Ductal ligation serves as a safe and effective surgical treatment option for patients with anterior drooling. The high success rate, low operative morbidity, and non-invasive nature of the procedure make it a favorable intervention. Due to the small and variable sample sizes of each intervention, an accurate comparison for efficacy and safety cannot be made between 2- and 4-duct ligations.
Fry et al. (Fri,) studied this question.