Evidence map›Paper›PMID 23295586›Full record

ArticleClinics (Sao Paulo, Brazil)2012

Supine sleep and positional sleep apnea after acute ischemic stroke and intracerebral hemorrhage.

Millene R Camilo, Regina M F Fernandes, Heidi H Sander, Fernando Nobre, Taiza Santos-Pontelli, Antonio C dos Santos, Draulio B de Araujo, João P Leite, Octavio M Pontes-Neto

Open access · goldAbstract read
In one paragraph

Article in Clinics (Sao Paulo, Brazil), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.3field-weighted citation impact, top 38% 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, 21 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Wake-up Call to Identify Obstructive Sleep Apnea in Patients with Ischemic Strokes.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2016
    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

9 authors at 3 institutions in 1 country.

Millene R CamiloUniversity of São Paulo, Ribeirão Preto School of Medicine, Neurology Division, Department of Neuroscience and Behavioral Sciences, Ribeirão Preto/SP, Brazil.
Regina M F Fernandes
Heidi H Sander
Fernando Nobre
Taiza Santos-Pontelli
Antonio C dos Santos
Draulio B de Araujo
João P Leite
Octavio M Pontes-Neto
Universidade de Ribeirão Preto · BRUniversidade de São Paulo · BRUniversidade Federal do Rio Grande do Norte · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveObstructive sleep apnea is frequent during the acute phase of stroke, and it is associated with poorer outcomes. A well-established relationship between supine sleep and obstructive sleep apnea severity exists in non-stroke patients. This study investigated the frequency of supine sleep and positional obstructive sleep apnea in patients with ischemic or hemorrhagic stroke.

methodsPatients who suffered their first acute stroke, either ischemic or hemorrhagic, were subjected to a full polysomnography, including the continuous monitoring of sleep positions, during the first night after symptom onset. Obstructive sleep apnea severity was measured using the apnea-hypopnea index, and the NIHSS measured stroke severity.

resultsWe prospectively studied 66 stroke patients. The mean age was 57.6 ± 11.5 years, and the mean body mass index was 26.5 ± 4.9. Obstructive sleep apnea (apnea-hypopnea index ≥5) was present in 78.8% of patients, and the mean apnea-hypopnea index was 29.7 ± 26.6. The majority of subjects (66.7%) spent the entire sleep time in a supine position, and positional obstructive sleep apnea was clearly present in the other 23.1% of cases. A positive correlation was observed between the NIHSS and sleep time in the supine position (r(s) = 0.5; p<0.001).

conclusionsProlonged supine positioning during sleep was highly frequent after stroke, and it was related to stroke severity. Positional sleep apnea was observed in one quarter of stroke patients, which was likely underestimated during the acute phase of stroke. The adequate positioning of patients during sleep during the acute phase of stroke may decrease obstructive respiratory events, regardless of the stroke subtype.

Indexed as

Body Mass IndexCerebral HemorrhageEpidemiologic MethodsFemaleHumansMaleMiddle AgedPolysomnographySleepSleep Apnea, ObstructiveStrokeSupine PositionTime Factors

Identifiers

PMID23295586
PMCPMC3521795
OpenAlexW2032434247

What OpenQuestion holds

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LicenceCC BY-NC
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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.