Evidence map›Paper›PMID 23350899›Full record

Trial reportJournal of the American Geriatrics Society2013

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

Ihab Hajjar, Meaghan Hart, Yu-Ling Chen, Wendy Mack, Vera Novak, Helena C Chui, Lewis Lipsitz

Abstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Journal of the American Geriatrics Society, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 5 pooled it
5.2field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 5 syntheses or guidelines pooled it, 66 citations in OpenAlex.

  1. Effects of candesartan on cerebral microvascular function in mild cognitive impairment: Results of two clinical trials.International journal of stroke : official journal of the International Stroke Society · 2023
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  15. Effect of drug interventions on cerebral hemodynamics in ischemic stroke patients.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 1 country.

Ihab HajjarDivision of Geriatric, Hospital, and General Internal Medicine, Department of Medicine, University of Southern California, Los Angeles, CA 90033, USA. ihajjar@usc
Meaghan Hart
Yu-Ling Chen
Wendy Mack
Vera Novak
Helena C Chui
Lewis Lipsitz
University of Southern California · USHebrew SeniorLife · USAlzheimer’s Disease Neuroimaging Initiative · USBeth Israel Deaconess Medical Center · US

Funding

LOS ANGELES BASIN CLINICAL AND TRANSLATIONAL SCIENCE INSTITUTEUL1RR031986 · NCRR · UNIVERSITY OF SOUTHERN CALIFORNIA · PI BUCHANAN, THOMAS A · 2010 to 2011
$21.1M
VITAMIN D NUTRITION IN THE INSTITUTIONALIZED ELDERLYP01AG004390 · NIA · HEBREW REHABILITATION CENTER FOR AGED · PI LIPSITZ, LEWIS · 1985 to 2008
$13.2M
Nonlinear Dynamics of Frailty in AgingR37AG025037 · NIA · HEBREW REHABILITATION CENTER FOR AGED · PI LIPSITZ, LEWIS · 2006 to 2013
$1.6M
Cerebromicrovascular disease in elderly with diabetesR01AG028076 · NIA · BETH ISRAEL DEACONESS MEDICAL CENTER · PI NOVAK, VERA · 2009 to 2010
$1.2M
Aging and The Renin-Angiotensin System in Elderly Hypertensive IndividualsK23AG030057 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI HAJJAR, IHAB M · 2007 to 2011
$797k
Enhancing cerebral vasoreativity & cognition by intranasal insulin in T2DMR21DK084463 · NIDDK · BETH ISRAEL DEACONESS MEDICAL CENTER · PI NOVAK, VERA · 2010 to 2011
$466k
NCRR NIH HHS UL1 RR031986NIA NIH HHS AG028076-A2NIA NIH HHS K23 AG030057NIA NIH HHS P01 AG004390NIA NIH HHS P01-AG004390NIA NIH HHS R37 AG025037NIA NIH HHS R37-AG025037NIDDK NIH HHS DK084463
6 · The paper itself

Abstract

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

designDouble-blind randomized clinical trial.

settingCommunity.

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

interventionLisinopril, 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.

resultsOf 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 (<median 27.6 cm/s, between-group P = .03). The candesartan group also had the greatest improvement in executive function (Trail Making Test Part B improved by 17.1 seconds, vs hydrochlorothiazide improved by 4.2 seconds and lisinopril worsened by 14.4 seconds, P = .008). Carbon dioxide vasoreactivity and vasomotor range declined significantly in the lisinopril (within-group P = .001 for vasoreactivity and .02 for vasomotor range) and hydrochlorothiazide groups (within-group P = .10 and .009, respectively) but not in the candesartan group (within-group P = .25 and .38, respectively; between-group P = .30 and .46, respectively).

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.

Indexed as

AgedAngiotensin II Type 1 Receptor BlockersBenzimidazolesBiphenyl CompoundsBlood PressureCerebrovascular CirculationCognitionCognitive DysfunctionDose-Response Relationship, DrugDouble-Blind MethodFemaleFollow-Up StudiesHumansHypertensionMaleMiddle AgedAngiotensin II Type 1 Receptor BlockersBenzimidazolesBiphenyl CompoundscandesartanTetrazoles

Identifiers

PMID23350899
PMCPMC3608194
OpenAlexW1977665419

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.