Evidence map›Paper›PMID 30479778›Full record

ArticleAnnals of occupational and environmental medicine2018

Changes of hemodynamic and cerebral oxygenation after exercise in normobaric and hypobaric hypoxia: associations with acute mountain sickness.

Tobias Kammerer, Valentina Faihs, Nikolai Hulde, Andreas Bayer, Max Hübner, Florian Brettner, Walter Karlen, Julia Maria Kröpfl, Markus Rehm, Christina Spengler and 1 more

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Annals of occupational and environmental medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06446427 (The Effect of Acute High Altitude Exposure on Rescuer Performance and Patient Care), 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
1.4field-weighted citation impact, top 16% 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.

NCT06446427 nacompletednot on this mapstarted 2024, after this paper: background citation

The Effect of Acute High Altitude Exposure on Rescuer Performance and Patient Care

TypeinterventionalSponsorInsel Gruppe AG, University Hospital BernRan2024 to 2025Enrolled20ConditionsHigh Altitude, Hypobaric Hypoxia, Risk ReductionArmsAcute high altitude exposure, Acute high altitude exposure, with supplementary oxygen, Subacute high altitude exposure, after having spent a night at high altitude
3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. The effects of environmental hypoxia on substrate utilisation during exercise: a meta-analysis.Journal of the International Society of Sports Nutrition · 2019
    Pooled it
  3. Trial
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Combining hypoxia with thermal stimuli in humans: physiological responses and potential sex differences.American journal of physiology. Regulatory, integrative and comparative physiology · 2023
    Review
  11. Article
  12. Review
  13. Review
  14. Observational
  15. Article
  16. 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

11 authors at 4 institutions in 3 countries.

Tobias KammererDepartment of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany.ORCID 0000-0001-8920-7187
Valentina FaihsDepartment of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany.
Nikolai Hulde5Institute of Anesthesiology, Heart and Diabetes Center NRW, Ruhr University Bochum, Georgstr. 11, 32545 Bad Oeynhausen, Germany.
Andreas BayerDepartment of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany.
Max HübnerDepartment of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany.
Florian BrettnerDepartment of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany.
Walter Karlen4Mobile Health Systems Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, Lengghalde 5, 8092 Zurich, Switzerland.
Julia Maria Kröpfl3Exercise Physiology Lab, Institute of Human Movement Sciences and Sport, ETH Zurich, Winterthurerstr. 190, 8057 Zurich, Switzerland.
Markus RehmDepartment of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany.
Christina Spengler3Exercise Physiology Lab, Institute of Human Movement Sciences and Sport, ETH Zurich, Winterthurerstr. 190, 8057 Zurich, Switzerland.
Simon Thomas SchäferDepartment of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany.
LMU Klinikum · DEHeart and Diabetes Center North Rhine-Westphalia · DEUniversity of Zurich · CHETH Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveNormobaric (NH) and hypobaric hypoxia (HH) are associated with acute mountain sickness (AMS) and cognitive dysfunction. Only few variables, like heart-rate-variability, are correlated with AMS. However, prediction of AMS remains difficult. We therefore designed an expedition-study with healthy volunteers in NH/HH to investigate additional non-invasive hemodynamic variables associated with AMS.

methodsEleven healthy subjects were examined in NH (FiO

resultsHH increased heart rate (HR), mean arterial pressure (MAP) and CI and decreased LVET, SV and ICON, whereas NH increased HR and decreased LVET. In both NH and HH cerebral oxygenation decreased and LLS increased significantly. After 24 h in HH, 6 of 11 subjects (54.6%) developed AMS. LLS remained increased until 24 h in HH, whereas cognitive function remained unaltered. In HH, HR and LLS were inversely correlated (

conclusionsBoth acute NH and HH altered hemodynamic and cerebral oxygenation and induced AMS. Subjects, who adapted their CI had higher rScO2 and lower LLS. Furthermore, rScO2 after exercise under normobaric conditions was associated with AMS at high altitudes.

Indexed as

Acute mountain sicknessCerebral oxygenationCognitive dysfunctionHypobaric hypoxiaNear-infrared spectroscopyNormobaric hypoxia

Identifiers

PMID30479778
PMCPMC6245893
OpenAlexW2901549860

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.