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Fudan University Journal of Medical Sciences ; (6): 155-161, 2017.
Article in Chinese | WPRIM | ID: wpr-512681

ABSTRACT

Objective To investigate the safety and feasibility of intraluminal brachytherapy using iodine-125 seed strand for locally advanced pancreatic ductal adenocarcinoma with obstructive jaundice.Methods Clinical data of 17 consecutive patients,from January 2010 to February 2015,diagnosed with pancreatic ductal adenocarcinoma (4 cases of T4 N0 M0 and 13 of T4 N1M0) with obstructive jaundice and received intraluminal brachytherapy using iodine-125 seed strand were collected and analyzed retrospectively.Liver function was evaluated using paired-samples t test.The iodine-125 seed strand radiation doses were calculated using iodine-125 radiation field distribution calculation software (version 0.1,Institute of Radiation Medicine,Fudan University,Shanghai,China) based on the American Association of Physicists in Medicine TG43U1 brachytherapy formula.Obstruction free survival and overall survival were calculated using the Kaplan-Meier method.Complications were assessed according to the CTCAE 4.0 criteria.Results The estimated mean accumulating dose (r =5 mm,240 days) was 167.2Gy,from 164.19Gy to 170.05Gy.The mean and median obstruction free survival time were (9.62 ± 1.47) months (95%CI:6.73-12.50) and (7.26 ± 1.71) months (95 %CI:3.90-10.62).The mean and median overall survival time were (9.89 ± 1.59) months (95%CI:6.78-13.00) and (7.26 ± 1.71) months (95 % CI:3.90-10.62),retrospectively.Total bilirubin and conjugated bilirubin decreased significantly after the therapy.Two patients had adverse event of Grade 3,one of Grade 4.Stent dysfunction occurred in 1/17 (5.9 %) patients.Conclusions Intraluminal brachytherapy using iodine-125 seed strand might be considered as a safe treatment option for the locally advanced pancreatic duct adenocarcinoma complicated by obstructive jaundice.

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