Evidence map›Paper›PMID 33404963›Full record

Observational studySleep & breathing = Schlaf & Atmung2021

Changes in sleepiness and 24-h blood pressure following 4 months of CPAP treatment are not mediated by ICAM-1.

Victoria M Pak, David G Maislin, Brendan T Keenan, Raymond R Townsend, Bryndis Benediktsdottir, Sandra B Dunbar, Allan I Pack, Thorarinn Gislason, Samuel T Kuna

Open access · greenAbstract readObservational Study
In one paragraph

Observational study in Sleep & breathing = Schlaf & Atmung, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 43% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 3 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. 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 4 institutions in 2 countries.

Victoria M PakSchool of Nursing, Emory University, 1520 Clifton Road, 243, Atlanta, GA, 30322, USA. Victoria.m.pak@emory.edu.ORCID http://orcid.org/0000-0002-4081-8347
David G MaislinDivision of Sleep Medicine, Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA.
Brendan T KeenanDivision of Sleep Medicine, Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA.
Raymond R TownsendRenal-Electrolyte and Hypertension Division, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Bryndis BenediktsdottirDepartment of Sleep Medicine, Landspitali - The National University Hospital of Iceland, Reykjavik, Iceland.
Sandra B DunbarSchool of Nursing, Emory University, 1520 Clifton Road, 243, Atlanta, GA, 30322, USA.
Allan I PackDivision of Sleep Medicine, Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA.
Thorarinn GislasonDepartment of Sleep Medicine, Landspitali - The National University Hospital of Iceland, Reykjavik, Iceland.
Samuel T KunaDivision of Sleep Medicine, Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA.
University of Pennsylvania · USEmory University · USUniversity of Iceland · ISVeterans Health Administration · US

Funding

Understanding the relationship between obesity and tongue fat in humans and ratsP01HL094307 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI PACK, ALLAN I · 2009 to 2020
$23.7M
NHLBI NIH HHS P01 HL094307NIH HHS PO1-HL094307
6 · The paper itself

Abstract

objectiveContinuous positive airway pressure (CPAP) therapy reduces circulating intercellular adhesion molecule 1 (ICAM-1) in adults with obstructive sleep apnea (OSA). ICAM-1 levels may affect the daytime sleepiness and elevated blood pressure associated with OSA. We evaluated the association of changes from baseline in ICAM-1 with changes of objective and subjective measures of sleepiness, as well as 24-h ambulatory blood pressure monitoring (ABPM) measures, following 4 months of CPAP treatment.

methodsThe study sample included adults with newly diagnosed OSA. Plasma ICAM-1, 24-h ABPM, Epworth Sleepiness Scale (ESS), and psychomotor vigilance task (PVT) were obtained at baseline and following adequate CPAP treatment. The associations between changes in natural log ICAM-1 and changes in the number of lapses on PVT, ESS score, and 24-h mean arterial blood pressure (MAP) were assessed using multivariate regression models, controlling for a priori baseline covariates of age, sex, BMI, race, site, smoking status, physical activity, anti-hypertensive medications, AHI, and daily hours of CPAP use.

resultsAmong 140 adults (83% men), mean (± SD) body mass index (BMI) was 31.5 ± 4.2 kg/m

conclusionChanges in ICAM-1 levels were not related to changes in sleepiness or ABPM following CPAP treatment of adults with OSA. Future work should explore whether or not other biomarkers may have a role in mediating these treatment outcomes in adults with OSA.

Indexed as

AdultAgedBlood PressureBlood Pressure Monitoring, AmbulatoryContinuous Positive Airway PressureFemaleFollow-Up StudiesHumansIntercellular Adhesion Molecule-1MaleMiddle AgedSleep Apnea, ObstructiveSleepinessTreatment OutcomeICAM1 protein, humanIntercellular Adhesion Molecule-1Ambulatory blood pressure monitoringContinuous positive airway pressureIntercellular adhesion molecule-1Obstructive sleep apneaSleepiness

Identifiers

PMID33404963
PMCPMC9951106
OpenAlexW3120201093

What OpenQuestion holds

Textmetadata
LicenceTDM
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.