Evidence map›Paper›PMID 41659946›Full record

ArticleClinical case reports2026

A Case of Factor XIII Deficiency Identified by Recurrent Postoperative Bleeding After Tonsillectomy.

Takanobu Teramura, Akihiro Sakai, Masashi Hamada, Koichiro Wasano, Ai Yamamoto, Hikaru Yamamoto, Kenji Okami

Abstract read
In one paragraph

Article in Clinical case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Article
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.

Takanobu TeramuraDepartment of Otolaryngology, Head and Neck Surgery Tokai University, School of Medicine Isehara Japan.ORCID https://orcid.org/0009-0009-9891-6837
Akihiro SakaiDepartment of Otolaryngology, Head and Neck Surgery Tokai University, School of Medicine Isehara Japan.
Masashi HamadaDepartment of Otolaryngology, Head and Neck Surgery Tokai University, School of Medicine Isehara Japan.
Koichiro WasanoDepartment of Otolaryngology, Head and Neck Surgery Tokai University, School of Medicine Isehara Japan.
Ai YamamotoDepartment of Otolaryngology, Head and Neck Surgery Tokai University, School of Medicine Isehara Japan.
Hikaru YamamotoDepartment of Otolaryngology, Head and Neck Surgery Tokai University, School of Medicine Isehara Japan.
Kenji OkamiDepartment of Otolaryngology, Head and Neck Surgery Tokai University, School of Medicine Isehara Japan.ORCID https://orcid.org/0000-0003-4228-3347

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Postoperative bleeding is a well-known complication of tonsillectomy. Although inadequate hemostasis and vascular injury are common causes, occult coagulation disorders may also contribute. Factor XIII deficiency is an extremely rare condition that is particularly difficult to detect preoperatively because PT and APTT typically remain normal. A 27-year-old man underwent bilateral tonsillectomy for a recurrent peritonsillar abscess. Despite normal coagulation screening, the patient developed repeated postoperative hemorrhages requiring surgical management. Further evaluation revealed reduced Factor XIII activity (36%). After Factor XIII concentrate administration, bleeding ceased, and the postoperative course stabilized. Factor XIII deficiency should be considered in patients with recurrent postoperative bleeding despite normal routine coagulation tests. Early recognition and timely replacement therapy may prevent severe complications.

Indexed as

factor XIII deficiencynormal PT and APTToccult coagulation disorderpostoperative bleedingrecurrent hemorrhagetonsillectomy

Identifiers

PMID41659946
PMCPMC12881190

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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.