On the first days after admission to the Geriatric-Internal Medicine department the suffering level of patients with advanced dementia (Mini-Mental State Examination 0/30) was evaluated according to the Mini Suffering State Examination (MSSE). During hospitalization 14.8% (27/183) of patients with advanced dementia was died with mean survival rate of 19.86±26.9 days. The MSSE scale score of died patients was 7.56±1.71 during the first few days of admission which indicating high suffering levels. The MSSE scale score of survived advanced dementia patients was 3.99±2.10 which confirms their low level of suffering. There was a significant difference (P<0.001) between the groups. Died dementia patients who diagnosed as having Aminoff Suffering Syndrome during the first few days of admission had a high suffering level and short survival time. Keywords: Advanced dementia, End-of-Life, Aminoff Suffering Syndrome, Survival prognosis, Relief of Suffering Units, Palliative Care