Evidence map›Paper›PMID 27846309›Full record

ArticlePloS one2016

Use of Antihypertensive Drugs and Ischemic Stroke Severity - Is There a Role for Angiotensin-II?

Wen Yea Hwong, Michiel L Bots, Sharmini Selvarajah, Zariah Abdul Aziz, Norsima Nazifah Sidek, Wilko Spiering, L Jaap Kappelle, Ilonca Vaartjes

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 24% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Persistent effect at 30-month post intervention of a community-based randomized trial of KM2HThe international journal of behavioral nutrition and physical activity · 2018
    Trial
  3. Article
  4. Article
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Wen Yea HwongNational Clinical Research Centre, Kuala Lumpur General Hospital, Kuala Lumpur, Malaysia.ORCID http://orcid.org/0000-0002-6755-920X
Michiel L BotsJulius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands.
Sharmini SelvarajahJulius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands.
Zariah Abdul AzizDepartment of Neurology, Hospital Sultanah Nur Zahirah, Terengganu, Malaysia.
Norsima Nazifah SidekDepartment of Pharmacy, Hospital Sultanah Nur Zahirah, Terengganu, Malaysia.
Wilko SpieringDepartment of Vascular Medicine, University Medical Center Utrecht, Utrecht, the Netherlands.
L Jaap KappelleDepartment of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands.
Ilonca VaartjesJulius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands.
University Medical Center Utrecht · NLHospital Sultanah Nur Zahirah · MYHospital Kuala Lumpur · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe increase in angiotensin II (Ang II) formation by selected antihypertensive drugs is said to exhibit neuroprotective properties, but this translation into improvement in clinical outcomes has been inconclusive. We undertook a study to investigate the relationship between types of antihypertensive drugs used prior to a stroke event and ischemic stroke severity. We hypothesized that use of antihypertensive drugs that increase Ang II formation (Ang II increasers) would reduce ischemic stroke severity when compared to antihypertensive drugs that suppress Ang II formation (Ang II suppressors).

methodsFrom the Malaysian National Neurology Registry, we included hypertensive patients with first ischemic stroke who presented within 48 hours from ictus. Antihypertensive drugs were divided into Ang II increasers (angiotensin-I receptor blockers (ARBs), calcium channel blockers (CCBs) and diuretics) and Ang II suppressors (angiotensin-converting-enzyme inhibitors (ACEIs) and beta blockers). We evaluated stroke severity during admission with the National Institute of Health Stroke Scale (NIHSS). We performed a multivariable logistic regression with the score being dichotomized at 15. Scores of less than 15 were categorized as less severe stroke.

resultsA total of 710 patients were included. ACEIs was the most commonly prescribed antihypertensive drug in patients using Ang II suppressors (74%) and CCBs, in patients prescribed with Ang II increasers at 77%. There was no significant difference in the severity of ischemic stroke between patients who were using Ang II increasers in comparison to patients with Ang II suppressors (OR: 1.32, 95%CI: 0.83-2.10, p = 0.24).

conclusionIn our study, we found that use of antihypertensive drugs that increase Ang II formation was not associated with less severe ischemic stroke as compared to use of antihypertensive drugs that suppress Ang II formation.

Indexed as

RegistriesAdrenergic beta-AntagonistsAgedAngiotensin-Converting Enzyme InhibitorsAngiotensin IIAngiotensin Receptor AntagonistsAntihypertensive AgentsBrain IschemiaCalcium Channel BlockersCross-Sectional StudiesDiureticsFemaleHumansHypertensionMalaysiaMaleAdrenergic beta-AntagonistsAngiotensin-Converting Enzyme InhibitorsAngiotensin IIAngiotensin Receptor AntagonistsAntihypertensive AgentsCalcium Channel BlockersDiuretics

Identifiers

PMID27846309
PMCPMC5112945
OpenAlexW2551061656

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.