Mao et al reported a scoring system for predicting treatment failure in a patient with peritoneal dialysis-associated peritonitis (PDAP). This can help to identify a patient who may require more aggressive monitoring. The authors are from Meizhou People's Hospital in Guangdong, China.
Patient selection: peritoneal dialysis associated peritonitis (PDAD) with age >= 18 years
Parameters:
(1) serum urea in mmol/L
(2) serum CRP in mg/L
(3) serum BNP in pg/mL
(4) average residual urine (RU) volume in mL
(5) urea clearance rate
Parameter
Finding
Points
serum urea
<= 15.355 mmol/L
1
> 15.355 mmol/L
0
serum CRP
<= 103.925 mg/L
0
> 103.925 mg/L
1
serum BNP
<= 589.4 pg/mL
1
> 589.4 pg/mL
0
average residual volume
<= 375 mL
1
> 375 mL
0
urea clearance rate
<= 1.95
1
> 1.95
0
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 5
• A cutoff > 2.5 is associated with treatment failure
Performance:
• The area under the ROC curve is 0.90.
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