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Antihypertensive therapy and cerebral hemodynamics in executive mild cognitive impairment: results of a pilot randomized clinical trial.


ABSTRACT:

Objectives

To compare the effects of three antihypertensive medications on cerebral hemodynamic and cognitive function in hypertensive individuals with executive dysfunction.

Design

Double-blind randomized clinical trial.

Setting

Community.

Participants

Fifty-three individuals aged 60 and older with hypertension and executive dysfunction.

Intervention

Lisinopril, candesartan, or hydrochlorothiazide for 1 year.

Measurements

Cerebral blood flow velocity (BFV; transcranial Doppler ultrasonography during rest, sitting, standing, hypercapnia, and hypocapnia), cognition, and blood pressure were measured at baseline and after 6 and 12 months. Linear mixed models were used to compare the three groups.

Results

Of the 53 participants, 47 had successful insonation (mean age 72; 70% white; 57% women). There was a tendency toward an increase in BFV in the candesartan group and a decrease in the lisinopril and hydrochlorothiazide groups (between-group P = .57) that was significant in those with low BFV at baseline (ConclusionAngiotensin receptor blockers may preferentially preserve cerebral hemodynamics and executive function in individuals with executive dysfunction. These findings warrant further investigation in a larger trial.

SUBMITTER: Hajjar I 

PROVIDER: S-EPMC3608194 | biostudies-literature | 2013 Feb

REPOSITORIES: biostudies-literature

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Publications

Antihypertensive therapy and cerebral hemodynamics in executive mild cognitive impairment: results of a pilot randomized clinical trial.

Hajjar Ihab I   Hart Meaghan M   Chen Yu-Ling YL   Mack Wendy W   Novak Vera V   C Chui Helena H   Lipsitz Lewis L  

Journal of the American Geriatrics Society 20130125 2


<h4>Objectives</h4>To compare the effects of three antihypertensive medications on cerebral hemodynamic and cognitive function in hypertensive individuals with executive dysfunction.<h4>Design</h4>Double-blind randomized clinical trial.<h4>Setting</h4>Community.<h4>Participants</h4>Fifty-three individuals aged 60 and older with hypertension and executive dysfunction.<h4>Intervention</h4>Lisinopril, candesartan, or hydrochlorothiazide for 1 year.<h4>Measurements</h4>Cerebral blood flow velocity (  ...[more]

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