Analysis of the high risk factors of bladder calculi combined with benign prostatic hyperplasia
Guo Jinan1, Huang Xiangjiang1, Xiao Kefeng1, Jiang Hongtao1, Yang Jianggen1
1 Department of Urology, the Second Clinical Medical (Shenzhen People's Hospital), Jinan University, Shenzhen Urology Minimally Invasive Engineering Center, Shenzhen 518000, China
Abstract:Objective:To study the high risk factors that influence bladder calculi formation in patients with benign prostatic hyperplasia. Methods:We retrospectively reviewed the clinical data of 308 patients with benign prostatic hyperplasia combined with bladder calculi in our hospital during Jan. 2011 to Sep. 2014. Results:The overall incidence of bladder stone in 308 patients with BPH was 22.07%. There were 44 cases of calcium oxalate-containing stone (64.7%), and 31 cases of uric acid-containing stone (45.5%). The patients' age, TPV, TZV, IPP and the Qmax were significantly different between two groups. Conclusions:This study demonstrated that age, TPV, TZV, IPP and Qmax are high risk factors of the occurrence of bladder calculi in patients with benign prostatic hyperplasia.
[1] Papatsoris AG, Varkarakis I, Dellis A, et al. Bladder lithiasis: from open surgery to lithotripsy. Urol Res, 2006,34(3):163-167. [2] Jenkins DC, Charles IG, Thomsen LL, et al. Roles of nitric oxide in tumor growth. Proc Natl Acad Sci USA, 1995,92(10):4392-4396. [3] Tan YH, Foo KT. Intravesical prostatic protrusion predicts the outcome of a trial without catheter following acute urine retention. J Urol, 2003,170(6 Pt 1):2239-2241. [4] Philippou P, Moraitis K, Masood J, et al. The management of bladder lithiasis in the modern era of endourology. Urology, 2012,79(5):980-986. [5] Wein AC, Kavoussi LR, Novick AC, et al. Campbell-Walsh urology, 9th ed. Philadelphia: Saunders, 2007:2663-2673. [6] Huang T, Qi J, Yu Y, et al. Transitional Zone Index and Intravesical Prostatic Protrusion in Benign Prostatic Hyperplasia Patients: Correlations according to Treatment Received and Other Clinical Data. Korean J Urol, 2012,53(4):253-257. [7] Elbadawi A, Yalla SV, Resnick NM. Structural basis of geriatric voiding dysfunction. IV. Bladder outlet obstruction. J Urol, 1993,150(5 Pt 2):1657-1667. [8] Holm NR, Horn T, Smedts F, et al. Does ultrastructural morphology of human detrusor smooth muscle cells characterize acute urinary retention? J Urol, 2002,167(4):1705-1709. [9] Childs MA, Mynderse LA, Rangel LJ, et al. Pathogenesis of bladder calculi in the presence of urinary stasis. J Urol, 2013,189(4):1347-1351. [10] Alam M, Sugimura K, Okizuka H, et al. Comparison of MR imagingand urodynamic findings in benign prostatic hyperplasia. Radiat Med, 2000,18 (2):123-128.