web analytics

Description

Lu et al reported a nomogram for predicting urinary tract infection in the 90 days after radical cystectomy with urinary diversion. This can help to identify a patient who be monitored more closely. The authors are from Southeast University Nanjing in China.


Patient selection: status post radical cystectomy with urinary diversion for bladder cancer

 

Parameters:

(1) type of urinary diversion

(2) Charlson comorbidity index (CCI)

(3) ureteroenteric stricture

(4) prognostic nutritional index (PNI) of Onodera et al, from 25 to 65

 

points for PNI =

= MAX(0,162.5 - (2.5 * (PNI)))

 

Parameter

Finding

Points

type of urinary diversion

continuous cutaneous diversion

0

 

orthotopic neobladder

19.8

 

ileal conduit

25

Charlson comorbidity

0 or 1

0

 

>= 2

13.9

stricture

no

0

 

yes

46.7

 

total score =

= SUM(points for all of the parameters)

 

Interpretation:

• minimum score: 0

• maximum score: 185.6

 

value of X =

= (0.0654 * (score)) - 5.522

 

probability of UTI within 90 days =

= 1 / (1 + EXP((-1) * X))

 

Performance:

• The area under the ROC curve is 0.86.


To read more or access our algorithms and calculators, please log in or register.