Evidence map›Paper›PMID 32828864›Full record

ArticleThe Journal of hospital infection2020

Environmental contamination in the isolation rooms of COVID-19 patients with severe pneumonia requiring mechanical ventilation or high-flow oxygen therapy.

J Y Ahn, S An, Y Sohn, Y Cho, J H Hyun, Y J Baek, M H Kim, S J Jeong, J H Kim, N S Ku and 9 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of hospital infection, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 4 pooled it
12.8field-weighted citation impact, top 1% 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

47 citing papers in PubMed, 4 syntheses or guidelines pooled it, 116 citations in OpenAlex.

  1. Pooled it
  2. SARS-CoV-2: a systematic review of indoor air sampling for virus detection.Environmental science and pollution research international · 2021
    Pooled it
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  14. Transmission of SARS-CoV-2 in the workplace: Key findings from a rapid review of the literature.Aerosol science and technology : the journal of the American Association for Aerosol Research · 2023
    Article
  15. Closed Endotracheal Suction Systems for COVID-19: Rapid Review.Interactive journal of medical research · 2023
    Review
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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

19 authors at 3 institutions in 2 countries.

J Y AhnDepartment of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
S AnSchool of Mechanical Engineering, Yonsei University, Seoul, Republic of Korea.
Y SohnDepartment of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
Y ChoDepartment of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
J H HyunDepartment of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
Y J BaekDepartment of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
M H KimDepartment of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
S J JeongDepartment of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
J H KimDepartment of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
N S KuDepartment of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
J-S YeomDepartment of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
D M SmithDepartment of Medicine, University of California San Diego, La Jolla, CA, USA.
H LeeDepartment of Laboratory Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
D YongDepartment of Laboratory Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
Y-J LeeDepartment of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
J W KimDepartment of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
H R KimSchool of Mechanical Engineering, Yonsei University, Seoul, Republic of Korea.
J HwangSchool of Mechanical Engineering, Yonsei University, Seoul, Republic of Korea.
J Y ChoiDepartment of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea. Electronic address: seran@yuhs.ac.
Yonsei University · KRSeverance Hospital · KRUniversity of California San Diego · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIdentifying the extent of environmental contamination of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is essential for infection control and prevention. The extent of environmental contamination has not been fully investigated in the context of severe coronavirus disease (COVID-19) patients.

aimTo investigate environmental SARS-CoV-2 contamination in the isolation rooms of severe COVID-19 patients requiring mechanical ventilation or high-flow oxygen therapy.

methodsEnvironmental swab samples and air samples were collected from the isolation rooms of three COVID-19 patients with severe pneumonia. Patients 1 and 2 received mechanical ventilation with a closed suction system, while patient 3 received high-flow oxygen therapy and non-invasive ventilation. Real-time reverse transcription-polymerase chain reaction (rRT-PCR) was used to detect SARS-CoV-2; viral cultures were performed for samples not negative on rRT-PCR.

findingsOf the 48 swab samples collected in the rooms of patients 1 and 2, only samples from the outside surfaces of the endotracheal tubes tested positive for SARS-CoV-2 by rRT-PCR. However, in patient 3's room, 13 of the 28 environmental samples (fomites, fixed structures, and ventilation exit on the ceiling) showed positive results. Air samples were negative for SARS-CoV-2. Viable viruses were identified on the surface of the endotracheal tube of patient 1 and seven sites in patient 3's room.

conclusionEnvironmental contamination of SARS-CoV-2 may be a route of viral transmission. However, it might be minimized when patients receive mechanical ventilation with a closed suction system. These findings can provide evidence for guidelines for the safe use of personal protective equipment.

Indexed as

Practice Guidelines as TopicAir MicrobiologyCoronavirus InfectionsCOVID-19DecontaminationEnvironmental PollutionHumansHyperbaric OxygenationPandemicsPatients' RoomsPneumoniaPneumonia, ViralRespiration, ArtificialCOVID-19Environmental contaminationSARS-CoV-2Severe pneumonia

Identifiers

PMID32828864
PMCPMC7441047
OpenAlexW3081427692

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.