A Study of Facial Nerve Monitoring During Surgical Removal of the Parotid Gland for Superficial Benign Lesions


About this study

The purpose of this study is to determine the benefit to postoperative facial nerve function of using electromyography (EMG) based monitoring of facial nerve function during surgery to remove the parotid gland for superficial benign lesions.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria

  • ≥ 18 years
  • Treated at Mayo Clinic for primary, benign parotid lesions using superficial parotidectomy


Exclusion Criteria

  • Revision operations
  • Prior head and neck radiation
  • Prior head and neck surgery
  • Malignant parotid lesions
  • Patients taking steroids
  • Patients with diabetes
  • Pregnant patients 
    • A pregnancy test will be included in the pre-operative workup of all females of childbearing potential enrolled in the study 
  • Patients with preoperative facial nerve dysfunction 

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

Jeffrey Janus, M.D.

Closed for enrollment

More information


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