Evidence map›Paper›PMID 29344350›Full record

ReviewPerioperative medicine (London, England)2018

The sensitivity of the human thirst response to changes in plasma osmolality: a systematic review.

Fintan Hughes, Monty Mythen, Hugh Montgomery

Open access · goldAbstract readReview
In one paragraph

Review in Perioperative medicine (London, England), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 8% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Pooled it
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  5. Article
  6. Can We Protect Our Hearts by Sweating Out Excess Sodium?Exercise and sport sciences reviews · 2026
    Review
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  14. Hypodipsic hypernatremia after long-standing polydipsia in a cat with suspect neonatal head trauma.The Canadian veterinary journal = La revue veterinaire canadienne · 2023
    Article
  15. Article
  16. Cross-cultural variation in thirst perception in hot-humid and hot-arid environments: Evidence from two small-scale populations.American journal of human biology : the official journal of the Human Biology Council · 2022
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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 1 institution in 1 country.

Fintan HughesInstitute for Sport, Exercise and Health, University College London, 170 Tottenham Court Road, London, W1T 7HA UK.ORCID 0000-0003-3845-8802
Monty MythenInstitute for Sport, Exercise and Health, University College London, 170 Tottenham Court Road, London, W1T 7HA UK.
Hugh MontgomeryInstitute for Sport, Exercise and Health, University College London, 170 Tottenham Court Road, London, W1T 7HA UK.
English Institute of Sport · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDehydration is highly prevalent and is associated with adverse cardiovascular and renal events. Clinical assessment of dehydration lacks sensitivity. Perhaps a patient's thirst can provide an accurate guide to fluid therapy. This systematic review examines the sensitivity of thirst in responding to changes in plasma osmolality in participants of any age with no condition directly effecting their sense of thirst.

methodsMedline and EMBASE were searched up to June 2017. Inclusion criteria were all studies reporting the plasma osmolality threshold for the sensation of thirst.

resultsA total of 12 trials were included that assessed thirst intensity on a visual analogue scale, as a function of plasma osmolality (pOsm), and employed linear regression to define the thirst threshold. This included 167 participants, both healthy controls and those with a range of pathologies, with a mean age of 41 (20-78) years.The value ±95% CI for the pOsm threshold for thirst sensation was found to be 285.23 ± 1.29 mOsm/kg. Above this threshold, thirst intensity as a function of pOsm had a mean ± SEM slope of 0.54 ± 0.07 cm/mOsm/kg. The mean ± 95% CI vasopressin release threshold was very similar to that of thirst, being 284.3 ± 0.71 mOsm/kg.Heterogeneity across studies can be accounted for by subtle variation in experimental protocol and data handling.

conclusionThe thresholds for thirst activation and vasopressin release lie in the middle of the normal range of plasma osmolality. Thirst increases linearly as pOsm rises. Thus, osmotically balanced fluid administered as per a patient's sensation of thirst should result in a plasma osmolality within the normal range. This work received no funding.

Indexed as

DehydrationOsmoregulationThirst

Identifiers

PMID29344350
PMCPMC5763530
OpenAlexW2783023928

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.