Evidence map›Paper›PMID 33328406›Full record

ArticleInternal medicine (Tokyo, Japan)2021

Two Cases of Post-intubation Laryngotracheal Stenosis Occurring after Severe COVID-19.

Maki Miwa, Mikio Nakajima, Richard H Kaszynski, Syoichiro Hamada, Tomotsugu Nakano, Masamitsu Shirokawa, Hideaki Goto, Yoshihiro Yamaguchi

Open access · diamondAbstract readCase Reports
In one paragraph

Article in Internal medicine (Tokyo, Japan), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.9field-weighted citation impact, top 7% 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

18 citing papers in PubMed, 29 citations in OpenAlex.

  1. Is COVID-19 Infection A Risk Factor for Intubation-Related Acquired Airway Stenosis?Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2026
    Article
  2. Using a customizable L stent for laryngotracheal stenosis: Patterns of success and failure.World journal of otorhinolaryngology - head and neck surgery · 2025
    Review
  3. COVID-19 Related Tracheal Stenosis Requiring Tracheal Resection: A Case Series.The Annals of otology, rhinology, and laryngology · 2024
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  11. Post-COVID-19 airway stenosis treated by tracheal resection and anastomosis: a bicentric experience.Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale · 2022
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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

8 authors at 2 institutions in 1 country.

Maki MiwaEmergency and Critical Care Center, Tokyo Metropolitan Hiroo Hospital, Japan.
Mikio NakajimaEmergency and Critical Care Center, Tokyo Metropolitan Hiroo Hospital, Japan.
Richard H KaszynskiEmergency and Critical Care Center, Tokyo Metropolitan Hiroo Hospital, Japan.
Syoichiro HamadaEmergency and Critical Care Center, Tokyo Metropolitan Hiroo Hospital, Japan.
Tomotsugu NakanoEmergency and Critical Care Center, Tokyo Metropolitan Hiroo Hospital, Japan.
Masamitsu ShirokawaEmergency and Critical Care Center, Tokyo Metropolitan Hiroo Hospital, Japan.
Hideaki GotoEmergency and Critical Care Center, Tokyo Metropolitan Hiroo Hospital, Japan.
Yoshihiro YamaguchiDepartment of Trauma and Critical Care Medicine, Kyorin University School of Medicine, Japan.
Tokyo Metropolitan Hiroo Hospital · JPKyorin University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We experienced two cases of post-intubation laryngotracheal stenosis (PILS) occurring in patients after acute coronavirus disease (COVID)-19 in a relatively narrow time period. The patients required mechanical ventilation for 9 days in one and 28 days in the other. In both cases, the patients were discharged but later developed symptoms of cough and dyspnea, which were later diagnosed as PILS. Persistent cough and dyspnea are common symptoms in both PILS and the recovery phase of severe COVID-19. For this reason, PILS should be considered in the differential diagnosis post-COVID-19 patients. In addition, the prevalence of PILS may be greater than that of other critical diseases in severe COVID-19 patients.

Indexed as

AdultCoughCOVID-19DyspneaFemaleHumansIntubation, IntratrachealLaryngoscopyLungMaleMiddle AgedRadiography, ThoracicRespiration, ArtificialSARS-CoV-2Tomography, X-Ray ComputedTracheacoronavirus disease 19COVID-19mechanical ventilationpost-intubation laryngotracheal stenosisSARS-CoV-2tracheal stenosis

Identifiers

PMID33328406
PMCPMC7925275
OpenAlexW3111496391

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.