Evidence map›Paper›PMID 31012225›Full record

Trial reportRespirology (Carlton, Vic.)2019

Automatic EPAP intelligent volume-assured pressure support is effective in patients with chronic respiratory failure: A randomized trial.

Jeremy E Orr, John Coleman, Gerard J Criner, Krishna M Sundar, Sheila C Tsai, Adam V Benjafield, Maureen E Crocker, Leslee Willes, Atul Malhotra, Robert L Owens and 1 more

Registry-linked trialOpen access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Respirology (Carlton, Vic.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02683772 (The Evaluation of the Astral VAPS AutoEPAP Treatment Algorithm), which is not on this map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
4.4field-weighted citation impact, top 5% 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.

NCT02683772 phase3completednot on this map

The Evaluation of the Astral VAPS AutoEPAP Treatment Algorithm

TypeinterventionalSponsorResMedRan2016 to 2017Enrolled42ConditionsUpper Airway Obstruction, Respiratory Insufficiency, Respiratory FailureArmsAstral
3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 39 citations in OpenAlex.

  1. Pooled it
  2. Guideline
  3. Trial
  4. Review
  5. Ventilation in the obese: physiological insights and management.European respiratory review : an official journal of the European Respiratory Society · 2025
    Review
  6. Clinical review of non-invasive ventilation.The European respiratory journal · 2024
    Review
  7. Review
  8. Review
  9. Review
  10. Review
  11. Ventilators, Settings, Autotitration Algorithms.Journal of clinical medicine · 2023
    Review
  12. Article
  13. APAP, BPAP, CPAP, and New Modes of Positive Airway Pressure Therapy.Advances in experimental medicine and biology · 2022
    Review
  14. Review
  15. Review
  16. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 7 institutions in 2 countries.

Jeremy E OrrDepartment of Medicine, University of California, San Diego, La Jolla, CA, USA.ORCID 0000-0002-4498-5337
John ColemanDepartment of Medicine and Neurology, Northwestern Medical Hospital, Chicago, IL, USA.
Gerard J CrinerDepartment of Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA.
Krishna M SundarDepartment of Medicine, University of Utah, Salt Lake City, UT, USA.
Sheila C TsaiNational Jewish Health, Denver, CO, USA.
Adam V BenjafieldResMed Science Center, San Diego, CA, USA.
Maureen E CrockerResMed Science Center, San Diego, CA, USA.
Leslee WillesWilles Consulting Group, San Diego, CA, USA.
Atul MalhotraDepartment of Medicine, University of California, San Diego, La Jolla, CA, USA.ORCID 0000-0002-7021-9302
Robert L OwensDepartment of Medicine, University of California, San Diego, La Jolla, CA, USA.ORCID 0000-0002-6515-6204
Lisa F WolfeDepartment of Medicine and Neurology, Northwestern Medical Hospital, Chicago, IL, USA.
University of California San Diego · USNorthwestern Memorial Hospital · USResMed (United States) · USNational Jewish Health · USPA Consulting Group · GBTemple University · USUniversity of Utah · US

Funding

Neural Plasticity During Acclimatization to HypoxiaR01HL081823 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI POWELL, FRANK L. · 2005 to 2019
$4.5M
Single Motor Unit Genioglossus Recordings to Understand Sleep Apnea PathogenesisR01HL085188 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI MALHOTRA, ATUL · 2008 to 2018
$3.5M
Sleep Apnea in Survivors of Childhood Cancer Treated with Thoracic Radiation (APNEA)R01CA215405 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI KRULL, KEVIN R, MANDRELL, BELINDA N · 2017 to 2021
$3.5M
Imaging Blood Flow, Ventilation, and Density InteractionsR01HL119201 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI HOPKINS, SUSAN R · 2016 to 2019
$2.5M
San Diego Team Asthma Management using Phenotypes (STAMP)UG1HL139117 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI AKUTHOTA, PRAVEEN, JAIN, SONIA · 2017 to 2022
$2.2M
Training in the Next Generation in Respiratory ScienceT32HL134632 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI MALHOTRA, ATUL, POWELL, FRANK L. · 2017 to 2021
$2.1M
Chemogenetic dissection of noradrenergic system and sleep apnea.R01HL133847 · NHLBI · BRENTWOOD BIOMEDICAL RESEARCH INSTITUTE · PI FENIK, VICTOR BORISOVICH, RUKHADZE, IRMA · 2017 to 2020
$1.3M
Breath stacking dyssynchrony in acute respiratory distress syndromeK23HL133489 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BEITLER, JEREMY R. · 2017 to 2021
$871k
Assessment of Upper Airway Mechanics Using Newer Electromyographic TechniquesK24HL132105 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI MALHOTRA, ATUL · 2016 to 2020
$611k
Cerebral Diffusion: A new approach to sleep disordersR21HL138075 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DUBOWITZ, DAVID · 2017 to 2018
$426k
MR Imaging of Upper Airway Dynamics in Obstructive Sleep ApneaR21HL121794 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DARQUENNE, CHANTAL · 2014 to 2015
$423k
The Contribution of Ventilatory Instability to Sleep Disordered Breathing in Pulmonary HypertensionF32HL131306 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI ORR, JEREMY ELLIOT · 2016 to 2017
$139k
NCI NIH HHS R01 CA215405NHLBI NIH HHS F32 HL131306NHLBI NIH HHS F32 HL136202NHLBI NIH HHS K23 HL133489NHLBI NIH HHS K24 HL132105NHLBI NIH HHS R01 HL081823NHLBI NIH HHS R01 HL085188NHLBI NIH HHS R01 HL119201NHLBI NIH HHS R01 HL133847NHLBI NIH HHS R21 HL121794NHLBI NIH HHS R21 HL138075NHLBI NIH HHS T32 HL134632NHLBI NIH HHS UG1 HL139117
6 · The paper itself

Abstract

BACKGROUND AND

objectivePatients with chronic respiratory failure are increasingly managed with domiciliary non-invasive ventilation (NIV). There may be limited ability to provide NIV titration for these complex patients, and ventilatory requirements and upper airway support needs may change over time. Therefore, an automatically adjusting expiratory positive airway pressure (AutoEPAP) algorithm may offer advantages over manually adjusted EPAP for treating these patients. This study compared 4% oxygen desaturation index (ODI4%) values during the use of an AutoEPAP algorithm versus manual EPAP titration with the intelligent volume-assured pressure support (iVAPS) algorithm.

methodsThis prospective, single-blind, randomized, crossover study was conducted at six US sites. Patients with chronic respiratory failure (neuromuscular disease, chronic obstructive pulmonary disease, obesity hypoventilation and other aetiologies) and an apnoea-hypopnoea index of >5/h who were already established NIV users underwent a single night of NIV with the iVAPS manual EPAP and iVAPS AutoEPAP in the sleep laboratory in random order.

resultsA total of 38 patients constituted the study population. Mean ODI4% was statistically non-inferior with AutoEPAP versus manual EPAP (P < 0.0001). There was no difference in the effect on ODI4% across respiratory failure subgroups. Ventilation parameters and gas exchange were similar with either NIV mode, indicating equally effective treatment of respiratory failure. Sleep parameters were improved during AutoEPAP versus manual EPAP.

conclusionA single night of NIV using the iVAPS with AutoEPAP algorithm was non-inferior to a single night of iVAPS with manual EPAP titration in patients with respiratory failure. CLINICAL

trial registrationNCT02683772 at clinicaltrials.gov.

Indexed as

Noninvasive VentilationPositive-Pressure RespirationAdultCross-Over StudiesFemaleHumansMaleMiddle AgedNeuromuscular DiseasesObesity Hypoventilation SyndromePulmonary Disease, Chronic ObstructiveSingle-Blind MethodSleepTreatment Outcomechronic obstructive pulmonary diseaseneuromuscular diseasenon-invasive ventilationobesity hypoventilation syndromerespiratory failure

Identifiers

PMID31012225
PMCPMC7007762
OpenAlexW2941511337

What OpenQuestion holds

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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.