“…1,5,13 Comparative studies of PDT and OBT showed similar results regarding complications. 3,4,6,11,12,17,19,20 Two recent meta-analyses 21,22 showed similar rates of major periprocedural and long-term complications for both procedures. However, PDT was associated with a reduced incidence of wound infection (odds ratio = 0.28, 95% confidence interval, 0.16 to 0.49, P < .0005) when compared to surgical tracheostomy.…”