Evidence map›Paper›PMID 35421320›Full record

ArticleJournal of applied physiology (Bethesda, Md. : 1985)2022

Effects of fentanyl overdose-induced muscle rigidity and dexmedetomidine on respiratory mechanics and pulmonary gas exchange in sedated rats.

Philippe Haouzi, Nicole Tubbs

Open access · greenAbstract read
In one paragraph

Article in Journal of applied physiology (Bethesda, Md. : 1985), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
2.8field-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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Dose- and time-dependent physiological effects of fentanyl in adult goats.Journal of applied physiology (Bethesda, Md. : 1985) · 2026
    Article
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  10. Functional modulation of retrotrapezoid neurons drives fentanyl-induced respiratory depression.American journal of physiology. Lung cellular and molecular physiology · 2025
    Article
  11. Divergent ventilatory responses during opioid-induced respiratory depression in response to repeated fentanyl use.American journal of physiology. Lung cellular and molecular physiology · 2025
    Article
  12. Xylazine exacerbates fentanyl-induced respiratory depression and bradycardia.The Journal of pharmacology and experimental therapeutics · 2025
    Article
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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

2 authors at 1 institution in 1 country.

Philippe HaouziDivision of Pulmonary and Critical Care Medicine, Department of Medicine, College of Medicine, Pennsylvania State University, Hershey, Pennsylvania.ORCID 0000-0002-8181-4254
Nicole TubbsDivision of Pulmonary and Critical Care Medicine, Department of Medicine, College of Medicine, Pennsylvania State University, Hershey, Pennsylvania.
Pennsylvania State University · US

Funding

Treatment of Fentanyl Overdose-Induced Respiratory Failure by Low-Dose DexmedetomidineR61HL156248 · NHLBI · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI HAOUZI, PHILIPPE A · 2020 to 2020
$708k
NHLBI NIH HHS R61 HL156248
6 · The paper itself

Abstract

The objective of our study was to establish in sedated rats the consequences of high-dose fentanyl-induced acute muscle rigidity on the mechanical properties of the respiratory system and on the metabolic rate. Doses of fentanyl that we have previously shown to produce persistent rigidity of the muscles of the limbs and trunk in the rat (150-300 μg/kg iv), were administered in 23 volume-controlled mechanically ventilated and sedated rats. The effects of a low dose of the FDA-approved central α-2 agonist, dexmedetomidine (3 μg/kg iv), which has been suggested to oppose fentanyl-induced muscle rigidity, were determined after fentanyl administration. Fentanyl produced a significant decrease in compliance of the respiratory system (Crs) in all the rats that were studied. In 13 rats, an abrupt response occurred within 90 s, consisting of rapid rhythmic contractions of most skeletal muscles that were replaced by persistent tonic/tetanic contractions leading to a significant decrease of Crs (from 0.51 ± 0.11 mL/cmH

Indexed as

DexmedetomidineAnalgesics, OpioidAnimalsFentanylHypoxiaMuscle RigidityPulmonary Gas ExchangeRatsRespiratory MechanicsAnalgesics, OpioidDexmedetomidineFentanylhypoxemiamechanics of breathingopioid overdose

Identifiers

PMID35421320
PMCPMC9190730
OpenAlexW4224117617

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.