Ozkan Burak, Dogan Cagatay, Can Gulce Ecem, Tansu Nejat, Erozencı Ahmet, Onal Bulent
Acıbadem Unıversıty, Faculty of Medıcıne, Department of Urology, Istanbul, Turkey.
Unıversıty of Istanbul, Cerrahpasa School of Medıcıne, Department of Urology, Istanbul, Turkey.
Cent European J Urol. 2015;68(3):358-64. doi: 10.5173/ceju.2015.611. Epub 2015 Oct 15.
The aim of our study was to determine the efficacy of ureteral stents for extracorporeal shock wave lithotripsy (SWL) treatment of pelvis renalis stones and to compare the results and complications in stented and non-stented patients.
Between 1995 and 2011, 1361 patients with pelvis renalis stones were treated with SWL. Patients were subdivided into three groups according to stone burden: ≤1 cm(2) (group 1; n = 514), 1.1 to 2 cm(2) (group 2; n = 530) and >2 cm(2) (group 3; n = 317). Each group was divided into subgroups of patients who did and did not undergo ureteral stent implantation before SWL treatment. The efficacy of treatment was evaluated by determining the effectiveness quotient (EQ). Statistical analysis was performed by chi-square, Fisher's exact and Mann-Whitney U tests.
Of the 514, 530 and 317 patients in groups 1, 2 and 3 respectively, 30 (6%), 44 (8%) and 104 (33%) patients underwent auxiliary stent implantation. Steinstrasse rates did not differ significantly between stented and non-stented patients in each group. The EQ was calculated as 62%, 33% and 70% respectively in non-stented, stented and totally for group 1. This ratio calculated as 58%, 25% and 63% for group 2 and 62%, 26% and 47% for group 3. Stone-free rates were significantly higher for non-stented than for stented patients in groups 2 and 3.
Stone free rates are significantly higher in non-stented than in stented patients with pelvis renalis stones >1 cm(2), whereas steinstrasse rates are not affected.
我们研究的目的是确定输尿管支架在体外冲击波碎石术（SWL）治疗肾盂结石中的疗效，并比较置入支架和未置入支架患者的治疗结果及并发症。
1995年至2011年间，1361例肾盂结石患者接受了SWL治疗。根据结石负荷将患者分为三组：≤1 cm²（第1组；n = 514）、1.1至2 cm²（第2组；n = 530）和>2 cm²（第3组；n = 317）。每组又分为SWL治疗前接受和未接受输尿管支架植入的亚组。通过确定有效率（EQ）评估治疗效果。采用卡方检验、Fisher精确检验和Mann-Whitney U检验进行统计学分析。
第1、2和3组分别有514、530和317例患者，其中30例（6%）、44例（8%）和104例（33%）患者接受了辅助支架植入。每组中置入支架和未置入支架患者的石街发生率差异无统计学意义。第1组未置入支架、置入支架和总体的EQ分别计算为62%、33%和70%。第2组该比例分别为58%、25%和63%，第3组为62%、26%和47%。第2组和第3组中，未置入支架患者的无石率显著高于置入支架患者。
肾盂结石>1 cm²的患者中，未置入支架患者的无石率显著高于置入支架患者，而石街发生率不受影响。
