Japanese Journal of Clinical Oncology 32:202-205 (2002)
© 2002 Foundation for Promotion of Cancer Research
Disposition of Radioiodine 131I Therapy for Thyroid Carcinoma in a Patient with Severely Impaired Renal Function on Chronic Dialysis: a Case Report
Departments of 1 Medical Oncology and 2 Nuclear Medicine, Centre Antoine Lacassagne, Nice and 3 Department of Nephrology, Hôpital Pasteur, Nice, France
The aim of this study was to analyze the disposition of radioiodine used for the ablation of thyroid remnants after radical surgery for a differentiated thyroid carcinoma in a patient on chronic hemodialysis in order to deliver the optimal 131I dose to improve the healing rate in these rare cases and to serve as a useful reference to other health care professionals who might face a similar dilemma. A 50 mCi dose of 131I was administered orally and dialysis sessions were performed 24, 72 and 144 h after therapy. Patient effluent dialyzate waste samples were collected and blood radioactivity analyses were performed at each dialysis session. The 131I disposition half-life was 2.7 ± 0.8 h. The amounts of remnant radioactivity in total body patient were 58.7, 38.9 and 27.1%, respectively, after each of the three dialysis sessions and the effective period calculated was 1.4 days. The extents of water purification in blood were 69.7, 47.9 and 22.7% at the beginning of each dialysis and 37.7, 42.8 and 18.1% at the end of each dialysis. Effective periods of radioiodine for thyroid cancer in a patient on hemodialysis resulted in rapid iodine clearance, thereby reducing the effective radiation dose and promoting the need to use larger treatment doses. Hemodialysis was safe and effective during treatment with radioiodine.
+ For reprints and all correspondence: Nicolas Magné, Oncopharmacology Unit, Centre Antoine Lacassagne, 33 Avenue de Valombrose, 06189 Nice Cedex 2, France. E-mail: nicolas_magne@hotmail.com
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