Evidence map›Paper›PMID 30758735›Full record

Observational studyNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2019

Stroke during sleep and obstructive sleep apnea: there is a link.

Yousef Mohammad, Ahmed Almutlaq, Abdullah Al-Ruwaita, Amjad Aldrees, Abdulaziz Alsubaie, Fawaz Al-Hussain

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
2.7field-weighted citation impact, top 9% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Observational
  5. Review
  6. Article
  7. Article
  8. International Consensus Statement on Obstructive Sleep Apnea.International forum of allergy & rhinology · 2023
    Review
  9. Review
  10. Review
  11. Article
  12. Observational
  13. Article
  14. Frequency of sleep-disordered breathing in a referral population of Somali-Americans.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2020
    Article
  15. Brain Awareness Week, CoVID-19 infection and Neurological Sciences.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2020
    Article
  16. Obstructive sleep apnea and ischemic stroke: a risk assessment.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2019
    Article
  17. 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

6 authors at 1 institution in 1 country.

Yousef MohammadDepartment of Internal Medicine, King Saud University, Riyadh, Saudi Arabia. ymohammad@ksu.edu.sa.ORCID http://orcid.org/0000-0003-1275-9391
Ahmed AlmutlaqDepartment of Internal Medicine, King Saud University, Riyadh, Saudi Arabia.
Abdullah Al-RuwaitaDepartment of Internal Medicine, King Saud University, Riyadh, Saudi Arabia.
Amjad AldreesDepartment of Internal Medicine, King Saud University, Riyadh, Saudi Arabia.
Abdulaziz AlsubaieDepartment of Internal Medicine, King Saud University, Riyadh, Saudi Arabia.
Fawaz Al-HussainDepartment of Internal Medicine, King Saud University, Riyadh, Saudi Arabia.
King Saud University · SA

Funding

GTP REGULATORY PROTEINS IN PITUITARY-DERIVED GH3 CELLSF06TW001438 · FIC · UNIVERSITY OF COLORADO DENVER · PI COOPER, DERMOT M · 1989 to 1989
–
Deanship of Scientific Research at King Saud University RGP-1438-008
6 · The paper itself

Abstract

objectivesThe onset of ischemic stroke symptoms has been established to have a diurnal variation, with a sizeable proportion (8-28%) occurring during sleep. Obstructive sleep apnea (OSA) has been established as an important risk factor for ischemic stroke. However, data on the relationship between OSA and wake-up stroke (WUS) has been scarce. The aim of our study is to determine the relationship between OSA and WUS.

methodsThis is a case-control study conducted on acute stroke patients who presented to one of two major medical centers in Riyadh of Saudi Arabia. Those who woke up with the symptoms were labeled as WUS, and those whose stroke occurred while awake were labeled as non wake-up stroke (NWUS). The Berlin Questionnaire, which was submitted to either the patient or his/her partner, was used to determine the frequency of OSA in the two groups.

resultsOne hundred seven patients (60% males) with acute stroke were admitted between March 2016 and March 2017. Of the 40 patients with WUS, 29 (72.5%) had underlying OSA based on the Berlin Questionnaire, whereas only 30 (45%) of the 67 patients with NWUS have underlying OSA. Logistic regression analysis showed OSA is highly prevalent in the patients with WUS (OR = 3.25; 95% CI = 1.397-8.38; p = 0.0053).

conclusionOSA is an important risk factor for ischemic stroke during sleep. Health care providers must be vigilant in inquiring about symptoms suggestive of OSA in every ischemic stroke patient, especially the patient whose stroke occurred during sleep.

Indexed as

SleepAdultAgedBrain IschemiaCase-Control StudiesFemaleHumansMaleMiddle AgedPrevalenceRisk FactorsSleep Apnea, ObstructiveStrokeWakefulnessBerlin QuestionnaireObstructive sleep apneaStrokeWake-up

Identifiers

PMID30758735
OpenAlexW2914706932

What OpenQuestion holds

Textmetadata
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.