Anaemia and thrombocytopenia in patients with prostate cancer and bone metastases.
BACKGROUND: The purpose of this study was to determine the incidence, risk factors and prognostic impact of anaemia and thrombocytopenia in patients with bone metastases (BM) from prostate cancer. METHODS: Retrospective cohort study including 51 consecutive patients treated at a community hospital. Twenty-nine patients (57%) received taxotere after diagnosis of BM. RESULTS: Haemoglobin (Hb) < or = 12.0 g/dL at BM detection was associated with shorter overall survival. During follow-up, 25 patients (49%) experienced episodes with Hb < 10 g/dL unrelated to side effects of cancer therapy. Fifteen patients required red blood cell transfusion. Median time from diagnosis of BM to Hb < 10 g/dL was 23 months. Median survival from Hb < 10 g/dL was 5.4 months. There was no factor predicting for Hb < 10 g/dL. Five patients (10%) developed thrombocyte (Trc) count <50 x 10(9)/L. All of these had previously received blood transfusion. Median interval from Hb < 10 g/dL to Trc < 50 x 10(9)/L was 2.5 months. Survival after thrombocytopenia was short (3 weeks to 4 months). Haematuria and subdural haematoma were among the causes of death. CONCLUSIONS: We found high rates of significant bone marrow failure in treatment-refractory patients. Both Hb < 10 g/dL and Trc < 50 x 10(9)/L predict for unfavourable survival.[1]References
- Anaemia and thrombocytopenia in patients with prostate cancer and bone metastases. Nieder, C., Haukland, E., Pawinski, A., Dalhaug, A. BMC. Cancer (2010) [Pubmed]
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