Evidence map›Paper›PMID 31559499›Full record

ArticleEuropean journal of applied physiology2019

Steady-state cerebral blood flow regulation at altitude: interaction between oxygen and carbon dioxide.

Hailey C Lafave, Shaelynn M Zouboules, Marina A James, Graeme M Purdy, Jordan L Rees, Craig D Steinback, Peter Ondrus, Tom D Brutsaert, Heidi E Nysten, Cassandra E Nysten and 3 more

Abstract read
PubMed Publisher
In one paragraph

Article in European journal of applied physiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.5field-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.

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

14 citing papers in PubMed, 29 citations in OpenAlex.

  1. Dynamic response of optic nerve sheath diameter to PaCOJournal of clinical monitoring and computing · 2026
    Article
  2. Review
  3. Review
  4. Characterizing the protective vasodilatory effects of hypobaric hypoxia on the neurovascular coupling response.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2025
    Article
  5. PaCONeurocritical care · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. 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

13 authors at 5 institutions in 2 countries.

Hailey C LafaveDepartment of Biology, Faculty of Science and Technology, Mount Royal University, 4825 Mount Royal Gate SW, Calgary, AB, T3E 6K6, Canada.
Shaelynn M ZouboulesDepartment of Biology, Faculty of Science and Technology, Mount Royal University, 4825 Mount Royal Gate SW, Calgary, AB, T3E 6K6, Canada.
Marina A JamesFaculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, AB, Canada.
Graeme M PurdyFaculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, AB, Canada.
Jordan L ReesFaculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, AB, Canada.
Craig D SteinbackFaculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, AB, Canada.
Peter OndrusDepartment of Family Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.
Tom D BrutsaertUniversity of Syracuse, Syracuse, NY, USA.
Heidi E NystenRed Deer Regional Hospital, Red Deer, AB, Canada.
Cassandra E NystenDepartment of Biology, Faculty of Science and Technology, Mount Royal University, 4825 Mount Royal Gate SW, Calgary, AB, T3E 6K6, Canada.
Ryan L HoilandCentre for Heart, Lung, and Vascular Health, University of British Columbia, Kelowna, BC, Canada.
Mingma T SherpaKunde Hospital, Khunde, Solukhumbu, Nepal.
Trevor A DayDepartment of Biology, Faculty of Science and Technology, Mount Royal University, 4825 Mount Royal Gate SW, Calgary, AB, T3E 6K6, Canada. tday@mtroyal.ca.ORCID http://orcid.org/0000-0001-7102-4235
University of Alberta · CAMount Royal University · CARed Deer Regional Hospital · CASyracuse University · USUniversity of British Columbia · CA

Funding

Natural Sciences and Engineering Research Council of Canada RGPIN-2016-04915
6 · The paper itself

Abstract

High-altitude ascent imposes a unique cerebrovascular challenge due to two opposing blood gas chemostimuli. Specifically, hypoxia causes cerebral vasodilation, whereas respiratory-induced hypocapnia causes vasoconstriction. The conflicting nature of these two superimposed chemostimuli presents a challenge in quantifying cerebrovascular reactivity (CVR) in chronic hypoxia. During incremental ascent to 4240 m over 7 days in the Nepal Himalaya, we aimed to (a) characterize the relationship between arterial blood gas stimuli and anterior, posterior and global (g)CBF, (b) develop a novel index to quantify cerebral blood flow (CBF) in relation to conflicting steady-state chemostimuli, and (c) assess these relationships with cerebral oxygenation (rSO

Indexed as

AcclimatizationAdultAltitudeBlood Flow VelocityBrainCarbon DioxideCarotid Artery, InternalCerebrovascular CirculationFemaleHumansHypocapniaHypoxiaMaleOxygenVasoconstrictionVertebral ArteryCarbon DioxideOxygenCerebral blood flowCerebrovascular reactivityHigh altitudeHypocapniaHypoxia

Identifiers

PMID31559499
OpenAlexW2976447196

What OpenQuestion holds

Textmetadata
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.