Enema for Hirschsprung disease

  • Patient preparation: none
  • Contrast used: barium or high osmolar water soluble to make enema therapeutic as well as diagnostic, dilute contrast using 1 part contrast : 2 parts sodium chloride if < 1 year old or 2 parts tap water if > 1 year old
  • Technique: short enema tip if possible to help look for ultrashort Hirschsprung disease, tape tip in securely, start contrast with patient in a lateral position, turn the patient then to supine and then to prone in order to opacify the entire colon with contrast and reflux the terminal ileum
  • Images to obtain:
    — Scout – AP abdomen and lateral rectum
    — Lateral image of rectum once it is distended with contrast
    — Images of any transition zone
    — AP abdomen and lateral rectum once entire colon is opacified
  • Looking for: transition zone
  • Post procedure tasks: none