Evidence map›Paper›PMID 31409407›Full record

Observational studyBMC pulmonary medicine2019

Hyperbaric oxygen therapy effects on pulmonary functions: a prospective cohort study.

Amir Hadanny, Tal Zubari, Liat Tamir-Adler, Yair Bechor, Gregory Fishlev, Erez Lang, Nir Polak, Jacob Bergan, Mony Friedman, Shai Efrati

Registry-linked trialOpen access · goldAbstract readObservational Study
In one paragraph

Observational study in BMC pulmonary medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03754985 (Hyperbaric Oxygen Therapy Effects on Pulmonary Functions), which is not on this map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
3.8field-weighted citation impact, top 6% 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.

NCT03754985 completednot on this map

Hyperbaric Oxygen Therapy Effects on Pulmonary Functions

TypeobservationalSponsorAssaf-Harofeh Medical CenterRan2016 to 2018Enrolled105ConditionsOxygen Toxicity, HyperoxiaArmsHyperbaric oxygen therapy
3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Translational medicine for acute lung injury.Journal of translational medicine · 2024
    Review
  11. Article
  12. Article
  13. Observational
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Review
  20. The Role of Hyperbaric Oxygen Treatment for COVID-19: A Review.Advances in experimental medicine and biology · 2021
    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

10 authors at 4 institutions in 1 country.

Amir HadannyThe Sagol Center for Hyperbaric Medicine and Research, Shamir Medical Center, Zerifin, Israel. Amir.had@gmail.com.ORCID http://orcid.org/0000-0001-9028-7268
Tal ZubariFaculty of Biomedical Engineering, Technion, Haifa, Israel.
Liat Tamir-AdlerFaculty of Biomedical Engineering, Technion, Haifa, Israel.
Yair BechorThe Sagol Center for Hyperbaric Medicine and Research, Shamir Medical Center, Zerifin, Israel.
Gregory FishlevThe Sagol Center for Hyperbaric Medicine and Research, Shamir Medical Center, Zerifin, Israel.
Erez LangThe Sagol Center for Hyperbaric Medicine and Research, Shamir Medical Center, Zerifin, Israel.
Nir PolakThe Sagol Center for Hyperbaric Medicine and Research, Shamir Medical Center, Zerifin, Israel.
Jacob BerganFaculty of Biomedical Engineering, Technion, Haifa, Israel.
Mony FriedmanFaculty of Biomedical Engineering, Technion, Haifa, Israel.
Shai EfratiThe Sagol Center for Hyperbaric Medicine and Research, Shamir Medical Center, Zerifin, Israel.
Assaf Harofeh Medical Center · ILTechnion – Israel Institute of Technology · ILBar-Ilan University · ILTel Aviv University · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOxygen toxicity is one potential side effect of hyperbaric oxygen therapy (HBOT). Previous small studies showed mild reductions in pulmonary functions reflecting reductions in small airway conductance after repetitive hyperbaric oxygen sessions. However, there are no updated data with well performed pulmonary tests that address the pulmonary effect of the currently used HBOT protocols. The aim of this study was to evaluate the effect of HBOT on pulmonary functions of patients receiving the currently used HBOT protocol.

methodsProspective analysis included patients, 18 years or older, scheduled for 60 daily HBOT sessions between 2016 and 2018. Each session was 90 min of 100% oxygen at 2 ATA with 5 min air breaks every 20 min, 5 days per week. Pulmonary functions, measured at baseline and after HBOT, included forced vital capacity (FVC), forced expiratory volume in 1 sec (FEV1) and peak expiratory flow rate (PEF).

resultsThe mean age was 60.36 ± 15.43 and 62.5% (55/88) were males. Most of the patients (83/88, 94.3%) did not have any pulmonary disease prior to inclusion and 30.7% (27/88) had a history of smoking. Compared to baseline values, at the completion of 60 HBOT sessions, there were no significant changes in FEV1 (0.163), FEV1/FVC ratio (0.953) and FEF25-75% (0.423). There was a statistically significant increase though not clinically relevant increase in FVC (0.1 ± 0.38 l) and PEF (0.5 ± 1.4 l) with a 0.014 and 0.001 respectively.

conclusionRegarding pulmonary functions, repeated hyperbaric oxygen exposure based on the currently used HBOT protocol is safe. Surprisingly, there was a modest non clinically significant though statistically significant improvement in PEF and FVC in the current cohort of patients who were without chronic lung diseases.

trial registrationClinicaltrials.gov, trial ID: NCT03754985 , (Nov 2018) Retrospectively registered.

Indexed as

Hyperbaric OxygenationAgedFemaleForced Expiratory VolumeHumansLinear ModelsLungMaleMiddle AgedPeak Expiratory Flow RateProspective StudiesVital CapacityHBOTHyperbaric oxygenOxygen toxicityPFTPulmonary function

Identifiers

PMID31409407
PMCPMC6693142
OpenAlexW2967363897

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.