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Effect of antihypertensive therapy on cognitive functions of patients with hypertension

Ashok Jaiswal,V. Bhavsar,Jaykaran,N. Kantharia

Published 2010 in Annals of Indian Academy of Neurology

ABSTRACT

Objectives: Hypertension is known to be associated with cognitive decline. Many studies revealed that control of hypertension with antihypertensive therapy controls the cognitive decline associated with hypertension. While there are reports that suggest that antihypertensive drugs do not provide protection from cognitive decline, the present study is designed to evaluate the cognitive status of patients recently diagnosed as hypertensive and effect of 3 month long antihypertensive therapy on cognitive functions. Materials and Methods: A predesigned pretested questionnaire was used to collect the information. The PGI memory scale (PGIMS) was employed to assess memory function of patients. Baseline memory functions were evaluated before starting the treatment with antihypertensive and compared with the cognitive function scores of healthy volunteers. After the 3 months of treatment, cognitive functions were evaluated again by the same scale. The unpaired t-test was used to compare the cognitive functions between case and control and the paired t-test was used to compare pre- and post-treatment score. Results: This study revealed that mean scores of six subtests of cognitive functions were less in cases as compared to subjects in comparison group. After 3 months of antihypertensive therapy, scores of five sub-tests were found to be increased. Among these five subtests, four were those which were found declined at the baseline. Conclusion: This suggests that antihypertensive therapy given for 3 months improved the score of those cognitive function tests in which hypertensive patients perform poorly during recruitment and there was no deterioration of any test after 3 months of antihypertensive therapy.

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