Dandy Tanuwidjaja
Department of Urology, Faculty of Medicine/Padjadjaran University, Hasan Sadikin Hospital, Bandung.

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METABOLIC RISK FACTORS OF URINARY STONE DISEASE IN CHILDREN Tanuwidjaja, Dandy; Siregar, Safendra
Indonesian Journal of Urology Vol 19 No 1 (2012)
Publisher : Indonesian Urological Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32421/juri.v19i1.52

Abstract

Objective: To evaluate metabolic risk factor of urinary stone disease in children. Material & method: In this hospital-based preliminary study, children with urinary stone disease who underwent stone removal in Hasan Sadikin Hospital were included. Control group consisted children with other diseases, matched for age and BMI. Blood evaluation (uric acid, calcium and phosphate) and 24-hour urine evaluation (calcium, phosphate, sodium, magnesium, uric acid, acidity, and urine volume) were measured before the stone removal. Stone analysis was performed later. Data was analyzed using Kruskal Wallis and Spearman correlation test. Results: Eight subjects with urinary tract stone and 8 normal subjects were included to the study. This study included 4 (50%) subjects with renal stone, 3 (37,5%) subjects with bladder stone, and 1 (12,5%) subject with distal urethral stone. Stone analysis revealed 6 (75%) calcium oxalate, 1 (12,5%) calcium phosphate, and 1 (12,5%) struvite stone. There was no significant difference in blood calcium, phosphate, and uric acid between groups. 24 hours urinary calcium level was higher in subjects with stone disease (40,8 mg vs 10,6 mg, p=0,027). Urinary calcium-to-creatinine ratio was also higher in stone disease (0,23 vs 0,02 mg/mg creatinine, p=0,002). There was no significant difference of other urinary electrolites and uric acid level between groups. Conclusion: Twenty four hours urinary calcium level and urinary calcium-to-creatinine ratio is higher in children with urinary stone disease. Keywords: Urinary stone disease, children, metabolic risk factors.
THE EFFECT OF PREDNISONE ON SERTOLI CELL OF CONTRALATERAL TESTICULAR TORSION Tanuwidjaja, Dandy; Sugandi, Suwandi; Sihombing, Aaron Tigor Tigor; Yantisetiasti, Anglita; Hernowo, Betthy S.
Indonesian Journal of Urology Vol 19 No 2 (2012)
Publisher : Indonesian Urological Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32421/juri.v19i2.58

Abstract

Objective: To evaluate the effect of prednisone in unilateral testicular torsion on Sertoli cell quality of contralateral testis. Material & Method: Thirty Wistar rats were divided into three groups i.e. group A (sham procedure), group B (unilateral torsion + orchiectomy after 6 hours), and group C (unilateral torsion + orchiectomy after 24 hours). Group B and C were further divided into subgroup with and without Prednisone administration. Prednisone was given orally once a day an hour after torsion, continued till one month later. Orchiectomy of contralateral testis was performed one month later. Those testes were examined by a pathologist. Results: In group A, no abnormality on Sertoli cell quality was found. There is significant difference among groups in Sertoli cell quality (p = 0,01). Ischemic time is associated with Sertoli cell quality (2 rats with severe damage in group C and none in group B). In group B and C, prednisone administration inhibited Sertoli cell damage. Prednisone administration in 6 hours group gave better results than 24 hours group (3 rats vs 1 rat with good Sertoli cell quality). Conclusion: Sertoli cell in contralateral testis is significantly affected by unilateral testicular torsion. Prednisone inhibit Sertoli cells damage. Ischemic time affected Sertoli cell quality of contralateral testis and respond to prednisone.Keywords: Prednisone, unilateral testicular torsion, sertoli cell.