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Poor bone health at the end of puberty in childhood cancer survivors.

 Jung Woo Han ; Hyo Sun Kim ; Chuhl Joo Lyu ; Jin Lee ; Yoon Sun Lee ; Sun Hee Kim ; Yoon Jung Shin ; Song Lee Jin ; Seung Min Hahn 
 Pediatric Blood & Cancer , Vol.62(10) : 1838~1843, 2015 
Journal Title
 Pediatric Blood & Cancer 
Issue Date
BACKGROUND: Although the survival rate following childhood cancer is >80%, late effects are a major concern. We aimed to determine the clinical factors affecting bone health after puberty in childhood cancer survivors at risk for low bone mineral density (BMD). PROCEDURES: We performed dual-energy X-ray absorptiometry at the lumbar spine, femoral neck, and total hip regions for survivors with the following bone densitometry indications (BDIXs): brain or nasopharyngeal cancer, head or neck area radiotherapy, or corticosteroid treatment (N = 92). Additionally, we evaluated 16 survivors without these BDIXs but with other clinical factors that could affect bone health. We assessed the effects of these factors on BMD using univariate and logistic regression analyses. Moderate BMD deficit was defined as a Z-score of <-1.0 and ≥-2.0, and severe BMD deficit was defined as <-2.0. RESULTS: Severe BMD deficits were found in 18 survivors (16.7%) and moderate BMD deficits were in 39 (36.1%) in at least one bone region. BMD deficits tended to increase as the number of BDIXs increased (P < 0.010). There were no severe BMD deficits in survivors without BDIXs. The duration since cancer treatment completion was correlated with higher BMD (P < 0.05). Endocrine dysfunction was a significant risk factor for decreased BMD in univariate and multivariate analyses (P < 0.05 for both). CONCLUSIONS: Decreased BMD was prevalent in our study cohort. Endocrine dysfunction was found to be a significant risk factor, and it should be managed in survivors to ensure future bone health.
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1. 연구논문 > 1. College of Medicine > Dept. of Pediatrics
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