Clinical use
Use this calculator for perioperative mortality and morbidity prediction (portsmouth possum) in thesurgery workflow. It is decision support and should be interpreted with the patient context, local protocols, and clinician judgment.
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Surgery
P-POSSUM Calculator
Perioperative mortality and morbidity prediction (Portsmouth POSSUM)
Calculate P-POSSUM
Interpretation
Gold standard UK preoperative risk tool. Physiological (12-88) + Operative (6-48) scores. Used for informed consent and surgical audit.
Required inputs
- Physiological Score
- Operative Score
Evidence and limitations
This page cites 1 published reference. Confirm units and inclusion criteria before applying the output; calculators do not replace assessment, escalation, or local policy.
References
- Prytherch DR et al. Br J Surg 1998;85:1217-1220
Frequently asked questions
What is the P-POSSUM?
P-POSSUM is a clinical calculator used for Perioperative mortality and morbidity prediction (Portsmouth POSSUM).
How do I interpret the P-POSSUM?
Gold standard UK preoperative risk tool. Physiological (12-88) + Operative (6-48) scores. Used for informed consent and surgical audit.
What inputs are required for the P-POSSUM?
Required inputs include Physiological Score, Operative Score.
What is the evidence behind the P-POSSUM?
The P-POSSUM page cites Prytherch DR et al. Br J Surg 1998;85:1217-1220.
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