Evidence map›Paper›PMID 41430448›Full record

SynthesisEuropean archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery2026

Extracapsular dissection versus partial superficial parotidectomy: a systematic review and meta-analysis.

Yi-Chan Lee, Wan-Ni Lin, Yao-Te Tsai, Tsung-You Tsai, Tuan-Jen Fang, Shih-Chi Su, Cheng-Ming Luo, Rodney Cheng-En Hsieh, Li-Jen Hsin

Abstract readSystematic ReviewMeta-AnalysisComparative Study
PubMed Publisher
In one paragraph

Synthesis in European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 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

9 authors.

Yi-Chan LeeDepartment of Otolaryngology - Head and Neck Surgery, Chang Gung Memorial Hospital, No. 5 Fu-Hsing St. Kwei-Shan, Keelung, Taoyuan, Taiwan.
Wan-Ni LinDepartment of Otolaryngology - Head and Neck Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Yao-Te TsaiDepartment of Otolaryngology - Head and Neck Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan.
Tsung-You TsaiCollege of Medicine, Chang Gung University, Taoyuan, Taiwan.
Tuan-Jen FangDepartment of Otolaryngology - Head and Neck Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Shih-Chi SuWhole-Genome Research Core Laboratory of Human Diseases, Chang Gung Memorial Hospital, Keelung, Taiwan.
Cheng-Ming LuoDepartment of Otolaryngology - Head and Neck Surgery, Chang Gung Memorial Hospital, No. 5 Fu-Hsing St. Kwei-Shan, Keelung, Taoyuan, Taiwan.
Rodney Cheng-En HsiehDepartment of Radiation Oncology, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Li-Jen HsinDepartment of Otolaryngology - Head and Neck Surgery, Chang Gung Memorial Hospital, No. 5 Fu-Hsing St. Kwei-Shan, Keelung, Taoyuan, Taiwan. lijen.hsin@gmail.com.ORCID http://orcid.org/0000-0001-9201-0270

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo compare perioperative outcomes and surgical safety between extracapsular dissection (ECD) and partial superficial parotidectomy (PSP) for benign parotid tumors through a systematic review and meta-analysis.

methodsPubMed, Embase, and the Cochrane Library were searched for studies published up to March 2025. English-language studies that directly compared ECD and PSP in patients with benign parotid tumors were included. Data were extracted independently by two authors, and meta-analyses were conducted using a random-effects model. Outcomes included operative duration, drainage volume, hospital stay, tumor size, incidences of Frey syndrome, facial nerve (FN) injury (temporary and permanent), recurrence, as well as the rate of complete tumor excision.

resultsFourteen studies met the inclusion criteria. Compared with PSP, ECD was associated with shorter operative duration (mean difference [MD], - 15.42 min; 95% confidence interval [CI], - 23.47 to - 7.37), lower drainage volume (MD, - 31.32 mL; 95% CI, - 32.88 to - 29.76), shorter hospital stay (MD, - 0.54 days; 95% CI, - 0.78 to - 0.29), and reduced rates of both Frey syndrome (risk difference [RD], - 0.03; 95% CI, - 0.05 to - 0.00) and temporary FN injury (RD, - 0.12; 95% CI, - 0.20 to - 0.05). No significant differences were found in tumor size, recurrence, permanent FN injury, complete excision rate, or other complications.

conclusionECD and PSP demonstrate comparable surgical safety for benign parotid tumors. ECD offers certain perioperative advantages and may be a suitable option for appropriately selected patients. Further prospective studies are warranted to confirm these findings.

Indexed as

DissectionParotid GlandParotid NeoplasmsFacial Nerve InjuriesHumansLength of StayOperative TimePostoperative ComplicationsSweating, GustatoryExtracapsular dissectionParotid tumorPartial superficial parotidectomy

Identifiers

PMID41430448

What OpenQuestion holds

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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.