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Commentaries on Viewpoint: Looking beyond macroventilatory parameters and rethinking ventilator-induced lung injury

2018· letter· en· W3025959783 on OpenAlexaff
Li Zuo, Alicia Simpson, Paolo B. Dominelli, William R. Henderson

Bibliographic record

VenueJournal of Applied Physiology · 2018
Typeletter
Languageen
FieldMedicine
TopicRespiratory Support and Mechanisms
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsMechanical ventilationLungVentilation (architecture)MedicineTidal volumeAirwayMechanical ventilatorPositive end-expiratory pressureAnesthesiaRespiratory systemInternal medicineMechanical engineeringEngineering

Abstract

fetched live from OpenAlex

Current methods of mechanical ventilator management consist of mostly macroparameters that are only reflecting the values of the lungs as a whole and not considerate of heterogeneity of the microenvironment (2).Kollisch-Singule et al. ( 2) suggested the microenvironment of the lungs will undergo mechanical stress due to an unevenly distributed tidal volume during ventilation, resulting in lung injury, additional inflammation, and possible rupturing of alveolar cell membranes.We agree that the aforementioned side effects are a serious call for more research needing to be done in the field of mechanical ventilation techniques.The statement that there is no optimal positive end expiratory pressure (PEEP) for mechanical ventilation, as one of the potential macroparameters responsible for possible injuries, needs to be further explored (2).Setting the PEEP above the lower inflection point may have merit in preventing injuries in addition to keeping superimposed airway pressure below applied airway pressure to prevent potential collapses of lung units (1, 3).Sundersan et al. ( 4) created a new model-based recruitment tool that would help in determining an "optimal" PEEP by evaluating threshold opening pressure (TOP) and threshold closing pressure (TCP) distributed for each part of breathing cycles at a given PEEP.A standard deviation and mean value for TOP and TCP can be derived from the given information and the distributions uniquely depicted the patient's condition and state of their diseases (4, 5).This is a potential noteworthy way to individualize each patients' PEEP, and future studies should look more into recruitment models.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.005
metaresearch head score (Gemma)0.039
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Commentary · Consensus signal: Commentary
Teacher disagreement score0.058
Threshold uncertainty score0.036

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0050.039
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0020.002
Bibliometrics0.0010.001
Science and technology studies0.0030.004
Scholarly communication0.0030.005
Open science0.0030.002
Research integrity0.0580.056
Insufficient payload (model declined to judge)0.0080.010

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.019
GPT teacher head0.274
Teacher spread0.255 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreCommentary

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2018
Admission routes1
Has abstractyes

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