Evaluation of the Surgery Outcome of Pleomorphic Adenoma of the Parotid Gland

Abstract

Background: Pleomorphic adenoma, accounting for 80% of all parotid benign tumors and associated with a high recurrence rate after surgery. Early diagnosis and effective treatment will contribute to reducing complications of surgery. Objective: Evaluation of surgical results of pleomorphic adenoma on facial paralysis and other complications. Materials and Methods: including 25 patients with pleomorphic adenoma who were operated at Hue University of Medicine and Pharmacy from January 2020 to December 2020 and evaluate complications after 1 week, 1 month, 3 months, and 6 months. Results: After surgery at 1 week, 1 month, 3 months, and 6 months, the rate of facial paralysis gradually decreased by 76%, 52%, 32%, 0%, respectively. After 6 months, 100% reaching grade I on the House-Brackmann scale. cervicofacial branches accounted for the highest rate (48%). Other common complications include numbness around the ear, hemorrhage, sialocele, salivary fistula. Nevertheless, no cases of tumor recurrence and Frey’s syndrome were recorded. Conclusion: Parotidectomy is an effective and safe treatment method of pleomorphic adenoma. Facial paralysis accounts for a high incidence, but it will fully recover after 6 months. Choosing the appropriate treatment method helps to minimize complications and recurrence after surgery for pleomorphic adenoma of the parotid gland. Key words: Pleomorphic Adenoma, Parotidectomy, Facial paralysis