Outpatient versus observation/inpatient parotidectomy: patient factors and perioperative complications.

The objective of this manuscript is to review a single institution's experience with superficial or total parotidectomy in outpatient and observation/inpatient groups. All patients who underwent superficial or total parotidectomy between 2009 and 2015 were identified. Patients were excluded if they had undergone concurrent surgery such as neck dissection, had prior radiation treatment or surgery at the operative site. Main outcomes were perioperative complications in both groups. 215 consecutive patients were included in the study, 116 (54%) patients in the inpatient group and 99 (46%) in the outpatient group. Aside from a higher observed rate of cardiac disease in the outpatient group (24.2 vs. 11.2%, p = 0.014) and larger mean body mass index (BMI) in the inpatient group (32.448 vs. 30.034, p = 0.017), there were no significant differences for age, sex or smoking status. Average operative time differed between groups with 2 h 42 min for inpatients and 2 h 18 min for outpatients (p < 0.001). There were 26 complications in the inpatient group (22.4%, including two hematomas) and 8 in the outpatient group (8.1%). The rate of seroma/sialocele formation was significantly higher in the inpatient group at 15.5% (n = 18) compared with the outpatient group at 3% (n = 3, p = 0.001). Our study shows that parotidectomy, superficial or total, was performed safely as an outpatient procedure without significant increase in complications when compared to patients observed for at least one night after surgery.