Related Experiment Videos
Assessing vascular dementia
F Forette1, A S Rigaud, M Morin
1Hôpital Broca, Université René Descartes-Paris V (CHU Cochin), France.
Insights
Vascular dementia, a common elderly condition, is strongly linked to hypertension. Preventive treatment, particularly for isolated systolic hypertension, is key as established dementia has no cure.
Area of Science:
- Neurology
- Geriatrics
- Epidemiology
Background:
- Vascular dementia is a leading cause of cognitive decline in older adults, second only to Alzheimer's disease.
- Numerous subtypes exist, including multi-infarct, lacunar, and Binswanger's encephalopathy, complicating diagnosis.
- Hypertension is identified as the primary risk factor across all vascular dementia forms.
Purpose of the Study:
- To evaluate the effectiveness of treating isolated systolic hypertension in reducing vascular dementia incidence.
- To address the diagnostic challenges and need for international consensus in vascular dementia research.
Main Methods:
- The SYST-EUR Vascular Dementia project aimed to confirm the preventive effect of isolated systolic hypertension treatment.
- Utilized diagnostic criteria from groups like NINCDS-AIREN and California Alzheimer's Disease Diagnostic and Treatment Centers.
Main Results:
- Hypertension significantly increases vascular dementia incidence rates.
- No current treatments can reverse established vascular dementia; prevention is the only effective strategy.
Conclusions:
- Preventive measures, specifically managing isolated systolic hypertension, are crucial for reducing vascular dementia prevalence.
- Further research and standardized diagnostic criteria are needed for accurate epidemiological studies and effective interventions.
Abstract:
Vascular dementia is the most common cause of dementia in the elderly after Alzheimer's disease. Many forms of vascular dementia have been described: multi-infarct dementia, lacunar dementia, Binswanger's subcortical encephalopathy, cerebral amyloid angiopathy, white matter lesions associated with dementias, single infarct dementia, dementia linked to hypoperfusion and haemorrhagic dementia. The difficulty of diagnosing vascular dementia must not be underestimated and an international consensus is needed for epidemiological studies. The NINCDS-AIREN group has recently published diagnostic criteria. The State of California Alzheimer's Disease Diagnostic and Treatment Centers also proposed some which differ from the NINCDS-AIREN criteria in considering only ischaemic vascular dementia and not other mechanisms such as haemorrhagic or hypoxic lesions. Most studies stress hypertension as the most powerful risk factor for all forms of vascular dementia. The incidence rate ranges from 7 per 1000 person-years in normal volunteers to 16 per 1000 person-years in hypertensive patients. No therapeutic attempt has influenced the course of the disease once the dementing condition is established. The only effective approach is preventive treatment. The objective of the SYST-EUR Vascular Dementia project is to confirm that the treatment of isolated systolic hypertension is able to reduce its incidence.