title: Clinicopathological correlation of psychosis and brain vascular changes in Alzheimer's disease.
abstract: Psychosis is common in Alzheimer's disease (AD). However, studies on neuropathology in vascular etiology contributing to psychosis in AD is lacking to date. The aim of this study was to investigate neuropathological vascular related changes in Alzheimer's disease with psychosis. Data of patients with AD from the National Alzheimer's Coordinating Center between 2005 to September 2013 was accessed and reviewed. Presence of psychosis was determined based on Neuropsychiatric Inventory Questionnaire taken from the last visit within one year prior to death, and patients were divided into psychosis positive and negative group. Comparison of clinical details and neuropathological vascular changes between the groups was performed using Wilcoxon rank sum test and Chi-square/ Fisher's exact test. Significant variables were further included in a multivariate logistic model. Overall, 145 patients was included. Of these, 50 patients were psychosis positive. Presence of one or more cortical microinfarcts and moderate to severe arteriosclerosis was found to be positively associated with psychosis. Our results suggest vascular changes correlate with psychosis in Alzheimer's disease.
authors: Department of Neurology, Singapore General Hospital, Singapore, Singapore.|National Neuroscience Institute, Singapore, Singapore.
authors: Simon Kang Seng
authors: SK
authors: Ting
authors: Health Services Research and Biostatistics Unit, Division of Research, Singapore General Hospital, Singapore, Singapore.
authors: Ying
authors: Y
authors: Hao
authors: Department of Neurology, Singapore General Hospital, Singapore, Singapore.|National Neuroscience Institute, Singapore, Singapore.
authors: Pei Shi
authors: PS
authors: Chia
authors: Department of Neurology, Singapore General Hospital, Singapore, Singapore.|National Neuroscience Institute, Singapore, Singapore.
authors: Eng-King
authors: EK
authors: Tan
authors: Department of Neurology, Singapore General Hospital, Singapore, Singapore.|National Neuroscience Institute, Singapore, Singapore.
authors: Shahul
authors: S
authors: Hameed
mesh_terms: D000368:Aged; D000544:Alzheimer Disease / Q000150:complications* / Q000523:psychology*; D001921:Brain / Q000098:blood supply* / Q000473:pathology*; D015331:Cohort Studies; D003710:Demography; D005260:Female; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D011618:Psychotic Disorders / Q000150:complications* / Q000473:pathology*; D011795:Surveys and Questionnaires