Evidence map›Paper›PMID 27110447›Full record

ArticleBrain and behavior2016

Risk of pneumonia associated with zero-degree head positioning in acute ischemic stroke patients treated with intravenous tissue plasminogen activator.

Paola Palazzo, Amy Brooks, David James, Randy Moore, Andrei V Alexandrov, Anne W Alexandrov

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.9field-weighted citation impact, top 10% 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

9 citing papers in PubMed, 24 citations in OpenAlex.

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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

6 authors at 4 institutions in 3 countries.

Paola PalazzoDepartment of Neuroscience S. Giovanni Calibita-Fatebenefratelli Hospital Rome Italy.
Amy BrooksUniversity of Alabama at Birmingham Birmingham Alabama.
David JamesUniversity of Alabama at Birmingham Birmingham Alabama.
Randy MooreUniversity of Alabama at Birmingham Birmingham Alabama.
Andrei V AlexandrovDepartment of Neurology University of Tennessee Health Science Center Memphis Tennessee.
Anne W AlexandrovDepartment of Neurology University of Tennessee Health Science Center Memphis Tennessee; Australian Catholic University Sydney New South Wales.
University of Alabama at Birmingham · USAustralian Catholic University · AUFatebenefratelli Hospital · ITUniversity of Tennessee Health Science Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIn the hyperacute phase of ischemic stroke, a 0° position is recommended to increase cerebral perfusion in nonhypoxic patients able to tolerate lying flat. However, use of 0° positioning is not uniformly applied in clinical practice, most likely due to concerns of aspiration pneumonia. We aimed to determine the risk of pneumonia associated with 0° head of bed positioning in acute stroke patients treated with thrombolytic therapy.

methodsA retrospective descriptive study was conducted using prospectively collected, consecutive acute ischemic stroke patients treated with IVtPA whose head of bed was positioned at 0° for the first 24 h. Rates of hospital-acquired pneumonia were determined using a strict adjudication process to insure accuracy of pneumonia diagnoses. Quantitative characteristics were analyzed in SPSS to compare differences between "true" pneumonia cases and nonpneumonia cases.

resultsTwenty-four of 333 (7.2%) patients had mention the diagnosis of pneumonia in the registry and/or medical record. Of these cases, only 15 (4.5%) met evidence-based diagnostic criteria for hospital-acquired pneumonia. The 15 adjudicated cases had similar median admission NIHSS scores to nonpneumonia cases (10 vs. 9, respectively; P = ns), but were older (74 ± 15 vs. 64 ± 17 years; mean difference 9.889, 95 CI = 1.2-18.6; P = 0.026). A total of eight patients with pneumonia were intubated and mechanically ventilated, and one patient received bilevel positive airway pressure ventilation during the 0° positioning period. Pneumonia cases had significantly longer hospitalizations (14.5 ± 12 vs. 6.6 ± 9 days; mean difference 7.97, 95% CI = 1.1-14.8; P = 0.026) and higher median discharge mRS score (4 vs. 3: P = 0.003).

conclusionsZero-degree head of bed positioning in the first 24 h following an acute ischemic stroke treated with IV-tPA was associated with acceptable rates of pneumonia. Rates for pneumonia may be further reduced by eliminating use of a 0° protocol in intubated/mechanically ventilated patients.

Indexed as

HeadPatient PositioningAdultAgedAged, 80 and overAge FactorsBrain IschemiaFibrinolytic AgentsHumansMiddle AgedPneumoniaProspective StudiesRecombinant ProteinsRegistriesRetrospective StudiesRiskFibrinolytic AgentsRecombinant ProteinsTissue Plasminogen ActivatorAcute ischemic strokehead of bed positioninghospital‐acquired pneumonia

Identifiers

PMID27110447
PMCPMC4834933
OpenAlexW2367213246

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.