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  • Title: Bone pain palliation with strontium-89 in breast cancer patients with bone metastases and refractory bone pain.
    Author: Berna L, Carrio I, Alonso C, Ferré J, Estorch M, Torres G.
    Journal: Eur J Nucl Med; 1995 Oct; 22(10):1101-4. PubMed ID: 8542891.
    Abstract:
    Fifteen patients with breast cancer and skeletal metastases who had bone pain refractory to opioid analgesics and who were not eligible for or had not responded to local field radiotherapy, were treated with strontium-89. All patients had received previous treatment with chemotherapy and radiotherapy for bone metastases. Severity of bone pain, sleeping pattern, mobility and dependency on analgesics were evaluated before and 4, 8 and 12 weeks after 89Sr administration. Patients received 2 MBq/kg (118-148 MBq) of 89Sr by i.v. injection. Pain relief and a reduction in analgesic requirements were observed in 7 of the 15 (47%) patients, with a reduction in the severity score from 34% to 71%. Duration of the response varied from 3 to 7 months. A decrease in peripheral blood cell count was observed in 11 patients: a 15%-66% reduction in white cell count and a 14%-75% reduction in platelet count were detected at 12 weeks after treatment in these patients. We conclude that 89Sr is effective (47% response rate) for bone pain palliation in patients with bone metastases from breast cancer. Dependency on opioid analgesics may be reduced in patients with refractory bone pain.
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