Abstract
We used the N-back task to treat a hemodialysis patient with mild cognitive impairment. It was possible to carry out the task for 3 months without dropping out. The results show an improvement in memory and attention. Additionally, throughout activities of daily living, the patient managed to do the shopping without using notes, and felt positive changes, such as the feeling that the brain was reactivated. In this case study, we observed no significant changes in biochemical values that may affect cognitive function before and after the intervention. In conclusion, this case study demonstrates that the N-back task might be useful for dialysis patients with mild cognitive impairment.
