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  • Title: Serum carbohydrate antigen 19-9 levels in patients with unilateral hydronephrosis due to urinary lithiasis.
    Author: Kutlu O, Celik O, Koksal IT, Yigit S, Danisman A.
    Journal: Minerva Urol Nefrol; 2012 Sep; 64(3):217-21. PubMed ID: 22971687.
    Abstract:
    AIM: We aimed to investigate that the association between serum carbohydrate antigen 19-9 (CA 19-9) levels and unilateral hydronephrosis due to urinary lithiasis in homogeneous groups who had no urinary tract infection and renal impairment. METHODS: A total of 50 patients with ureteral stone enrolled in this study prospectively. The patients were divided into two groups according to degree of hydronephrosis. Patients without hydronephrosis were taken into Group I and who had hydronephrosis were taken into Group II. All patients were underwent treatment of shock wave lithotripsy (SWL). Serum CA 19-9 was measured using immunassay method pre-treatment of SWL. After complete stone clearence and recovery of hydronephrosis in all patients, patiens were re-evaluated and CA 19-9 levels were measured. RESULTS: There were no significant differences for age, gender, body mass index, stone volume, shock wave number, number of SWL seasons, and serum creatinin between the groups (P>0.05). Pre-SWL serum mean Ca 19-9 levels were 14.82±14.64 U/mL. in Group I and 13.89±13.03 U/mL. in Group II (P=0.8686). After complete stone clearance and recovery of hydronephosis with SWL, the mean CA 19-9 values were measured as 14.14±10.67 U/mL. in Group II and there were not found significant change as compared pre-SWL values for Group II (P=0.7334). CONCLUSION: The relationship between CA 19-9 values and hydronephrosis was not found to be statistically meaningful on the contrary to previous reports and it does not appear as a useful parameter to predict of urinary obstruction non-invasively.
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