Evidence map›Paper›PMID 29574504›Full record

ReviewClinical autonomic research : official journal of the Clinical Autonomic Research Society2018

Ventilatory and cerebrovascular regulation and integration at high-altitude.

Ryan L Hoiland, Connor A Howe, Geoff B Coombs, Philip N Ainslie

Abstract readReview
PubMed Publisher
In one paragraph

Review in Clinical autonomic research : official journal of the Clinical Autonomic Research Society, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
6.5field-weighted citation impact, top 3% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 73 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Between-visit reproducibility of cerebrovascular and cardiovascular reactivity during the cold pressor test.American journal of physiology. Heart and circulatory physiology · 2026
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  15. Manipulation of iron status on cerebral blood flow at high altitude in lowlanders and adapted highlanders.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
    Article
  16. Combining hypoxia with thermal stimuli in humans: physiological responses and potential sex differences.American journal of physiology. Regulatory, integrative and comparative physiology · 2023
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Ryan L HoilandCentre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia-Okanagan Campus, 3333 University Way, Kelowna, BC, V1V 1V7, Canada. ryanleohoiland@gmail.com.ORCID http://orcid.org/0000-0002-5657-0059
Connor A HoweCentre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia-Okanagan Campus, 3333 University Way, Kelowna, BC, V1V 1V7, Canada.
Geoff B CoombsCentre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia-Okanagan Campus, 3333 University Way, Kelowna, BC, V1V 1V7, Canada.
Philip N AinslieCentre for Heart, Lung and Vascular Health, School of Health and Exercise Sciences, University of British Columbia-Okanagan Campus, 3333 University Way, Kelowna, BC, V1V 1V7, Canada.
University of British Columbia · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ascent to high-altitude elicits compensatory physiological adaptations in order to improve oxygenation throughout the body. The brain is particularly vulnerable to the hypoxemia of terrestrial altitude exposure. Herein we review the ventilatory and cerebrovascular changes at altitude and how they are both implicated in the maintenance of oxygen delivery to the brain. Further, the interdependence of ventilation and cerebral blood flow at altitude is discussed. Following the acute hypoxic ventilatory response, acclimatization leads to progressive increases in ventilation, and a partial mitigation of hypoxemia. Simultaneously, cerebral blood flow increases during initial exposure to altitude when hypoxemia is the greatest. Following ventilatory acclimatization to altitude, and an increase in hemoglobin concentration-which both underscore improvements in arterial oxygen content over time at altitude-cerebral blood flow progressively decreases back to sea-level values. The complimentary nature of these responses (ventilatory, hematological and cerebral) lead to a tightly maintained cerebral oxygen delivery while at altitude. Despite this general maintenance of global cerebral oxygen delivery, the manner in which this occurs reflects integration of these physiological responses. Indeed, ventilation directly influences cerebral blood flow by determining the prevailing blood gas and acid/base stimuli at altitude, but cerebral blood flow may also influence ventilation by altering central chemoreceptor stimulation via central CO

Indexed as

AltitudeRespirationAcclimatizationCerebrovascular CirculationHumansHypoxiaAcclimatizationCerebral blood flowHigh-altitudeVentilation

Identifiers

PMID29574504
OpenAlexW2794272841

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.