Adjuvant therapy for orbital non-rhabdomyosarcoma soft tissue sarcoma: comparison of long-term outcome between radiotherapy and chemotherapy
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Jiang Qian. Department of Ophthalmology, Eye and ENT Hospital of Fudan University, 83 Fenyang Road, Shanghai 200031, China. qianjiang58@163.com

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Supported by the National Natural Science Foundation of China (No.82171099; No.82000940; No.81970835; No.81800867); the Natural Science Foundation of Shanghai (No.20ZR1409500).

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    Abstract:

    AIM: To illustrate clinicopathological features of orbital non-rhabdomyosarcoma soft tissue sarcoma (NRSTS), and to compare the treatment outcome between postoperative radiotherapy (RT) and chemotherapy in a retrospective analysis nearly 20y. METHODS: A retrospective cohort study of 56 patients with orbital NRSTS were reviewed, 34 of whom received postoperative RT, and 22 received postoperative chemotherapy. The clinicopathological features, local recurrence, metastases, and survival data were recorded. Survival analysis was performed using the Kaplan-Meier method. RESULTS: During follow-up (111.8mo, ranged 8-233mo) for 56 patients, 19 patients of them developed local recurrence, and 7 patients developed distant metastases. Fifteen patients died during follow-up period. Overall survival rates considering the whole study group was 78.57% at 5y, and 72.16% at 10y after the initial diagnosis. Compared with chemotherapy, RT was associated with lower risk of local recurrence [hazard ratio for RT vs chemotherapy, 0.263, 95% confidence interval (CI), 0.095-0.728, P=0.0015]; with lower risk of distant metastasis (hazard ratio for RT vs chemotherapy, 0.073, 95%CI, 0.015-0.364, P=0.0014); and with lower risk of death from disease (hazard ratio for RT vs chemotherapy, 0.066, 95%CI, 0.022-0.200, P<0.0001). The 5-year survival rate in RT group was 97.06% compared to 50% in chemotherapy group. CONCLUSION: In patients with orbital NRSTS, postoperative RT provides better control of local recurrence, distant metastasis, and death from disease than chemotherapy. RT is the more preferrable adjuvant therapy compared to chemotherapy possibly.

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Xiao-Feng Li, Rui-Qi Ma, Xue Wu, et al. Adjuvant therapy for orbital non-rhabdomyosarcoma soft tissue sarcoma: comparison of long-term outcome between radiotherapy and chemotherapy. Int J Ophthalmol, 2023,16(3):402-410

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Publication History
  • Received:August 11,2022
  • Revised:January 12,2023
  • Adopted:
  • Online: March 02,2023
  • Published: