Evidence map›Paper›PMID 21832209›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2011

Validity of auscultatory and Penaz blood pressure measurements during profound heat stress alone and with an orthostatic challenge.

Matthew S Ganio, R Matthew Brothers, Rebekah A I Lucas, Jeffrey L Hastings, Craig G Crandall

Open access · greenAbstract readComparative StudyValidation Study
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
1.4field-weighted citation impact, top 20% 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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Review
  5. Neural control of blood pressure is altered following isolated leg heating in aged humans.American journal of physiology. Heart and circulatory physiology · 2020
    Article
  6. Article
  7. Effect of heat stress on vascular outcomes in humans.Journal of applied physiology (Bethesda, Md. : 1985) · 2019
    Review
  8. Acute limb heating improves macro- and microvascular dilator function in the leg of aged humans.American journal of physiology. Heart and circulatory physiology · 2017
    Article
  9. Article
  10. Article
  11. Review
  12. Cerebral oxygenation and hyperthermia.Frontiers in physiology · 2014
    Review
  13. 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

5 authors at 2 institutions in 1 country.

Matthew S GanioInstitute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, and University of Texas Southwestern Medical Center, Dallas, Texas, USA.
R Matthew Brothers
Rebekah A I Lucas
Jeffrey L Hastings
Craig G Crandall
Southwestern Medical Center · USInstitute for Exercise and Environmental Medicine · US

Funding

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 HL61388NHLBI NIH HHS HL84072.
6 · The paper itself

Abstract

Despite frequent reporting of blood pressure (BP) during profound passive heat stress, both with and without a hypotensive challenge, the method by which BP is measured often varies between laboratories. It is unknown whether auscultatory and finger BP measures accurately reflect intra-arterial BP during dynamic changes in cardiac output and peripheral resistance associated with the aforementioned conditions. The purpose of this investigation was to test the hypothesis that auscultatory BP measured at the brachial artery, and finger BP measured by the Penaz method, are valid measures of intra-arterial BP during a passive heat stress and a heat-stressed orthostatic challenge, via lower body negative pressure (LBNP). Absolute (specific aim 1) and the change in (specific aim 2) systolic (SBP), diastolic (DBP), and mean BPs (MBP) were compared at normothermia, after a core temperature increase of 1.47 ± 0.09°C, and during subsequent LBNP. Heat stress did not change auscultatory SBP (6 ± 11 mmHg; P = 0.16), but Penaz SBP (-22 ± 16 mmHg; P < 0.001) and intra-arterial SBP (-11 ± 13 mmHg P = 0.017) decreased. In contrast, DBP and MBP did not differ between methods throughout heat stress. Compared with BP before LBNP, the magnitude of the reduction in BP with all three methods was similar throughout LBNP (P > 0.05). In conclusion, auscultatory SBP and Penaz SBP failed to track the decrease in intra-arterial SBP that occurred during the profound heat stress, while decreases in arterial BP during an orthostatic challenge are comparable between methodologies.

Indexed as

AuscultationBlood PressureAdultAnalysis of VarianceBlood Pressure DeterminationBody Temperature RegulationBrachial ArteryCathetersDizzinessEquipment DesignFemaleFingersHeart RateHeat Stress DisordersHumansLower Body Negative Pressure

Identifiers

PMID21832209
PMCPMC3213935
OpenAlexW2083459498

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.