title: Comparison of functional change in parotid gland after surgical excision of pleomorphic adenoma by two different types of parotidectomy.
abstract: OBJECTIVE
  To compare the functional changes in parotid gland after surgical excision of pleomorphic adenoma by partial superficial parotidectomy (PSP), or conventional superficial parotidectomy (CSP).
  
  
  METHODS
  A prospective study including 117 patients undergoing CSP or PSP was performed. The uptake rate (UR) and excretion fraction (EF) of the parotid gland were measured by salivary gland scintigraphy before the surgery, as well as at months 3, 6, and 12 after the surgery; ΔUR and ΔEF, defined as the UR and EF differences between the contralateral side and the operated side, were also calculated.
  
  
  RESULTS
  Either UR or EF of the operated side was lower than that in the contralateral side after surgery (P < .05). ΔEF and ΔUR values at months 6 and 12 were significantly smaller in the PSP group than those in the CSP group.
  
  
  CONCLUSIONS
  PSP is preferable for preservation of the functions of the parotid gland.
authors: Department of Head and Neck Surgery, Sichuan Cancer Hospital, Chengdu, China; Graduate School of Guangxi Medical University, Nanning, China.
authors: Hong
authors: H
authors: Liu
authors: Department of Head and Neck Surgery, Sichuan Cancer Hospital, Chengdu, China.
authors: Jiao
authors: J
authors: Pei
authors: Department of Head and Neck Surgery, Sichuan Cancer Hospital, Chengdu, China.
authors: Yuxin
authors: Y
authors: He
authors: Graduate School of Guangxi Medical University, Nanning, China.
authors: Xiaojiao
authors: X
authors: Lan
authors: Department of Head and Neck Surgery, Sichuan Cancer Hospital, Chengdu, China.
authors: Ronghao
authors: R
authors: Sun
authors: Guiyang Medical College, Guizhou, China.
authors: Tiehong
authors: T
authors: Deng
authors: Department of Head and Neck Surgery, Sichuan Cancer Hospital, Chengdu, China.
authors: Yiquan
authors: Y
authors: Xu
authors: Department of Head and Neck Surgery, Sichuan Cancer Hospital, Chengdu, China.
authors: Guiquan
authors: G
authors: Zhu
authors: Department of Head and Neck Surgery, Sichuan Cancer Hospital, Chengdu, China.
authors: Wei
authors: W
authors: Wang
authors: Department of Head and Neck Surgery, Sichuan Cancer Hospital, Chengdu, China.
authors: Yun
authors: Y
authors: Duan
authors: Guiyang Medical College, Guizhou, China.
authors: Hong
authors: H
authors: Ma
authors: Department of Head and Neck Surgery, Sichuan Cancer Hospital, Chengdu, China.
authors: Shaoxin
authors: S
authors: Wang
authors: Department of Head and Neck Surgery, Sichuan Cancer Hospital, Chengdu, China.
authors: Jichuan
authors: J
authors: Fan
authors: Department of Head and Neck Surgery, Sichuan Cancer Hospital, Chengdu, China. Electronic address: Lli_super@163.com.
authors: Chao
authors: C
authors: Li
mesh_terms: D008949:Adenoma, Pleomorphic / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010306:Parotid Gland / Q000503:physiopathology* / Q000601:surgery; D010307:Parotid Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D011446:Prospective Studies; D016896:Treatment Outcome