Partial superficial parotidectomy versus conventional superficial parotidectomy for benign parotid tumors: a controlled randomized study

ABSTRACT

Background:  Different techniques of parotidectomy are used for management of benign parotid tumors. The present study was conducted to compare the safety and the oncosurgical adequacy of two different techniques of parotidectomy; namely, partial superficial parotidectomy (PSP) and conventional superficial parotidectomy (SP) for the management of benign parotid gland tumors.

Patients and Methods: This prospective controlled randomized study was conducted between August 2012 and September 2014 at the Department of Surgery, Faculty of Medicine, Alexandria University, Egypt. Patients were allocated in 2 groups (20 patients each), Group I for whom conventional SP was performed and Group II for whom PSP was performed. Both techniques were compared regarding operative and post-operative data and complications. Patients were followed-up at regular intervals for one year.

Results: Patients in both groups (20 each) were comparable regarding the demographic data, pre-operative clinical criteria and imaging features. The mean operative time was significantly shorter in the PSP group (t=3.478, p=0.001) and the estimated amount of intra-operative blood loss was also significantly less in the PSP group (t=2.560, p=0.014) as compared to SP group. There was no significant difference between both groups regarding intra-operative and post-operative complications. There was no tumor recurrence at one year post-operatively in both groups.  

Conclusions: Based on the data presented, it may be concluded that PSP is an adequate and safe procedure for the treatment of benign parotid tumors located in the superficial lobe. With PSP there is no increase in post-operative morbidity. The main advantage of PSP is the significant reduction of operative time and blood loss.

Keywords: Parotid tumors, partial superficial parotidectomy, facial nerve injury.

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