ABSTRACT
Alzheimer’s dementia is the commonest form of dementia, affecting about 60-70% of diagnosed cases;however, there are several types of dementias such as vascular dementias, Lewy body dementias, dementia associated with Parkinson’s disease, fronto temporal dementias and other secondary dementias of varied aetiology. Neuropsychiatric symptoms in dementias include agitation, depression, delusions and hallucinations and are often the major cause of distress to person with dementia and their carer. Delirium has been found to be an independent risk factor for dementia, and dementia has been associated with an increased risk of developing delirium. Several studies have shown that COVID-19 quarantine is linked with an increase in behavioural and psychological symptoms of dementia (BPSD). The COVID-19 pandemic has had a significant negative impact on the availability of social support services for PWD and their carers, with closure of day centres and suspension of support groups. © 2023 Taylor and Francis.