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ORIGINAL ARTICLE
Year : 2021  |  Volume : 17  |  Issue : 5  |  Page : 1172-1178

Adjuvant therapy fails to show survival benefit for patients with spindle cell carcinoma: Evidence from the surveillance, epidemiology, and end results database


1 Department of Oncology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Shandong Lung Cancer Institute; Department of Oncology, Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P.R. China
2 Department of Oncology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Shandong Lung Cancer Institute, Jinan, P.R. China
3 Academy of Preventive Medicine (Institute of Radiation Medicine), Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, P.R. China
4 Department of Oncology, Yuncheng Honesty Hospital, Heze, P.R. China
5 Department of Oncology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Shandong Lung Cancer Institute; Center for Data Science in Health and Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, P.R. China

Correspondence Address:
Jing Liang
Department o Oncology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Shandong Lung Cancer Institute, Jinan 250014
P.R. China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jcrt.JCRT_1701_20

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Background: Spindle cell carcinoma (SpCC) is a rare tumor type with poor prognosis, and standard treatment modalities are not available yet. However, large-scale studies on this topic are sparse. In this study, data from the surveillance, epidemiology, and end results (SEER) database were used to determine cancer-specific survival (CSS) rates of SpCC and to investigate the impact of different therapeutic strategies including surgery with or without chemotherapy, radiotherapy, or chemoradiotherapy on patient outcome. Methods: A total of 665 cases of SpCC, diagnosed from 1996 to 2015, were extracted from the SEER database. Kaplan–Meier survival curves and log-rank tests were used to assess CSS rates and differences on survival curves. Multiple COX-proportional hazards models were used to analyze the association between various treatments and prognosis of SpCC patients classified by organs or systems. Results: Different treatments for SpCC in different organ or system were associated with prognosis of SpCC patients. Surgery alone exhibits survival benefit, whereas adjuvant therapy fails to show survival benefit for patients with SpCC. Conclusions: The prognosis of SpCC patients varied significantly with different clinical treatments. Adjuvant radiotherapy or chemotherapy did not show survival benefit, even increasing the risk of mortality for SpCC patients.


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