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Hypertension, vascular cognitive disorders and neuroprotection

Published online by Cambridge University Press:  24 June 2014

Dimiter Hadjiev  and
Petya Mineva
Dimiter Hadjiev*
Affiliation:
University Hospital of Neurology and Psychiatry ‘St Naum’, Medical University, Sofia, Bulgaria
Petya Mineva
Affiliation:
Medical Faculty, Department of Neurology and Psychiatry, Thracian University, Stara Zagora, Bulgaria
*
Professor Dimiter Hadjiev, Compl. Javorov, bl. 21 A, Apt. 2, 1504 Sofia, Bulgaria. Tel: 00 359 28 464 179; E-mail: [email protected]
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Abstract

Objective:

The role of the antihypertensive therapy in preventing vascular cognitive disorders in elderly persons without a history of stroke is a matter of debate. This review focuses on cognitive disorders in elderly hypertensive patients.

Methods:

Relevant papers were identified by searches in PubMed from 1946 until February 2007 using the keywords ‘cerebral blood flow autoregulation’, ‘vascular cognitive disorders’, ‘neuroimaging in hypertension’, ‘antihypertensive treatment’ and ‘neuroprotection in cerebral ischemia’.

Results:

Excessive blood pressure lowering in patients with long-standing hypertension may increase the risk of cerebral hypoperfusion, white matter lesions and consequent cognitive decline. White matter lesions have been found in the majority of patients with long-standing hypertension. They correlate with vascular cognitive disorders, particularly impairments of attention and executive function, while memory is relatively preserved. Cerebral small vessel disease in elderly patients should be taken into account when antihypertensive treatment is considered. Renin–angiotensin blockade, some calcium channel blockers and statins are thought to possess neuroprotective action.

Conclusion:

For prevention of cerebral hypoperfusion in elderly hypertensives blood pressure lowering should be cautiously controlled. The increased risk of white matter lesions is an indication for early neuroprotection. The combination of renin–angiotensin blockade or calcium channel blockers with statins may become a promising preventive strategy against cognitive decline in elderly hypertensives. Cerebral white matter protection is a future challenge.

Keywords

cerebral hypoperfusioncognitionhypertensionneuroprotectionMRI abnormalities
Type
Review article
Information
Acta Neuropsychiatrica , Volume 19 , Issue 5 , October 2007 , pp. 269 - 278
Copyright
Copyright © 2007 Blackwell Munksgaard

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