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Is age a risk factor for cognitive changes following hematopoietic cell transplantation?

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BONE MARROW TRANSPLANTATION
卷 56, 期 3, 页码 567-569

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DOI: 10.1038/s41409-020-01046-3

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  1. Blue Cross Blue Shield of Michigan Foundation [2193.II]

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The study found that age did not have a significant impact on cognition one year after hematopoietic cell transplantation (HCT), but there may be differences between different types of transplant recipients. These results suggest that advanced age may not be a risk factor for worse cognitive outcomes post-HCT, while younger allogeneic transplant recipients may be at risk for worse cognitive outcomes compared to younger autologous recipient counterparts.
Cognitive deficits following hematopoietic cell transplantation (HCT) are common and affect post-HCT treatment regimen adherence and quality-of-life. Little is known about effects of age on cognition following HCT. The current study aimed to identify the effects of age on cognition one-year post-HCT, compared to pre-HCT baseline functioning. Participants were 78 autologous and allogeneic transplant recipients who underwent neuropsychological assessments at baseline and one-year post-HCT. Mixed model analyses indicated that no statistically significant main effect of age was observed for any cognitive variable. The Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) Total Index Score and Trail Making Test (parts A and B) showed significant interaction effects between age and transplant type. These findings indicate that older autologous and allogeneic transplant recipients were predicted to perform similarly; however, young allogeneic HCT recipients were predicted to perform substantially below young autologous transplant recipients. Hierarchical regressions indicated that age failed to predict changes in neuropsychological test performance between baseline and one-year post-HCT. These findings indicate that advanced age may not be a risk factor for worse cognitive outcome post-HCT, though younger allogeneic transplant recipients may be at risk for worse cognitive outcomes, relative to younger autologous recipient counterparts. Clinical implications are discussed.

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