Evidence map›Paper›PMID 42802856›Full record

ArticleLaryngoscope investigative otolaryngology2026

The Impact of Surgical Technique on Post-Tonsillectomy Hemorrhage-A Registry-Based Cohort Study.

Sverre Morten Zahl, Vegard Bugten, Tor Åge Myklebust, Anker Stubberud

Abstract read
In one paragraph

Article in Laryngoscope investigative otolaryngology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0cells of the map it votes in
0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Sverre Morten ZahlDepartment of Otolaryngology Ålesund Hospital Ålesund Norway.ORCID https://orcid.org/0000-0003-3303-6977
Vegard BugtenDepartment of Otolaryngology, Head and Neck Surgery St. Olavs Hospital Trondheim Norway.
Tor Åge MyklebustDepartment of Research and Innovation Møre og Romsdal Hospital Trust Ålesund Norway.
Anker StubberudDepartment of Otolaryngology Ålesund Hospital Ålesund Norway.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: The objective was to estimate the impact of surgical technique on the risk of post-tonsillectomy hemorrhage (PTH). Methods: This was a registry-based cohort study between 2017 and 2025, covering all tonsillectomies (excluding tonsillotomies) in Norway during the study period. The primary exposure variable was surgical technique, divided into three groups: cold (non-thermal technique for both dissection and hemostasis), cold + warm (thermal technique for hemostasis), and warm (thermal technique for both dissection and hemostasis). The effect of surgical technique on risk of PTH was analyzed using logistic regression, adjusting for confounding factors. Absolute risks and numbers needed to harm were also calculated. Results: A total of 25,953 patients were included (16,318 females [62.9%], median [IQR] age 20 [13] years). PTH was reported in 1946 patients (7.5%). Cold surgical technique was used in 3348 patients (12.9%), combined cold + warm technique was used in 16,284 patients (62.7%), and warm technique was used in 6321 patients (24.4%). Use of partly or fully warm technique was significantly associated with PTH compared to a purely cold technique (cold + warm: OR 2.4, 95% CI 1.9-3.1; warm: OR 3.4, 95% CI 2.5-4.6). The absolute increase in risk of PTH was 4.5% (cold + warm) and 7.5% (warm) compared to the cold technique, with corresponding numbers needed to harm of 22 and 13. The increased risk with warm technique was more pronounced for adolescents and adults compared to children. Conclusion: This population-based cohort study confirms that surgical technique is associated with PTH, with a significantly higher risk of PTH when using partially or fully warm technique compared to cold technique. Based on the cumulative evidence, it may be appropriate to raise the question whether one should recommend that tonsillectomies be performed with cold surgical technique, especially in adolescents and adults. Level of Evidence: 3.

Indexed as

postoperative bleedingpost‐tonsillectomy hemorrhageregistertonsillectomy

Identifiers

PMID42802856
PMCPMC13616187

What OpenQuestion holds

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Registered trials

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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.