Abstract
Objectives Patients undergoing autologous hematopoietic stem cell transplant (HCT) are at risk for death and remain understudied relative to those undergoing allogeneic HCT. Cognitive functioning may be a useful indicator of mortality risk. We examined cognition among patients who underwent autologous HCT and its relationship to mortality. Methods Participants (N = 51; 11 patients deceased) completed tasks of processing speed, working memory, executive-mediated learning, and visual recall using the computerized CogState battery prior to HCT, 30 days post-autologous HCT, and 100 days post-autologous HCT. Results Slower processing speed (HR = 3.00) and more errors on an executive-mediated visual learning task (HR = 2.78) prior to HCT were associated with an increased risk of death following HCT. Our sample size limited longitudinal analyses of whether cognitive change predicted survival, however descriptive cognitive data of the deceased versus living patient’s performances over time suggested different patterns of performance across groups. Conclusions Pre-HCT cognition may have utility as an indicator of mortality risk following autologous HCT. More research is needed to examine whether cognitive changes after HCT could also predict mortality.
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