Surveillance endoscopy in pediatric tracheostomy: A systematic review

To systematically review the literature on the yield of surveillance airway endoscopy in pediatric patients with tracheostomies. A systematic search was performed according to PRISMA guidelines of the MEDLINE/Pubmed and Embase databases. Data were collected on the following outcomes of interest: abnormal airway findings in surveillance endoscopy performed in pediatric tracheostomy patients, frequency and nature of interventions performed during endoscopy, and predictive factors associated with abnormal airway findings. Seven studies were included in the review. The timing of endoscopy post-tracheostomy placement was variable and ranged from 1 to 24 months. All studies reported abnormal airway findings on initial endoscopic examination, with rates varying from 20 to 87%. Airway granulomas/granulation tissue was the most common finding, followed by airway stenosis and suprastomal collapse. Interventions performed to improve airway safety occurred in 18%–64% of patients undergoing surveillance endoscopy. The most commonly reported interventions were debridement of granulation tissue and dilation of subglottic stenosis. No endoscopy-related complications were reported across the studies. The presence of tracheostomy-related symptoms was the most consistently reported predictor of abnormal airway findings and airway interventions. Pediatric tracheostomy patients undergoing surveillance airway endoscopy have a high rate of abnormal airway findings and interventions. However, additional studies are needed before routine endoscopy can be recommended in asymptomatic patients.