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  • Title: Bone mineral density is close to normal for age in long-term lymphoma survivors treated with high-dose therapy with autologous stem cell transplantation.
    Author: Seland M, Smeland KB, Bjøro T, Falk RS, Fosså SD, Gjesdal CG, Godang K, Holte H, Svartberg J, Syversen U, Bollerslev J, Kiserud CE.
    Journal: Acta Oncol; 2017 Apr; 56(4):590-598. PubMed ID: 28077016.
    Abstract:
    BACKGROUND: Few studies have assessed bone health in lymphoma survivors treated with high-dose therapy with autologous stem cell transplantation (HDT-ASCT). Therefore, we aimed to assess bone mineral density (BMD) at six different skeletal sites and to investigate associations between clinical factors and BMD in these survivors. MATERIAL AND METHODS: Eligible lymphoma survivors were aged ≥18 years at diagnosis and at HDT-ASCT given between 1987 and 2008. Participants responded to questionnaires, blood samples were drawn, and a dual energy X-ray absorptiometry (DXA) was performed. Mean Z-score was applied for assessment of BMD in relation to age. Prevalence of Z-scores ≥-1, between -1 and -2, and ≤-2 is reported for each measurement site and for the lumbar spine, femoral neck, and hip in combination. Likewise, T-scores were applied to assess the prevalence of normal BMD (≥-1), osteopenia (between -1 and -2.5), and osteoporosis (≤-2.5). RESULTS: We included 228 lymphoma survivors, of whom 62% were males. The median age at survey was 56 years, and median observation time from HDT-ASCT was eight years. Among males, Z-scores were lower at the left femoral neck and higher at the ultra-distal (UD) radius and whole body compared to the Lunar reference database. In females, Z-scores were lower at UD radius and one-third (33%) radius and higher at the whole body. Using a classification based on Z-scores at the lumbar spine, femoral neck, and hip in combination, 25% of males and 16% of females had Z-scores <-1 and >-2, while 8% and 6% had Z-scores ≤-2. According to T-scores, 35% of males and 41% of females had osteopenia, while 8% and 13% had osteoporosis, respectively. CONCLUSION: BMD was close to normal for age in this population of long-term lymphoma survivors treated with HDT-ASCT.
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