[Barium peritonitis: experimental study using barium sulfate and radioactive barium]

Area of Science:

• Medical Imaging Complications
• Toxicology
• Pathology

Context:

• Barium peritonitis is a severe complication following barium enema examinations, often leading to high mortality rates.
• Previous studies have focused on the complications of barium leakage into the peritoneum.

Purpose:

• To investigate the toxicity of barium when directly injected into the peritoneum.
• To evaluate the extraperitoneal distribution and effects of barium.
• To compare barium's effects with those of talcum, another agent causing peritoneal reactions.

Summary:

• Barium and radioactive 133Ba were injected into the peritoneum of 68 rats, avoiding colonic damage.
• Results indicate barium is not inherently toxic and induces granuloma formation, comparable to talcum.
• A specific tropism for lymphatic tissues was observed with barium administration.

Impact:

• Barium itself is not toxic when introduced into the peritoneum.
• Understanding barium's behavior in the peritoneum can inform risk assessment for imaging procedures.
• The findings suggest barium's potential to induce granulomatous inflammation, particularly affecting lymphatic tissues.