ArticleAnaesthesia2021
The effect of respiratory activity, non-invasive respiratory support and facemasks on aerosol generation and its relevance to COVID-19.
Article in Anaesthesia, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 2 of them syntheses that pooled 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.
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.
Who cites it
61 citing papers in PubMed, 2 syntheses or guidelines pooled it, 122 citations in OpenAlex.
- Masks and respirators for prevention of respiratory infections: a state of the science review.Clinical microbiology reviews · 2024Pooled it
- Generation of Aerosols by Noninvasive Respiratory Support Modalities: A Systematic Review and Meta-Analysis.JAMA network open · 2023Pooled it
- Respiratory Particle Emissions in Tracheostomized Outpatients: Comparable to Healthy Volunteers.Laryngoscope investigative otolaryngology · 2026Article
- Aerosol emission and exposure in non-invasive ventilation.Scientific reports · 2025Article
- Characterization of respiratory particles released during continuous speech and its relation to mask performance.Scientific reports · 2025Article
- Portable UV-C device to treat high flow of infectious aerosols generated during clinical respiratory care.Scientific reports · 2024Article
- Bioaerosols and Airborne Transmission in the Dental Clinic.International dental journal · 2024Review
- Portable UV-C Device to Treat High Flow of Infectious Aerosols Generated during Clinical Respiratory Care.Research square · 2024Article
- Ventilator-Associated Pneumonia, Ventilator-Associated Events, and Nosocomial Respiratory Viral Infections on the Leeside of the Pandemic.Respiratory care · 2024Review
- The multi-dimensional challenges of controlling respiratory virus transmission in indoor spaces: Insights from the linkage of a microscopic pedestrian simulation and SARS-CoV-2 transmission model.PLoS computational biology · 2024Article
- Article
- Revisiting the personal protective equipment components of transmission-based precautions for the prevention of COVID-19 and other respiratory virus infections in healthcare.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2023Article
- The Complex Association between COPD and COVID-19.Journal of clinical medicine · 2023Review
- Lung aerosol particle emission increases with age at rest and during exercise.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- A novel negative pressure isolation device reduces aerosol exposure: A randomized controlled trial.Trends in anaesthesia & critical care · 2023Article
- Size distribution and relationship of airborne SARS-CoV-2 RNA to indoor aerosol in hospital ward environments.Scientific reports · 2023Article
- Evaluation of steam heat as a decontamination approach for SARS-CoV-2 when applied to common transit-related materials.Journal of applied microbiology · 2023Article
- Gastrointestinal Endoscopy in Patients with Coronavirus Disease 2019: Indications, Findings, and Safety.Gastroenterology clinics of North America · 2023Review
- Respiratory aerosol particle emission and simulated infection risk is greater during indoor endurance than resistance exercise.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- The Spread of Exhaled Air and Aerosols during Physical Exercise.Journal of clinical medicine · 2023Article
1 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
9 authors at 6 institutions in 2 countries.
Funding
Abstract
Respirable aerosols (< 5 µm in diameter) present a high risk of SARS-CoV-2 transmission. Guidelines recommend using aerosol precautions during aerosol-generating procedures, and droplet (> 5 µm) precautions at other times. However, emerging evidence indicates respiratory activities may be a more important source of aerosols than clinical procedures such as tracheal intubation. We aimed to measure the size, total number and volume of all human aerosols exhaled during respiratory activities and therapies. We used a novel chamber with an optical particle counter sampling at 100 l.min
Indexed as
Identifiers
What OpenQuestion holds
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.