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Related Experiment Video

Updated: Apr 11, 2026

Standardization of Basket Use in Sialendoscopy: A Ten-Year Retrospective Study
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Risk factors for sialocele after parotidectomy.

Chia-Hsien Wu1, Hsueh-An Sun, Heng-Jui Hsu

  • 1Department of Otolaryngology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC.

Journal of the Chinese Medical Association : JCMA
|April 10, 2026
PubMed
Summary

Post-parotidectomy sialoceles are linked to betel nut use, prior stroke, and early drain removal. Modifying perioperative care, like delaying drain removal, may reduce sialocele risk after parotid surgery.

Keywords:
Parotid tumorParotidectomySalivary gland tumorSialocele

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Area of Science:

  • Otolaryngology
  • Head and Neck Surgery
  • Surgical Oncology

Background:

  • Parotidectomy for parotid tumors can lead to sialocele formation, a post-surgical complication with variable reported incidence.
  • The exact causes of sialocele formation after parotidectomy remain unclear, necessitating research into predictive factors.

Purpose of the Study:

  • To identify independent predictors of postoperative sialocele formation following parotidectomy.
  • To inform targeted preventive strategies for reducing sialocele incidence.

Main Methods:

  • A retrospective cohort study involving 597 patients undergoing parotidectomy between 2014 and 2020.
  • Multivariable logistic regression analysis was employed to identify independent predictors of sialocele.
  • Data collected included demographics, comorbidities, lifestyle, operative details, and postoperative care.

Main Results:

  • Sialocele developed in 9.0% (54/597) of patients.
  • Significant independent predictors identified were betel nut use (aOR=2.37), history of cerebrovascular accident (aOR=4.10), early drain removal (<3 days, aOR=1.89), and mucoepidermoid carcinoma diagnosis (aOR=4.18).
  • Tumor size and operative method were not significantly associated with sialocele formation.

Conclusions:

  • Betel nut use, history of stroke, early drain removal, and malignant parotid tumors are key risk factors for sialocele post-parotidectomy.
  • Delaying surgical drain removal may be a viable strategy to mitigate sialocele risk.
  • Further prospective studies are recommended to validate these retrospective findings.