Abstract
Urinary ascites results in pseudoazotemia due to urinary creatinine reabsorption across the peritoneum. We report a case of a pyeloplasty complicated by urine extravasation, in which the diagnosis was aided by discrepant findings of an elevated serum creatinine level but a stable cystatin C level. Cystatin C is a marker of renal function but is not typically excreted into the urine and therefore can be used to differentiate pseudoazotemia from true azotemia and is a better marker of renal function in the setting of known urinary ascites. These findings are relevant for patients with potential traumatic or nontraumatic sources of urine extravasation.
Original language | English (US) |
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Pages (from-to) | 918-920 |
Number of pages | 3 |
Journal | Urology |
Volume | 85 |
Issue number | 4 |
DOIs | |
State | Published - Apr 1 2015 |
Externally published | Yes |
ASJC Scopus subject areas
- Urology