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Use of Perirectal Hyaluronic Acid Spacer Prior to Radiotherapy in a Pediatric Patient With Bladder Rhabdomyosarcoma:
Ricardo Arceo-Olaiz1, Edwin A Smith1, Claire Stokes2
1Pediatric Urology Department, Emory University School of Medicine, Sandy Springs, GA; Pediatric Urology Department, Children's Healthcare of Atlanta, Atlanta, GA.
Abstract:
Rhabdomyosarcoma (RMS) treatment involves surgery, chemotherapy, and radiotherapy. A radioprotective space between the bladder/prostate and rectum reduces postradiation complications, as reported in adult patients. Describe pediatric preradiotherapy perirectal hyaluronic acid (HA) spacer injection for bladder/prostate RMS. We present a case of a 17-month-old male with bladder/prostate RMS. Before radiotherapy, an HA spacer was injected peri-rectally. Under general anesthesia, a transrectal ultrasound was positioned and 1mL of HA spacer was injected into the perirectal space. No complications were reported at 6-month follow-up. This is the first report of pre-radiation therapy spacer injection for pediatric bladder/prostate RMS.

