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Updated: Aug 22, 2026

Using Retinal Imaging to Study Dementia
Published on: November 6, 2017
[Arterial hypertension and dementia]
1Tagesklinik für kognitive Neurologie, Max-Planck-Institut für Kognitions- und Neurowissenschaften, Universität Leipzig, 04103 Leipzig. scheid@cbs.mpg.de
Insights
Arterial hypertension (AH) is a significant risk factor for cognitive decline and dementia. While AH requires treatment to normal blood pressure, overly aggressive lowering is not advised due to potential J-curve effects.
Area of Science:
- Neurology
- Cardiology
- Gerontology
Background:
- Arterial hypertension (AH) is a known risk factor for vascular cognitive impairment.
- Its role in Alzheimer's disease is also being investigated.
- The relationship between AH and dementia remains incompletely understood.
Purpose of the Study:
- To review major prospective clinical trials examining the link between arterial hypertension and cognitive impairment.
- To summarize current understanding of AH's impact on dementia.
- To provide therapeutic guidance for managing AH in the context of cognitive health.
Main Methods:
- Review of prospective clinical trials.
- Analysis of existing literature on hypertension and cognitive decline.
- Synthesis of findings regarding treatment strategies.
Main Results:
- Inconsistent findings exist regarding the precise interrelations between AH and dementia.
- Current evidence does not support the superiority of any specific antihypertensive regimen for dementia prevention.
- A simple rule for AH therapy is to treat until normal blood pressure is achieved.
Conclusions:
- The link between arterial hypertension and dementia requires further investigation.
- Overly aggressive blood pressure reduction should be avoided pending further evidence on the J-curve hypothesis.
- Effective management of AH is crucial, but specific regimens for dementia prevention are not yet established.
Abstract:
Arterial hypertension (AH) is considered to be an important risk factor for vascular cognitive impairment and probably for Alzheimer's disease, too. In the current review we provide an overview of the major prospective clinical trials on this issue. With respect to the inconsistent findings of these studies one must state that the interrelations between AH and dementia are still incompletely understood. Regarding therapy there thus is a simple rule: AH should be treated until normal blood pressure values are reached. As long as the hypothesis of a J-curve between blood pressure and cognitive dysfunction has not been disproved, overaggressive blood pressure lowering cannot be recommended. Regarding the aim of preventing dementia, there is no evidence for the superiority of a specific antihypertensive treatment regimen.
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