Objective: To investigate the short-term efficacy and safety of 125I radioactive seed implantation in the treatment of pelvic malignancies. Methods: A total of 121 patients with pelvic malignancies admitted to Zhongda Hospital, Southeast University from January 2014 to August 2024 were retrospectively enrolled. The primary endpoint was the local tumor control rate, and the secondary endpoints included pain relief rate and safety. Pain scores were assessed using the numeric rating scale(NRS). Pain scores, daily doses of oral pain medication, and indicators of bone marrow function(including red-blood-cell, white-blood-cell and platelet counts) were compared before and after treatment. Results: The disease control rates at 1 month and 2 months after surgery were 86.8% and 90.9%, respectively. The NRS scores at 1 week, 1 month, and 2 months after surgery were(7.1±1.6),(6.8±1.9), and(6.6±1.5), respectively; all were significantly lower than the preoperative value(7.6±1.8, P<0.05). The daily doses of morphine sustained-release tablets were(22.4±3.9) mg and(21.7±3.4) mg at 1 and 2 months after surgery, respectively, significantly lower than the preoperative dose of(23.5±4.8) mg(P<0.05). There were no significant differences in red-blood-cell, white-blood-cell, platelet, or monocyte counts compared with the preoperative levels(P>0.05), while the lymphocyte count was significantly higher than the preoperative value(P<0.05). Postoperative adverse reactions were grade 1 in 6.6%(8/121) of patients and grade 3 in 0.8%(1/121). Conclusion: 125I radioactive seed implantation can effectively control local tumor growth and relieve pain in patients with pelvic malignancies. It is well tolerated and safe in the short term. |
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