Comparative Study Shows Efficacy of Fiber Laser Treatment for Pediatric Urinary Condition . BOSTON, June 23, 2022 — In a study examining endoscopic treatments for urinary stones in pediatric patients, researchers at Boston Children’s Hospital found that use of thulium fiber lasers may improve patient outcomes. The researchers compared results of laser lithotripsy performed using two types of laser systems: a low-power holmium:yttrium-aluminum-garnet (Ho:YAG) laser and a su...