Mannheim Peritonitis Index

Mannheim Peritonitis Index

A prognostic scoring system used to predict mortality in patients with peritonitis. Long-term survivors have an MPI score of about 20; non-survivors have a score of 33.
Risk factor—Score
• Malignancy—4.
• Pre-op duration of peritonitis—4.
• Age > 50—5.
• Female gender—5.
• Diffuse generalised peritonitis—6.
• Organ failure—7.
• Exudates
– Clear—0.
– Cloudy, purulent—6.
– Faecal—12.