Salivary gland surgery for control of chronic pulmonary aspiration in children with cerebral palsy

Abstract

To evaluate the outcome of surgical saliva reduction to decrease pulmonary aspiration in children with cerebral palsy and its repercussions in respiratory infection control. Twenty-nine children with neurological impairment and diagnosis of chronic pulmonary aspiration were submitted to bilateral submandibular gland excision and bilateral parotid duct ligation at the Association for the Welfare of Physically Handicapped Children, from December 2001 to December 2004. Postoperative frequency of lower respiratory tract infection, hospitalization rate due to pulmonary infection and airway secretion level after the surgery were compared to preoperative period. Twenty-nine children with cerebral palsy aged 18 months to 9 years were submitted to submandibular glands excision and parotid ducts ligation. All children had gastrostomy and no oral intake. There were no major complications; two children had reopening of one parotid duct. Frequency of lower respiratory tract infections, rate of hospitalization for treatment of pulmonary infections and level of airway secretion were statistically reduced. Preoperative mean rate of lower respiratory tract infection was 6.9/year; in postoperative period, rate was 2.4/year (p<0.001). Pneumonia hospitalization mean rate was 63.4 days/year preoperatively and 17.5 days/year postoperatively (p<0.001). There was also a significant improvement in the need for suctioning of upper airway secretion (mean 11 times/day in preoperative period and 3.1 times/day in the postoperative period; p<0.001). In children with cerebral palsy, surgical saliva reduction by submandibular glands excision and parotid ducts ligation is an effective and safe technique for frequency reduction of lower respiratory tract infection and level of airway secretion.