Factors Associated With Postoperative Complications in Patients Who Underwent Parotidectomy: A Retrospective Study.

Objectives: This study aimed to determine the prevalence of complications after parotidectomy and identify factors associated with these complications. Methods: Data from patients who underwent parotidectomy for neoplasms in 2 tertiary centers were analyzed. Patient characteristics and postoperative complications were collected. Demographics, diabetes, and smoking status were evaluated using descriptive statistics. The prevalence of complications was determined and associations with smoking, surgical type, preoperative facial nerve involvement, final pathology, and Milan category were examined using chi-squared and correlation analyses. Results: Majority of patients were male (59.5%), falling within the age range of 31 to 50 years (42.7%). The most common complication was facial nerve weakness (23.6%), followed by seroma (19.1%), ear numbness (17.3%), and tumor recurrence (8.7%). Xerostomia demonstrated a correlation with smoking, while more invasive types of surgery showed associations with surgical site infection and tumor recurrence. Malignant disease on the final pathology and higher Milan category exhibited links with salivary fistula. No clear associations were found between preoperative facial nerve involvement and any of the complications. Age and body mass index (BMI) did not demonstrate significant correlations with complications. Conclusions: This study highlights the prevalence and associations of postparotidectomy complication. Facial nerve weakness was the most common followed by seroma and ear numbness. Smoking was correlated with xerostomia, while more invasive type of surgery was correlated with infection and recurrence. Age and BMI did not have associations. Personalized approaches and understanding factors for effective management are important. Further research is recommended to validate the outcome and understand the recovery from parotidectomy.