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Phantom boarder symptom in elderly Japanese
Takahide Fukatsu1, Kosuke Kanemoto1
1Department of Neuropsychiatry, Aichi Medical University, Nagagakute-shi, Japan.
Summary
Phantom boarder symptom (PBS) is increasingly seen in elderly individuals with cognitive disorders. Dementia with Lewy bodies (DLB), cognitive impairment, and living alone are key predictors of PBS.
Area of Science:
- Neurology
- Geriatrics
- Psychiatry
Background:
- Phantom boarder symptom (PBS) is a delusional misidentification syndrome.
- PBS is increasingly prevalent in aging populations, particularly in Japan.
- It is often associated with neurocognitive disorders in the elderly.
Purpose of the Study:
- To investigate the etiology of PBS.
- To identify significant predictors of PBS in elderly patients.
- To understand the association between PBS and various dementia types.
Main Methods:
- Retrospective examination of 511 patients suspected of dementia.
- Detailed case feature investigation of 16 selected PBS patients.
- Multiple logistic regression analysis to evaluate predictive factors.
Main Results:
- Dementia with Lewy bodies (DLB) was the most common diagnosis among PBS patients (7/16).
- Low Mini-Mental State Examination (MMSE) scores and living alone were associated with higher PBS risk in DLB cases.
- Other diagnoses included Alzheimer's disease, delusional disorder, unspecified dementia, and vascular dementia.
Conclusions:
- Dementia with Lewy bodies (DLB) is strongly associated with PBS.
- Cognitive impairment and social factors like living alone are significant predictors of PBS.
- Early identification of these predictors can aid in managing PBS in elderly patients.
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