Clinicopathological concordance in dementia diagnostics.

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OBJECTIVE: Accurate distinction between dementia subtypes is important for patient care and pharmacological treatment. Continuing systematic comparisons of clinical and neuropathological dementia diagnoses may provide a basis for further improvement of the diagnostic procedure. The purpose of this study was to investigate concordance between clinical dementia diagnosis and neuropathological findings in the specialized dementia care. METHODS: Inclusion required 1) a clinical dementia disorder diagnosed at a hospital-based memory clinic and 2) a neuropathological examination within the Department of Pathology at the University Hospital in Lund, Sweden, during the years 1996-2006. A total of 176 consecutive patients fulfilled the criteria and were thus included. Clinical dementia diagnoses were obtained from the medical records and compared with the neuropathological findings. RESULTS: The clinical and pathological dementia diagnoses were in full accordance in 86 (49%) of the patients (kappa 0.37). In an additional 24 (14%) cases, the clinical diagnosis corresponded with some but not all pathological components judged to contribute to the dementia disorder. Of the patients with clinical Alzheimer disease, 84% (46/55) had a significant Alzheimer component with or without other significant pathology at neuropathological examination. The corresponding figure for vascular dementia (VaD) was 59% (24/41), for frontotemporal dementia 74% (20/27), for combined Alzheimer and VaD 25% (4/16), and for dementia with Lewy bodies 67% (6/9). CONCLUSIONS: This study shows that clinical dementia diagnoses do not always correspond with neuropathological changes. It stresses the importance of neuropathological examination in research and in daily clinical practice.
Original languageEnglish
Pages (from-to)664-670
JournalThe American Journal of Geriatric Psychiatry
Issue number8
Publication statusPublished - 2009

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Pathology, (Lund) (013030000)

Subject classification (UKÄ)

  • Cancer and Oncology


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