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        find Keyword "Ureter" 18 results
        • Efficacy and safety of doxazosin for ureterolithiasis: a meta-analysis

          ObjectivesTo systematically review the efficacy and safety of doxazosin for ureterolithiasis.MethodsPubMed, EMbase, Web of Science, The Cochrane Library and CNKI databases were electronically searched to collect randomized controlled trials (RCTs) of comparing doxazosin with conservative treatment or tamsulosin for ureterolithiasis from inception to October, 2018. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies, then, RevMan 5.3 software was used to perform meta-analysis.ResultsA total of 15 RCTs involving 1 062 patients were included. The results of meta-analysis showed that: compared with conservative treatment, doxazosin significantly facilitated ureteral stone expulsion (RR=1.62, 95%CI 1.45 to 1.81, P<0.000 01). No statistical significant difference was found in stone-free rate (RR=0.96, 95%CI 0.83 to 1.11, P=0.57), stone expulsion time (SMD=?0.17, 95%CI ?0.52 to 0.19, P=0.35) or pain episode frequency (SMD=0.21, 95%CI ?0.15 to 0.56, P=0.25) between doxazosin and tamsulosin. Treatment-associated serious side effects were rarely reported.ConclusionCurrent evidence shows that doxazosin is an efficient and safe medical expulsion agent for ureterolithiasis management. Due to limited quality and quantity of the included studies, more high quality studies are required to verify above conclusions.

          Release date:2019-07-18 10:28 Export PDF Favorites Scan
        • Efficacy and Safety of Laparoscopic Pyeloplasty versus Open Pyeloplasty for Ureterpelvic Junction Obstruction: A Systematic Review

          ObjectiveTo systematically review the efficacy and safety of laparoscopic pyeloplasty (LP) versus open pyeloplasty (OP) for patients with ureterpelvic junction obstruction (UPJO). MethodsWe electronically searched databases including PubMed, The Cochrane Library (Issue 11, 2015), Sciverse, VIP, WanFang Data and CNKI from inception to Dec., 2015, to collect randomized controlled trials (RCTs) and non-randomized clinical controlled trials (CCTs) about LP versus OP for UPJO patients. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies. Then, meta-analysis was performed using RevMan 5.3 software. ResultsA total of 38 studies including 8 RCTs and 30 CCTs were included. The results of meta-analysis based on RCTs showed that, there were no significant differences in successful operation rate (OR=0.50, 95%CI 0.20 to 1.24, P=0.13) and the incidence of postoperative complications (OR=1.19, 95%CI 0.61 to 2.31, P=0.62) between the OP group and the LP group; The operation time of the OP group was shorter than that of the LP group (MD=62.07, 95%CI 3.94 to 120.19, P=0.04), but this difference was not found in subgroup analysis of retroperitoneal approach (MD=49.99, 95%CI -23.69 to 123.67, P=0.18); The hospital stay of the LP group was shorter than that of the OP group (MD=-3.96, 95%CI -4.92 to -2.99, P<0.0001). The results of meta-analysis based on CCTs showed that, there was no significant difference in successful operation rate between two groups (OR=1.34, 95%CI 0.84 to 2.16, P=0.22), and similar results were found in subgroup analysis of transperitoneal or retroperitoneal approaches; The incidence of postoperative complications of the LP group was shorter than that of the OP group (OR=0.51, 95%CI 0.37 to 0.69, P<0.0001); The hospital stay of the LP group was shorter than that of the OP group (MD=-3.87, 95%CI -4.90 to -2.83, P<0.00001) and similar result was found in subgroup analysis of transperitoneal approach (MD=-4.08, 95%CI -5.21 to -2.95, P<0.0001); There was no significant difference between two groups in operation time (MD=24.15, 95%CI -7.56 to 55.87, P=0.14). ConclusionCurrent evidence shows that, the successful operation rate between LP and OP operations is similar, but the LP operation has less incidence of postoperative complication and shorter hospital stay. Due to limited quality of the included studies, the above conclusion needs more high quality studies to verify.

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        • Retroperitoneal laparoscopic dismembered pyeloplasty for ureteropelvic junction obstruction

          Objective To investigate the clinical effect of retroperitoneal laparoscopic dismembered pyeloplasty on ureteropelvic junction obstruction (UPJO). Methods From November 2010 to September 2015, a total of 28 cases (21 males and 7 females) with ureteropelvic junction obstruction (UPJO) underwent retroperitoneal laparoscopic dismembered pyeloplasty. All the 28 patients had a previous history of different degrees of lumbar pain, which was confirmed as typical UPJO by imaging examination. Operation method: following complete renal pelvis and upper ureter isolation, the renal pelvis was clipped into a trumpet-shaped mouth, 1/3 of the upper renal pelvis was temporarily kept without section. In the inferior margin of renal pelvis, longitudinal cut procedure was operated in the ureter and across the stenotic segment in about 1–2 cm; and then, anastomosis of the ureter and the renal pelvis at the lowest was performed, to maintain the continuity of the renal pelvis and ureter. Subsequently, the stenosed segment of ureter and the dilatant renal pelvis were removed, the posterior ureteropelvic anastomosis was made with an interrupted suture, and antegrade stenting of double J tube was further performed, followed by a continuous suture of the anterior wall. Results The procedure was successfully accomplished in all patients whithout conversion to open surgery. The operating time was 90-240 minutes with the median time of 160 minutes. The estimated blood loss was 20-70 mL with the median of 50 mL. No severe surgical complication occurred in perioperative period. The 3-24 -month follow up showed that symptoms of lumbar pain were relieved or disappeared in all the incorporated patients. Postoperative radiographic examination showed no stomal stenosis at the ureteropelvic junction, and the hydronephrosis was alleviated. Conclusions Retroperitoneal laparoscopic dismembered pyeloplasty for UPJO is an effective, safe, and minimally invasive surgical technique. The key to the success of the operation is to the accurate renal pelvis clipping, tension- and torsion-free anastomosis of the lowest position of the renal pelvis and the ureter, and the reconstruction of a new funnel-shaped ureteropelvic junction.

          Release date:2017-06-22 02:01 Export PDF Favorites Scan
        • Comparison of health economical evaluation between ambulatory surgery and special in-hospital surgery mode for flexible ureteroscopic holmium laser lithotriphy for ureteral calculi

          Objective To evaluate the ambulatory surgery mode by using health economical mothods and provide reference for optimization and decision of surgical operation mode. Methods The patients who underwent unilateral flexible ureteroscopic holmium laser lithotriphy for ureteral calculi in Xiangya Hospital, Central South University between January 1st to December 31th, 2015 were selected in this study, including 59 with ambulatory surgery mode (the ambulatory group) and 65 with special in-hospital surgery mode (the special group). The differences in average bed occupancy time, cost, therapeutic effect, and satisfaction between the two operation modes were compared. Results The average bed occupancy time in the ambulatory group and the special group was (1.03±0.18) and (6.35±0.74) days, respectively, and the difference was statistically significant (P<0.05). The patients in both groups were followed up for one month after the operation, and the incidence of complications was 6.8% (4/59) in the ambulatory group and 6.2% (4/65) in the special group, without significant difference (P>0.05). The satisfaction score in the ambulatory group and the special group was 96.48±0.23vs. 96.53±0.18 without significant difference (P>0.05). The differences in direct medical cost [(17 738.28±1 027.85)vs. (21 307.67±554.41) yuan], direct non-medical cost [(103.39±18.25) vs. (630.76±78.90) yuan], indirect cost[ (266.93±47.12) vs. (1 640.44±190.55) yuan], and total cost [(18 128.10±1 037.76) vs. (23 558.29±619.20) yuan] between the ambulatory group and the special group were all statistically significant (P<0.05). The treatment effect index in the ambulatory group and the special group was 0.96 and 1.05, respectively; the cost-effect ratio was 18 883.44 and 22 436.47, respectively. Sensitivity analysis showed that the adjusted cost-effect ratio in the ambulatory group (16 629.64) was still lower than that in the special group (20 534.91). Conclusions The cost-effect ratio of ambulatory surgery mode is superior than that of special in-hospital surgery mode, and there is no obvious difference in patients satisfaction between the two modes. Ambulatory surgery mode can be recommended to patients who meet the indications of day surgery.

          Release date:2017-11-24 10:58 Export PDF Favorites Scan
        • FOLLOW-UP EVALUATION OF A NEW URETERAL ANASTOMOSIS TECHNIQUE IN RENAL TRANSPLANTATION

          Objective To compare the therapeutic effect of new “One-Stitch” ureterovesical anastomosis to that of the classic Lich-Gregoir method. Methods From January 2002 to December 2004, 445 patients suffering from uremia due to chronic nephritis were treated with renal transplantation. Among them, 121 patients were operated with our new modified ureteroneocystostomy technique (the new One-Stitch group), and 324 patients were operated with Lich-Gregoir technique (the Lich-Gregoir group). In the new One-Stitch group, there were 79 males and 42 females, aged 20-62 years (35.7 years on average). The course of the disease was 2-11 years (2.7 years on average). In the Lich-Gregoir group, there were 211 males and 113 females, aged 19-65 years (33.9 years on average). The disease course was 1-14 years (2.3 years on average). There was no significant difference between the two groups in age, proportion of genders, primary diseases and course of the disease (P gt; 0.05). The operative time, the ureteral compl ications and non-ureteral compl ications were compared between the two groups after the renal transplantation. Results The operative time for the new One-Stitch and Lich-Gregoir techniques was (8.7 ± 1.1) minutes and (22.4 ± 5.1) minutes, indicating the difference was significant (P lt; 0.05). All recipients were followed up for 3-5 years. In the new One-Stitch group, there were 5 patients with leakage of urine, 15 with gross hematuria, 4 with ureteral obstruction and 28 with urinary system infection. Symptomatic vesicoureteral reflux and stone formation were not observed in this group. In the Lich-Gregoir group, there were 17 patients with leakage of urine, 12 with gross hematuria, 13 with ureteral obstruction, 86 with urinary system infection, 6 with symptomatic vesicoureteral reflux and 2 with stones. In the new One-Stitch group, the incidence rate of compl ications of gross hematuria was 12.4%, which was significantly different from 3.7% in the Lich-Gregoir group (P lt; 0.05). The incidence rates of ureteral compl ications in the Lich-Gregoir and the new One-Stitch groups were 19.8% and 15.4%, respectively. The difference was not significant (P gt; 0.05). There was no significant difference between the two groupsin incidence rate of urinary system infection, delayed recovery of kidney function after kidney transplantation and rejectionreaction (P gt; 0.05). Conclusion The new One-Stitch group has no significant difference in ureteral compl ications ompared with the Lich-Gregoir group, and has become a preferential ureterovesical reimplantation technique because of its simple and has convenient operation.

          Release date:2016-09-01 09:16 Export PDF Favorites Scan
        • MODIFIED Politano-Leadbetter REIMPLANTATION FOR TREATMENT OF CONGENITAL MALFORMATION OF VESICOURETERAL JUNCTION IN CHILDREN

          ObjectiveTo explore the effectiveness of modified Politano-Leadbetter reimplantation for the treatment of congenital malformation of the vesicoureteral junction in children. MethodsA retrospective analysis was made on the clinical data of 53 patients with congenital malformation of the vesicoureteral junction treated with modified Politano-Leadbetter reimplantation between June 2000 and October 2014. Of 53 cases, there were 24 boys and 29 girls, aged from 8 months to 7 years (mean, 2.1 years); 23 had congenital vesicoureteral junction obstruction (14 left, 5 right, and 4 bilateral), and 30 had vesicoureteral reflux (12 unilateral, 18 bilateral), which were verified by voiding cystourethrography. The disease duration was from 1 month to 1 year (mean, 5 months). ResultsAll of the patients underwent modified Politano-Leadbetter reimplantation successfully. The mean operation time was 74 minutes (range, 65-85 minutes) for unilateral cases and 105 minutes (range, 98-130 minutes) for bilateral cases. There was no dysuria, infection of incision, or incision dehiscence after urinary catheter removal. The follow-up time was 6 months to 14 years (median, 28 months); all patients were free from complications of fistula, vesicoureteral reflux, vesicoureteral junction obstruction, or hypertension. The new ureteral orifices had good appearance at 1 month after operation. Urologic ultrasound showed that hydronephrosis relieved at 3 months after operation. Urinary tract infection rate was 13.2% (7/53) during 6 months after operation, which was cured by antibiotics. Voiding cystourethrography showed no vesicoureteral reflux in 32 cases at 6 months after operation. ConclusionThe modified Politano-Leadbetter reimplantation simplifies the operation course, which has the longitudinal ureter after operation and is similar to physiological state. It is a safe and effective option for congenital malformation of vesicoureteral junction in children with few complications, especially for patients with unilateral megaloureter.

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        • Necessity and Safety of Ureteral Stenting after Ureteroscopic Lithotripsy in Treatment of Ureteral Calculi: A Systematic Review

          Objective  To assess the necessity and safety of ureteral stenting after ureteroscopic lithotripsy in treatment of middle and distal ureteral calculi. Methods We electronically searched MEDLINE, EMbase, Cochrane Library, CBM, VIP and CNKI to collect randomized controlled trials (RCTs) involving men with or without ureteral stenting after ureteroscopic lithotripsy from 2000 to March 2010. The quality of included trials was assessed. Data were extracted and analyzed with RevMan5.0 software. Results Six RCTs involving 543 patients were identified. The results of meta-analysis showed that: a) There was no statistical difference between two groups in stone clearance rate (RR=0.45, 95% CI 0.98 to 1.01, P=0.15), dysuria rate (RR=1.35, 95% CI 0.99 to 1.84, P=0.06), and hematuria rate (RR=2.12, 95% CI 1.00 to 4.49, P=0.05); b) There was statistical difference between two groups in frequent micturition rate (RR=2.17, 95% CI 1.13 to 4.17, P=0.02), the mean visual analog score 3 days postoperatively (WMD=0.94, 95% CI 0.47 to 1.42, P=0.000?1), and the operation time (WMD=3.57, 95% CI 1.40 to 5.72, P=0.001). Without postoperative ureteral stenting can shorten the operation time, decrease the irritation signs of bladder, and can improve quality of postoperative life without influence on stone clearance. Couclusions The routine ureteral stenting after ureteroscopic lithotripsy may be not necessary in order to keep patients from unsafety. More reasonable randomized double blind controlled trails with large sample are required to provide proofs with high quality because the methodology quality of included studies is lower.

          Release date:2016-09-07 11:24 Export PDF Favorites Scan
        • The Value of Ureteral Stent Placement before Extracorporeal Shock Wave Lithotripsy: A Meta-analysis

          Objective To evaluate the value of Ureteral Stent Placement before Extracorporeal Shock Wave Lithotripsy (ESWL). Methods We searched the Cochrane Central Register of Controlled Trials (Issue 4, 2010), MEDLINE (OVID 1950 to April 2010), EMbase (1979 to April 2010), CBM (1978 to April 2010), CNKI (1979 to April 2010), and VIP (1989 to April 2010), and manually searched journals as well. All the randomized controlled trials (RCTs) of treating ureteral stone with ESWL after stent placement were included. We evaluated the risk of the bias of the included RCTs according to the Cochrane Handbook for Systematic Reviews of Interventions Version 5.0.1. The Cochrane Collaboration’s software RevMan 5.0 was used for meta-analysis. Results Three RCTs with C-level evidence involving 319 ureteral stone patients were identified. The results of meta-analyses showed that: a) Effect of treatment: The ureteral stent placement before ESWL did not take better effects in aspects of the complete clearance rate (WMD= 1.10, 95%CI 0.87 to 1.38), the quantity of lithotripsy (WMD= 0.43, 95%CI –?1.05 to 0.19), the frequency of shock wave (WMD= 0.00, 95%CI –?0.25 to 0.25), and the power of shock wave (WMD= 0.20, 95%CI –?0.05 to 0.46); and b) Postoperative complications: The ureteral stent placement were prone to cause dysuria (RR= 2.30, 95%CI 1.62 to 3.26), microscopic hematuria (RR= 2.66, 95%CI 1.97 to 3.58), gross hematuria (RR= 6.50, 95%CI 1.50 to 28.15), pyuria (RR= 1.78, 95%CI 1.44 to 2.21), positive urine culture (RR= 2.13, 95%CI 1.71 to 2.64), and suprapubic pain (RR= 3.10, 95%CI 1.59 to 6.04). Conclusions Ureteral stent placement before ESWL is inadvisable. Multi-factors which lead to bias affected the authenticity of our review, such as low-quality and small amount of RCTs. Further large-scale trials are required.

          Release date:2016-09-07 11:09 Export PDF Favorites Scan
        • Analysis of treatment for urosepsis caused by ureteral calculi in solitary kidney

          Objective To investigate the diagnosis and treatment strategy of urosepsis caused by ureteral calculi in solitary kidney. Methods The clinical data of patients with urosepsis caused by ureteral calculi in solitary kidney in the Department of Urology of Chengdu 363 Hospital Affiliated to Southwest Medical University from March 2015 to March 2020 were analyzed retrospectively. Results A total of 23 patients were included. One patient received ureteroscopic holmium laser lithotripsy, after which urosepsis and renal function deteriorated, then got better after anti-infection and hemodialysis treatment in intensive care unit; 17 patients received implantation of ureteral stent by cystoscopy, and 5 patients received percutaneous nephrostomy by ultrasound guiding, the 22 patients received ureteroscopic lithotripsy or flexible ureteroscopic lithotripsy electively. One patients had subcapsular renal hematoma postoperatively and worse renal insufficiency, the rest 22 patients had improved renal function. All patients were cured clinically. Conclusions For solitary kidney patients who have urosepsis caused by ureteral calculi, emergency treatment is necessary. The relief of urinary obstruction must be based on effective anti-infection. Choosing cystoscopic ureteral stent implantation or percutaneous nephrostomy depends on patients’ individualization. Ureterscopic lithotripsy simultaneously is not recommended. Ureteral intubation before cystoscopic ureteral stent implantation is important, which can increase the success rate of ureteral stent implantation.

          Release date:2021-09-24 01:23 Export PDF Favorites Scan
        • Analysis of Laparoscope-Ureteroscope Combination for Lithotripsy in 36 Patients with Hepatolithus

            Objective To evaluate the clinical value of ureteroscope in cholelithiasis treated by laparoscopic surgery.   Methods The clinical data of 36 patients admitted because of hepatolithus with ureteroscope combination in laparoscopic surgery from February 2007 to September 2009 in Guidong People’s Hospital of Guangxi were analyzed retrospectively.   Results In 33 cases, stones were removed once by ureteroscope in laparoscopic surgery with residual stones (in 3 cases residual stone were removed secondarily through T tube) and the other 3 cases were transferred to laparotomy forcedly due to bleeding of biliary duct and vessels of porta hepatis and tearing of bile duct. During operation, blood loss was 30-280 (94.51±54.70) ml; operation time was 110-260 (147.22±48.45) min; recovery time of bowel movement was 1-3 (2.03±0.76) d; postoperative hospitalization time was 6-13 (7.12±1.65) d (some discharged with T tube); the time of patients of T tubes pulled out was 28-45 (38.92±6.52) d. Bile leakage happened in 1 case and infection of biliary tract in 1 case, no complications such as biliary stricture or bile duct bleeding were found after operation.   Conclusions Treatment of intrahepatic bile duct or a single extra-hepatic sand-like stones with ureteroscopy usage in laparoscopic surgery is feasible and less invasive. It is a minimally invasive treatment for intra- or extra-hepatic stones due to rapidly postoperative rehabilitation.

          Release date:2016-09-08 10:52 Export PDF Favorites Scan
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