Evidence map›Paper›PMID 20232260›Full record

ArticleSleep & breathing = Schlaf & Atmung2011

Perioperative practical experiences in using a level 2 portable polysomnography.

Frances Chung, Pu Liao, Yuming Sun, Babak Amirshahi, Hoda Fazel, Colin M Shapiro, Hisham Elsaid

Registry-linked trialAbstract readMulticenter StudyValidation Study
PubMed Publisher
In one paragraph

Article in Sleep & breathing = Schlaf & Atmung, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02796846 (The Association of CPAP Compliance and Nocturnal Hypoxemia in the Perioperative Period), which is not on this map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.7field-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.

NCT02796846 completednot on this mapstarted 2015, after this paper: background citation

The Association of CPAP Compliance and Nocturnal Hypoxemia in the Perioperative Period

TypeobservationalSponsorUniversity Health Network, TorontoRan2015 to 2019Enrolled158ConditionsObstructive Sleep Apnea
3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Alternative scoring models of STOP-bang questionnaire improve specificity to detect undiagnosed obstructive sleep apnea.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2014
    Article
  9. Article
  10. Article
  11. Assessment of a wireless headband for automatic sleep scoring.Sleep & breathing = Schlaf & Atmung · 2013
    Article
  12. Article
  13. Obstructive sleep apnea devices for out-of-center (OOC) testing: technology evaluation.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2011
    Review
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

7 authors at 2 institutions in 1 country.

Frances ChungDepartment of Anesthesia, University of Toronto, Toronto Western Hospital, University Health Network, Toronto, ON, Canada. Frances.Chung@uhn.on.ca
Pu Liao
Yuming Sun
Babak Amirshahi
Hoda Fazel
Colin M Shapiro
Hisham Elsaid
Toronto Western Hospital · CAUniversity Health Network · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe objective of the study is to test the hypothesis that a level 2 portable sleep device (Embletta X100) is a reliable alternative for standard PSG in surgical patients.

methodsAfter hospital ethics approvals, preoperative patients over 18 years old were recruited. The patients for validation underwent standard PSG and Embletta X100 simultaneously in a sleep laboratory before surgery. The other patients received sleep studies with Embletta X100 perioperatively. The correlation analysis and paired Student t test between variables from Embletta and from standard PSG were used to evaluate the accuracy of Embletta. The quality of PSG recordings with Embletta was summarized.

resultTwenty-one patients completed sleep study on both systems; ten females and ten males, age was 54 ± 11 and BMI was 36 ± 9. There was a significant correlation between the majority of parameters from standard PSG and Embeltta X100 with manual scoring. The inter-rater agreement was substantial to perfect at different AHI cutoffs with a Kappa coefficient of 0.69 to 1. A significant correlation between standard PSG and Embletta X100 with automatic scoring was found only in AHI and a few other parameters. In 385 patients, 1,002 perioperative PSG recordings were carried out with Embletta. Of them, 889(88.7%) were technically good and 90(9%) technically acceptable. Only 23 (2.3%) PSG recordings failed.

conclusionEmbletta X100, installed by a well-trained sleep technician, is a good alternative when standard PSG was not available or impractical. Manual scoring by a certified PSG technologist is the key for reliable results.

Indexed as

Home Care ServicesPerioperative PeriodPoint-of-Care SystemsAdultAgedEquipment DesignFemaleHumansMaleMass ScreeningMiddle AgedMonitoring, AmbulatoryPolysomnographyReproducibility of ResultsSignal Processing, Computer-AssistedSleep Apnea, Obstructive

Identifiers

PMID20232260
OpenAlexW2127460548

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.