29–01, Kawasaki Medical School Hospital; 2621, and Chikamori Hospital; 223). As this study used clinical records, it was performed under the opt-out method.
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Nezu, T., Hosomi, N., Naito, H. et al. Clinical characteristics and tumor markers in ischemic stroke patients with active cancer. Intern Emerg Med 17, 735–741 (2022). https://doi.org/10.1007/s11739-021-02862-1
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DOI: https://doi.org/10.1007/s11739-021-02862-1