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Publications (4)6.62 Total impact

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    ABSTRACT: To evaluate the efficacy and the technological feasibility of B-ultrasound guided implantation of (125)I seed for recurrent head and neck cancer. In the study, 29 patients with local or regional recurrence of head and neck tumors after external beam radiotherapy alone, external beam radiotherapy combined neck dissection or chemotherapy were treated with (125)I seed implantation guided by ultrasound under local anesthesia. The median number of seeds was 27 (ranging from 3 to 61), and the radioactive activity ranged from 0.35-0.8 mCi(1.30×10(7) -2.96×10(7) Bq). Postoperative quality evaluations were routinely obtained for all the patients. The median follow-up was 8 months (ranging from 3 to 42 months). The 1-, 2- and 3-year local controls were 53.1%, 34.8%, and 17.4%, respectively. The 1-, 2- and 3-year survival rates were 54.1%, 27.5%, and 27.5%, respectively. Ultrasound guided implantation of (125)I seeds can play an important role in the salvage treatment of recurrence of head and neck cancer. This study shows B-ultrasound guided (125)I seed implantation is one of the most efficient brachytherapies, which is easy to operate, least invasive and safe for low morbidity.
    Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences 04/2012; 44(2):291-4.
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    ABSTRACT: Seventeen patients with head and neck recurrent carcinoma underwent (125)I seed implantation under CT or ultrasound guidance. The actuarial D90 of the (125)I seeds implanted was 90-160 Gy (median, 126 Gy). Median follow-up was 10 months (range, 3-48 months). The median local control time was 16 months; the 1- and 2-year local control rates were 66.5% and 49.9%, respectively. The 1- and 2-year survival rates were 51.3% and 38.5%, respectively (median, 16 months). None of the patients experienced grade 4 toxicity. (125)I seed implantation was a feasible and effective salvage treatment for patients with recurrent head and neck cancers.
    Cancer Investigation 03/2012; 30(3):236-42. · 2.24 Impact Factor
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    ABSTRACT: The recurrent carcinoma has been difficult to manage after surgery and radiotherapy, extensive resection of locally recurrent rectal cancer is associated with significant morbidity and mortality. Re-irradiation, even in combination with chemotherapy has shown very short survival. We assess the feasibility and efficacy of CT-guided interstitial permanent brachytherapy with (125)I or (103)Pd seeds for recurrent rectal cancer after multiple treatments. Fifteen patients with locally recurrent rectal carcinoma received (125)I or (103)Pd seed implants under CT guidance. The minimal peripheral dose of seed implants was 110-165 Gy (median 150 Gy). Two weeks after seed implantation, a 50 Gy of stereotactic radiotherapy was given to one patient; four patients received 2-4 cycles of chemotherapy. A median follow-up was 8 months (range 4-50 months). The duration of pain-free survival was 0-50 months (median 7 months). Local control was maintained for 3-50 months (median 7 months). The 1- and 2-year local controls were 16.2 and 8.1%, respectively. Eleven patients died: two (18.2%) of local recurrence, seven (63.6%) of local recurrence and metastases, and two (18.2%) of metastases. Four patients (26.7%) survived the median survival was 9 months. The 1- and 2-year actuarial overall survival rates were 42.9% and 10.7%, respectively. One patient (7.6%) experienced a grade 4 toxic event; there was no associated neuropathy. CT-guided radioactive seed implantation is feasible and safe as a salvage or palliative pain relief treatment for patients with recurrent rectal cancers after surgery and radiotherapy.
    Medical Oncology 06/2009; 27(2):421-9. · 2.14 Impact Factor
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    ABSTRACT: To assess the feasibility, efficacy, and morbidity of (125)I seeds interstitial permanent implant as salvage therapy for re-recurrent rectal cancer. From September 2003 to October 2007, (125)I seeds implant procedures were performed under CT or ultrasound guidance for thirteen patients with locally re-recurrent rectal carcinoma. The minimal peripheral doses (MPD) of (125)I seeds implanted ranged from 120 to 160 Gy, with a median MPD of 140 Gy to total decay. Three patients also received two to four cycles of chemotherapy after seed implantation. After a median follow-up of 10 months (range 3-45), the pain-free interval was 0-14 months with a median of 7 months (95% CI: 3-11 months). The response rate of pain relief was 46.2% (6/13). Local control was 3-14 months with a median of 7 months (95% CI: 3.5-10.5 months). The 1- and 2-year local control rates were 14.4% and 0%, respectively. Three (23.1%) patients died of local recurrence; seven (53.8%) patients died of local recurrence and metastases; one (7.7%) patient died of metastases. Two (15.4%) patients survived to follow-up. At the time of analysis, the median survival was 10 months (95% CI: 3.9-16.1 months). The 1- and 2-year actuarial overall survival rates were 46.2% and 11.5%, respectively. Two (15.4%) patients experienced a grade 4 toxic event. Seed migration to the pelvic wall was observed in one (7.7%) patient. There was no associated neuropathy. (125)I seed implantation is feasible, effective, and safe as a salvage or palliative treatment for patients with re-recurrent rectal cancer.
    International Journal of Colorectal Disease 01/2009; 24(4):391-9. · 2.24 Impact Factor