Evidence map›Paper›PMID 35372418›Full record

ArticleFrontiers in medicine2022

Accessory and Expiratory Muscles Activation During Spontaneous Breathing Trial: A Physiological Study by Surface Electromyography.

Matteo Pozzi, Emanuele Rezoagli, Alfio Bronco, Francesca Rabboni, Giacomo Grasselli, Giuseppe Foti, Giacomo Bellani

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Frontiers in medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07514117 (Electroacupuncture With Different Pulse Patterns for the Post-acute Phase of Bell's Palsy), which is not on this 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
3.8field-weighted citation impact, top 5% 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.

NCT07514117 nanot yet recruitingnot on this mapstarted 2026, after this paper: background citation

Electroacupuncture With Different Pulse Patterns for the Post-acute Phase of Bell's Palsy: a Study Protocol for a Randomized Controlled Trial With Surface Electromyography Evaluation

TypeinterventionalSponsorThe First Affiliated Hospital of Zhejiang Chinese Medical UniversityRan2026 to 2027Enrolled111ConditionsBell PalsyArmssham EA, Electroacupunture(continuous pulse pattern), Electroacupuncture(intermittent pulse pattern)
3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Observational
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  7. Article
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  10. Review
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  13. Review
  14. Article
  15. Expiratory Muscles of Respiration and Weaning Failure: What do We Know So Far?Indian journal of critical care medicine : peer-reviewed, official publication of Indian Society of Critical Care Medicine · 2023
    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

7 authors at 3 institutions in 1 country.

Matteo PozziDepartment of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.
Emanuele RezoagliDepartment of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.
Alfio BroncoDepartment of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.
Francesca RabboniDepartment of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.
Giacomo GrasselliDepartment of Anesthesia, Intensive Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Giuseppe FotiDepartment of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.
Giacomo BellaniDepartment of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.
University of Milano-Bicocca · ITAzienda Ospedaliera San Gerardo · ITFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The physiological and prognostical significance of accessory and expiratory muscles activation is unknown during a spontaneous breathing trial (SBT). We hypothesized that, in patients experiencing weaning failure, accessory and expiratory muscles are activated to cope with an increased respiratory workload. Purpose: To describe accessory and expiratory muscle activation non-invasively by surface electromyography (sEMG) during an SBT and to assess differences in electrical activity (EA) of the inspiratory and expiratory muscles in successful vs. failing weaning patients. Methods: Intubated patients on mechanical ventilation for more than 48 h undergoing an SBT were enrolled in a medical and surgical third-level ICU of the University Teaching Hospital. Baseline characteristics and physiological variables were recorded in a crossover physiologic prospective clinical study. Results: Of 37 critically ill mechanically ventilated patients, 29 (78%) patients successfully passed the SBT. Rapid shallow breathing index (RSBI) was higher in patients who failed SBT compared with the successfully weaned patients at baseline and over time (group-by-time interaction Conclusion: Non-invasive respiratory muscle monitoring by sEMG was feasible during SBT. Respiratory muscles EA increased during SBT, regardless of SBT outcome, and patients who failed the SBT had a higher increase of all the inspiratory muscles EA compared with the patients who passed the SBT. Recruitment of expiratory muscles-as quantified by sEMG-is associated with SBT failure.

Indexed as

electrical activityexpiratory musclesinspiratory musclesnon-invasive surface electromyographyspontaneous breathing trial (SBT)weaning

Identifiers

PMID35372418
PMCPMC8965594
OpenAlexW4220940674

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Registered trials

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.