Sialendoscopy-assisted Treatment for Radioiodine-induced Sialadenitis

Purpose: Chronic sialadenitis is a common complication of radioactive iodine for the treatment of thyroid disease. The aim of this study was to describe the authors' experience with interventional sialendoscopy for the management of radioiodine-induced sialadenitis.

Materials And Methods: Twelve patients with radioiodine-induced sialadenitis treated with sialendoscopy from January 2013 through December 2013 at the Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University were retrospectively reviewed. Age, gender, and time to development of radioiodine-induced sialadenitis were obtained from the hospital database. All patients were asked to undergo visual analog scale (VAS) and salivary gland scintigraphy (SGS) examinations before and 6 months after surgery. A paired t test was conducted, and a P value less than .05 was considered statistically significant.

Results: Twelve patients (15 parotid glands and 4 submandibular glands) successfully underwent interventional sialendoscopy under local anesthesia. Ductal stenosis was the most common feature identified by endoscopy. Among the 12 patients, swelling occurred in 91.7%. Compared with the preoperative score of 6, the mean VAS score 6 months after sialendoscopy was 3; 15 glands (78.9%) showed improved uptake and excretion by SGS. The postoperative VAS score was significantly lower than the preoperative VAS score (P < .05), and the postoperative SGS result was significantly higher than the preoperative SGS result (P < .05).

Conclusions: Interventional sialendoscopy could be an effective technique for the treatment of sialadenitis caused by radioactive iodine.