Evidence map›Paper›PMID 22903981›Full record

ArticleExperimental physiology2013

Elevated local skin temperature impairs cutaneous vasoconstrictor responses to a simulated haemorrhagic challenge while heat stressed.

J Pearson, R A I Lucas, C G Crandall

Open access · bronzeAbstract read
In one paragraph

Article in Experimental physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.7field-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

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

  1. Pooled it
  2. Normothermic central hypovolemia tolerance reflects hyperthermic tolerance.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2014
    Trial
  3. Trial
  4. Article
  5. Efficiency of cutaneous heat diffusion after local hyperthermia for the treatment of itch.Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) · 2023
    Article
  6. Neural control of blood pressure is altered following isolated leg heating in aged humans.American journal of physiology. Heart and circulatory physiology · 2020
    Article
  7. Impact of environmental stressors on tolerance to hemorrhage in humans.American journal of physiology. Regulatory, integrative and comparative physiology · 2019
    Article
  8. Article
  9. Article
  10. Review
  11. Active and passive heat stress similarly compromise tolerance to a simulated hemorrhagic challenge.American journal of physiology. Regulatory, integrative and comparative physiology · 2014
    Article
  12. Article
  13. Review
  14. Review
  15. 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

3 authors at 3 institutions in 1 country.

J PearsonUniversity of Texas Southwestern Medical Center at Dallas and Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital at Dallas, TX 75023, USA.
R A I Lucas
C G Crandall
Institute for Exercise and Environmental Medicine · USTexas Health Dallas · USThe University of Texas Southwestern Medical Center · US

Funding

Exercise in Burn Survivors - Administrative Supplement for EquipmentR01GM068865 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI CRANDALL, CRAIG G · 2003 to 2023
$7.0M
HYPERTHERMIA EFFECTS ON HUMAN BAROFLEX FUNCTIONR01HL061388 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI CRANDALL, CRAIG G · 1999 to 2011
$2.4M
Neural and non-neural modulators of skin blood flow and sweating in humansR01HL084072 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI CRANDALL, CRAIG G · 2006 to 2009
$1.3M
NHLBI NIH HHS HL84072NHLBI NIH HHS R01 HL061388NHLBI NIH HHS R01 HL084072NHLBI NIH HHS R01 HL61388NIGMS NIH HHS R01 GM068865
6 · The paper itself

Abstract

During a simulated haemorrhagic challenge, syncopal symptoms develop sooner when individuals are hyperthermic relative to normothermic. This is due, in part, to a large displacement of blood to the cutaneous circulation during hyperthermia, coupled with inadequate cutaneous vasoconstriction during the hypotensive challenge. The influence of local skin temperature on these cutaneous vasoconstrictor responses is unclear. This project tested the hypothesis that local skin temperature modulates cutaneous vasoconstriction during simulated haemorrhage in hyperthermic humans. Eight healthy participants (four men and four women; 32 ± 7 years old; 75.2 ± 10.8 kg) underwent lower-body negative pressure to presyncope while heat stressed via a water-perfused suit sufficiently to increase core temperature by 1.2 ± 0.2 °C. At forearm skin sites distal to the water-perfused suit, local skin temperature was either 35.2 ± 0.6 (mild heating) or 38.2 ± 0.2 °C (moderate heating) throughout heat stress and lower-body negative pressure, and remained at these temperatures until presyncope. The reduction in cutaneous vascular conductance during the final 90 s of lower-body negative pressure, relative to heat-stress baseline, was greatest at the mildly heated site (-10 ± 15% reduction) relative to the moderately heated site (-2 ± 12%; P = 0.05 for the magnitude of the reduction in cutaneous vascular conductance between sites), because vasoconstriction at the moderately heated site was either absent or negligible. In hyperthermic individuals, the extent of cutaneous vasoconstriction during a simulated haemorrhage can be modulated by local skin temperature. In situations where skin temperature is at least 38 °C, as is the case in soldiers operating in warm climatic conditions, a haemorrhagic insult is unlikely to be accompanied by cutaneous vasoconstriction.

Indexed as

Heat-Shock ResponseSkin TemperatureVasoconstrictionAdultArterial PressureFemaleHeat Stress DisordersHemorrhageHumansHyperthermia, InducedLower Body Negative PressureMaleSkinSyncopeTime Factors

Identifiers

PMID22903981
PMCPMC4962793
OpenAlexW1955396013

What OpenQuestion holds

Textmetadata
LicenceTDM
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.