Subtotal functional sialoadenectomy vs four-duct ligation for the treatment of drooling in neurologically impaired children: Long-term follow-up.

Objectives: The best surgical option to treat drooling in neurodisabilities is still under debate. The aim of this study was to describe the technique of subtotal functional sialoadenectomy (SFS) (ie four-duct ligation (4-DL) together with bilateral sublingual gland excision) and its long-term outcomes, in comparison with 4-DL.

Design: Retrospective observational cohort study.

Setting: Unit of Pediatric Surgery of Bambino Gesù Children's Hospital (Rome).

Participants: Seventy-five patients surgically treated for drooling between 2002 and 2012, with at least five years of follow-up, divided into two groups: 4-DL group (19 patients) underwent four-duct ligation, and SFS group (56 patients) underwent subtotal functional sialoadenectomy.

Main Outcome Measures: Primary end points were the evaluation of drooling improvement after surgery (parameters: Drooling Severity and Frequency Scale, DSFS; no of bibs/day; no of shirts/day; no of pneumonia/year; use of antidrooling drugs) and the comparison between two different surgical techniques.

Results: Median age at surgery was 10 years (1-35). Long-term outcomes showed significant improvement in DSFS and in no of shirts/day in both groups. Significantly better results were found in the SFS group than in the 4-DL group as far as DSFS (P value .045), no of bibs/day (P value .041), no of shirts/day (P value .032) are concerned. Reoperation rate for recurrence was 42% in the 4-DL group and 0% in the SFS group (P value < .0001). Six patients (8%; 2 in the 4-DL group and 4 in the SFS group) experienced perioperative complications, while 4 patients (5%; 2 in the 4-DL group and 2 in the SFS group) recorded long-term complications, with no difference between groups neither need for surgical treatment. No surgery-related mortality was recorded.

Conclusions: In our experience, subtotal functional sialoadenectomy ensured significantly greater long-term effects than four-duct ligation for drooling treatment in neurologically impaired child, with equal complication rate.