Evidence map›Paper›PMID 30699182›Full record

ArticlePloS one2019

Assessment of displacement ventilation systems in airborne infection risk in hospital rooms.

José Manuel Villafruela, Inés Olmedo, Félix A Berlanga, Manuel Ruiz de Adana

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

11 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Review
  7. COVID-19, A new challenge in the dental practice.Journal of clinical and experimental dentistry · 2021
    Review
  8. Engineering Solutions for Preventing Airborne Transmission in Hospitals with Resource Limitation and Demand Surge.Indian journal of critical care medicine : peer-reviewed, official publication of Indian Society of Critical Care Medicine · 2021
    Review
  9. Impact of HVAC-Systems on the Dispersion of Infectious Aerosols in a Cardiac Intensive Care Unit.International journal of environmental research and public health · 2020
    Article
  10. Review
  11. Review
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

4 authors at 2 institutions in 1 country.

José Manuel VillafruelaITAP, Department of Energy and Fluid Mechanics, University of Valladolid, Valladolid, Spain.ORCID 0000-0003-0491-4371
Inés OlmedoDepartment of Physical Chemistry and Applied Thermodynamics, University of Cordoba, Córdoba, Spain.
Félix A BerlangaDepartment of Physical Chemistry and Applied Thermodynamics, University of Cordoba, Córdoba, Spain.ORCID 0000-0001-5617-389X
Manuel Ruiz de AdanaDepartment of Physical Chemistry and Applied Thermodynamics, University of Cordoba, Córdoba, Spain.ORCID 0000-0002-7890-7505
University of Córdoba · ESUniversidad de Valladolid · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Efficient ventilation in hospital airborne isolation rooms is important vis-à-vis decreasing the risk of cross infection and reducing energy consumption. This paper analyses the suitability of using a displacement ventilation strategy in airborne infection isolation rooms, focusing on health care worker exposure to pathogens exhaled by infected patients. The analysis is mainly based on numerical simulation results obtained with the support of a 3-D transient numerical model validated using experimental data. A thermal breathing manikin lying on a bed represents the source patient and another thermal breathing manikin represents the exposed individual standing beside the bed and facing the patient. A radiant wall represents an external wall exposed to solar radiation. The air change efficiency index and contaminant removal effectiveness indices and inhalation by the health care worker of contaminants exhaled by the patient are considered in a typical airborne infection isolation room set up with three air renewal rates (6 h-1, 9 h-1 and 12 h-1), two exhaust opening positions and two health care worker positions. Results show that the radiant wall significantly affects the air flow pattern and contaminant dispersion. The lockup phenomenon occurs at the inhalation height of the standing manikin. Displacement ventilation renews the air of the airborne isolation room and eliminates the exhaled pollutants efficiently, but is at a disadvantage compared to other ventilation strategies when the risk of exposure is taken into account.

Indexed as

Air MovementsAir FiltersAir PollutantsAir Pollution, IndoorDisease Transmission, InfectiousHospitalsHumansInhalation ExposureRespirationVentilationAir Pollutants

Identifiers

PMID30699182
PMCPMC6353581
OpenAlexW2912376749

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.