Evidence map›Paper›PMID 34805451›Full record

ArticleRegenerative therapy2021

Cell sheet transplantation prevents inflammatory adhesions: A new treatment for adhesive otitis media.

Kazuhisa Yamamoto, Tsunetaro Morino, Yoshiyuki Kasai, Shun Kikuchi, Manabu Komori, Masayuki Yamato, Hiromi Kojima

Open access · goldAbstract read
In one paragraph

Article in Regenerative therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

9 citing papers in PubMed, 12 citations in OpenAlex.

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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

7 authors at 3 institutions in 1 country.

Kazuhisa YamamotoDepartment of Otorhinolaryngology, Jikei University School of Medicine, Tokyo, Japan.
Tsunetaro MorinoDepartment of Otorhinolaryngology, Jikei University School of Medicine, Tokyo, Japan.
Yoshiyuki KasaiDepartment of Otorhinolaryngology, Jikei University School of Medicine, Tokyo, Japan.
Shun KikuchiDepartment of Otorhinolaryngology, Jikei University School of Medicine, Tokyo, Japan.
Manabu KomoriDepartment of Otorhinolaryngology, St. Marianna University, Kawasaki, Japan.
Masayuki YamatoInstitute of Advanced Biomedical Engineering and Science Tokyo Women's Medical University, Tokyo, Japan.
Hiromi KojimaDepartment of Otorhinolaryngology, Jikei University School of Medicine, Tokyo, Japan.
Jikei University School of Medicine · JPTokyo Women's Medical University · JPSt. Marianna University School of Medicine · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWe developed a new treatment method that combines tympanoplasty with transplantation of autologous cultured nasal mucosal epithelial cell sheets to regenerate the mucosa of patients with adhesive otitis media, which has been difficult to treat effectively. We verified whether this procedure could be performed safely and measured its therapeutic efficacy.

methodsAutologous nasal mucosal epithelial cell sheets were manufactured at a good manufacturing practice-compliant cell processing facility using autologous nasal mucosal tissue. We performed tympanoplasty and transplanted the cell sheets into the middle ear cavity in six patients with adhesive otitis media.

resultsThe manufactured autologous cultured epithelial cell sheets met the predetermined quality standards and were successfully transplanted safely in all cases. Computed tomography findings after cell sheet transplantation showed that aeration in the tympanic cavity was maintained or restored in five of the six patients (83.3%). Four of the six (66.7%) patients had postoperative air-bone gap within 20 dB, which is considered a postoperative success in tympanoplasty for chronic middle ear disease.

conclusionsThe results of this clinical study suggest that tympanoplasty with cell sheet transplantation can be used to treat adhesive otitis media by reliably preventing re-adhesion of the tympanic membrane.

Indexed as

AdhesionAdhesive otitis mediaCell sheetCell sheet transplantationMucosal regenerationTympanoplasty

Identifiers

PMID34805451
PMCPMC8571162
OpenAlexW3211114247

What OpenQuestion holds

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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.