title: Prevalence and risk factors of sialocele formation after partial superficial parotidectomy: A multi-institutional analysis of 357 consecutive patients.
abstract: The purpose of this study was to identify the prevalence of sialoceles and the risk factors associated with their formation after parotidectomy.
  
  
  
  We performed a retrospective analysis of the data from consecutive patients who underwent partial superficial parotidectomy of parotid tumors. Demographic data, preoperative imaging results, operative variables, including tumor type, incision type, tumor size, and method of parenchymal disruption were assessed.
  
  
  
  Twenty-three of 357 patients (6.4%) undergoing partial superficial parotidectomy developed sialoceles during the postoperative period. Sialoceles occurred more often in patients who had tumors in the anterior portion of the parotid gland. Multivariate analysis showed that an anterior tumor location was a significant risk factor for sialocele formation.
  
  
  
  The incidence of sialocele development was 6.4% in patients undergoing partial superficial parotidectomy. An anterior tumor location may increase the risk of sialocele formation. © 2015 Wiley Periodicals, Inc. Head Neck 38: E941-E944, 2016.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Kyung Hee University, Seoul, Korea.
authors.forename: Young Chan
authors.initials: YC
authors.lastname: Lee
authors.affiliation: Department of Otolaryngology, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea.
authors.forename: Gi Cheol
authors.initials: GC
authors.lastname: Park
authors.affiliation: Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyung Hee University, Seoul, Korea.
authors.forename: Jung-Woo
authors.initials: JW
authors.lastname: Lee
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Kyung Hee University, Seoul, Korea.
authors.forename: Young Gyu
authors.initials: YG
authors.lastname: Eun
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Veterans Health Service Medical Center, Seoul, Korea.
authors.forename: Seung Woo
authors.initials: SW
authors.lastname: Kim
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010306:Parotid Gland / Q000601:surgery; D010307:Parotid Neoplasms / Q000601:surgery*; D011183:Postoperative Complications / Q000453:epidemiology*; D015995:Prevalence; D012189:Retrospective Studies; D012307:Risk Factors
keywords: complication; parotidectomy; prevalence; risk factor; sialocele