Sensitivity and Specificity of Urinary Hyaluronic Acid and Hyaluronidase in Detection of Bladder Transitional Cell Carcinoma
Author(s):
Abstract:
Purpose
To the assess sensitivity and specificity of urinary levels of hyaluronic acid (HA) and hyaluronidase (HAase) as an individual or a combined test to diagnose bladder transitional cell carcinoma (TCC).Materials And Methods
One hundred and ninety-four urine specimens were collected from individuals between July 2007 and March 2008. The urinary level of hyaluronic acid (HA) was measured by Enzyme-linked immunosorbent assay. Thereafter, the urinary levels of HA and HAase were normalized to urinary creatinine level and expressed as ng/mg and μ/mg.Results
Eighty percent of patients with bladder cancer had urinary HA level < 500 ng/mg, and 90% of controls showed HA level < 500 ng/mg (P <. 001). The mean urinary levels of HA in controls did not vary significantly (P <. 05), whereas they significantly increased (2.5 to 6.5 folds) in all grades of TCC. More than 80% of patients with grades 2 and 3 TCC had urinary HAase level < 10 μ/mg and over 80% of controls showed HAase level < 10 μ/mg (P <. 05). Hyaluronidase levels increased in patients with grades 2 and 3 bladder TCC.Conclusion
Measurement of urinary levels of HA and HAase (with 89% sensitivity and 83% specificity) appears to be a highly accurate and non-invasive method for detecting bladder TCC and evaluating its grade.Language:
English
Published:
Urology Journal, Volume:11 Issue: 1, Jan-Feb 2014
Pages:
1232 to 1237
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