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已发表论文
针对复发非角化性鼻咽癌，对采用计算机断层扫描引导永久植入碘-125 粒子的近距离放疗的分析
Authors Shen X, Li Y, Zhang Y, Kong J, Li Y
Published Date May 2015 Volume 2015:8 Pages 991—997
DOI http://dx.doi.org/10.2147/OTT.S83140
Received 19 February 2015, Accepted 18 March 2015, Published 2 May 2015
Background: 125I seed implantation is a new method in treatment of
nasopharyngeal carcinoma (NPC), and it is worthwhile to evaluate its
feasibility. In this study, we performed brachytherapy with computed tomography
(CT)-guided permanent implantation of 125I seeds in the treatment of
patients with the recurrence of NPC.
Methods: A total 30 patients (20 male and ten female) at the median age of 55 (range 25–80) years were diagnosed with recurrent nonkeratin NPC, with a total 38 lesions and a short disease-free interval (median ~11 months) after primary radiotherapy alone or combined with chemotherapy. Patients received CT scan, starting from 2 months after the treatment. Follow-up was conducted for ~2–38 months to observe the local control rate and overall survival rate. We also analyzed the possible correlation between survival periods and the status of recurrent tumors.
Results: The local control rates at 6, 12, 24, 30, and 36 months after the procedure of 125I seed implantation were 86.8%, 73.7%, 26.3%, 15.8%, and 5.3%, respectively. The overall 1-, 2-, and 3-year survival rates were 80.0% (24/30), 30.0% (9/30), and 6.7% (2/30), respectively, with a median survival period of 18 months (17.6±8.6 months). Interestingly, the survival periods of the patients who had primary radiotherapy with or without chemotherapy were 15.8±7.9 and 24.3±7.9 months, respectively. Kaplan–Meier survival analysis demonstrated that χ 2 (log rank) was 7.555, with very significant difference (P <0.01). The survival periods of patients in tumor stages I, II, III, and IV were 25.4±8.7, 19.8±9.4, 16.1±4.5, and 12.8±7.8 months, respectively, with significant differences (P <0.05).
Conclusion: Our data suggest that the survival period of recurrent NPC patients after 125I seed implantation is inversely related to the tumor stages of the recurrence but not to chemotherapy after the primary radiotherapy. Therefore, CT-guided 125I seed implantation can be set for treatment of recurrent NPC, for better survival rate with minimal damage.
Keywords: CT-guided 125I seed, radiochemotherapy, NPC
Methods: A total 30 patients (20 male and ten female) at the median age of 55 (range 25–80) years were diagnosed with recurrent nonkeratin NPC, with a total 38 lesions and a short disease-free interval (median ~11 months) after primary radiotherapy alone or combined with chemotherapy. Patients received CT scan, starting from 2 months after the treatment. Follow-up was conducted for ~2–38 months to observe the local control rate and overall survival rate. We also analyzed the possible correlation between survival periods and the status of recurrent tumors.
Results: The local control rates at 6, 12, 24, 30, and 36 months after the procedure of 125I seed implantation were 86.8%, 73.7%, 26.3%, 15.8%, and 5.3%, respectively. The overall 1-, 2-, and 3-year survival rates were 80.0% (24/30), 30.0% (9/30), and 6.7% (2/30), respectively, with a median survival period of 18 months (17.6±8.6 months). Interestingly, the survival periods of the patients who had primary radiotherapy with or without chemotherapy were 15.8±7.9 and 24.3±7.9 months, respectively. Kaplan–Meier survival analysis demonstrated that χ 2 (log rank) was 7.555, with very significant difference (P <0.01). The survival periods of patients in tumor stages I, II, III, and IV were 25.4±8.7, 19.8±9.4, 16.1±4.5, and 12.8±7.8 months, respectively, with significant differences (P <0.05).
Conclusion: Our data suggest that the survival period of recurrent NPC patients after 125I seed implantation is inversely related to the tumor stages of the recurrence but not to chemotherapy after the primary radiotherapy. Therefore, CT-guided 125I seed implantation can be set for treatment of recurrent NPC, for better survival rate with minimal damage.
Keywords: CT-guided 125I seed, radiochemotherapy, NPC
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