Pediatric Sialendoscopy for Recurrent Salivary Gland Swelling: Workup, Findings, and Outcomes

Introduction: Recurrent salivary gland swelling of the parotid and submandibular glands results in painful swelling in the pediatric population. There is no defined algorithm for workup and treatment of these disorders, resulting in wide heterogeneity and in some cases overuse of computed tomography (CT) imaging. Sialendoscopy (SE) is an interventional option for recurrent swelling of both glands; however, its effectiveness in the pediatric population is still being determined. Objectives: To assess preoperative imaging utilization and benefit in the workup of recurrent pediatric sialadenitis, intraoperative SE findings, and postoperative outcomes after intervention with SE. Methods: Case-series with a 5-year retrospective chart review on children undergoing SE for recurrent sialadenitis. Results: Forty-nine SE procedures were performed on 38 parotid glands (PG) and 11 submandibular glands (SMGs) in 29 children. CT imaging findings were useful for identifying a stone or stricture and guiding surgical management in 45.5% of SMGs versus 2.6% of PGs (P <.001). A stone was found in 45.5% of SMGs and none in PG (P <.001). SE intervention such as balloon dilation or stone removal was performed in 54.6% of SMGs and 5.3% of PGs (P <.001). 74% of parotid patients undergoing SE responded to 1 intervention with a cessation of recurrent gland swelling, while 26% required additional interventions. One hundred percent of SMG patients responded to first intervention. There was no improvement in the beneficial effect of SE with steroid injection (P =.897) regardless of steroid used (P =.082). Conclusion: CT findings were found to be low yield for recurrent parotid swelling, and ultrasound is a recommended first-line step for PG pathology. SE is a recommended first-line intervention for SMG and parotid sialadenitis as demonstrated by 100% and 74% response rate to initial SE, respectively.