The purpose of these pages is to provide surgeons with the ability to calculate a P-POSSUM score for their general surgical patients online to enable them to provide further information on risk in terms of morbidity and mortality. There is also a wealth of general information on risk prediction in surgery - this area of the site is constantly being updated and it is worth checking back on a regular basis.
Calculate a P-POSSUM Score
Choose a value in each category that matches your patient from the drop down lists in both the physiological and operative parameters tables below. Default values (the lowest score) are shown for each category. Simply submitting the form as it is without changing the values (i.e. a young fit patient having a minor operation) still gives a % risk for morbidity and mortality. This illustrates that even in the modified P-POSSUM formula used in this application still overestimates risk in low risk groups. The more 'risky' the procedure the more accurate is the predicted risk calculated below.