Uretero-vesical reimplantation was performed on 10 patients after removing bladder and ureter lesions at Thong Nhat Hospital from February 1995 to February 1997. We have used the conception of Le Duc in these procedures and have obviated defects of the submucosal tunnel’s procedure. The outcome was very good in 7/8 cases. One case developed renal failure that did not relate to the procedure. This procedure is easy to conduct and can save the valve mechanism by preventing vesico-ureteral reflux
Replantation ; Ureteroscopy

No abstract available.
Lithotripsy* ; Shock* ; Ureter* ; Ureteroscopy*

Ureteroscopic extraction has been used for the management of the ureteral stone. especially lower ureteral stone. During the last 2 years we performed ureteroscopy for removal of mid or distal ureteral stones in 63 patients. The causes of failure consisted of 4 unskillful instrumental manipulations, 4 migrations, of the stone. 3 failure of dilating ureter. 3 failures of access to the stone and 2. severe bleedings due to ureteral avulsion. The failure rate decreased from 33.3% for 30 procedures done during the first one year to 18.7 % for 33 procedures done in the next one year. We believe that the failure rate of ureteral stone removal will be consistently decreased with experience.
Humans ; Ureter ; Ureteroscopy

I have managed fifty cases of lower ureteral stone who were admitted to the Department of Urology, Yungdong-Hospital during from May 1991 to July 1992. 1. Between May 1991 and April l992, 40 cases of lower ureteral stone were managed. Among them, 11 cases were extracted with the Dormia stone basket, 6 cases were performed ureteral meatotomy, 11 cases were delivered spontaneously, 3 cases were removed with ureterolithotomy and 9 cases transferred to other hospital. Over all success rate of stone removal were 62.5% (25 cases). 2. Between May 1992 and July 1992, 10 cases of ureteroscopic removal of lower ureteral stone were performed. All cases were removed successfully. Complications occurred in 7 cases, but managed conservatively in all cases. I agree that ureteroscopic removal of stone is also the treatment of choice for lower ureteraI stone in non-training hospital.
Ureter* ; Ureteroscopy ; Urology

PURPOSE: We retrospectively reviewed the cases of ureteroscopic stone removal at our hospital and defined the efficacy, safety and the skilled experience of the surgeon. MATERIALS AND METHODS: Ureteroscopic stone removal was done in 510 cases. Sixty eight stones were located in the upper ureter, 114 stones in the mid ureter, and 328 stones in the lower ureter. The stone size was less than 5mm in 210 cases, from 5 to 10mm in 241 cases and more than 10mm in 59 cases. The objective cases were categorized into three groups according to the experience of the surgeon, and then compared to each group. RESULTS: The overall success rate was 94.5%. The success rates of upper, mid and lower ureteral stones were 86.7, 90, and 96.9%. The success rate was 95.7% in stones less than 5mm, 94.1% in 5 to 10mm and 91.5% in more than 10mm. The operation results were improved and stabilized after 50 cases. There were 48 cases (9.4%) of complications which were treated successfully with conservative treatment except for 2 cases. CONCLUSIONS: Our study suggests that the ureteroscopic stone removal technique of the surgeon is improving by accumulating operation experience, and stabilized skillful technique will be achieved after experience of more than 50 cases.
Retrospective Studies ; Ureter ; Ureteroscopy

Introduction: There is a limited data on the incidence of pediatric urolithiasis in the Philippines as well as studies on how it is managed. With the advent of endourology, there is already an evident shift from open stone surgery to minimally invasive surgery as first line in the treatment of pediatric urolithiasis. A tertiary referral center in the country caters to most pediatric urolithiasis cases in the country and offers the different minimally invasive modalities outlined in the latest guidelines. This study aimed to review the different minimally invasive therapeutic modalities for pediatric urolithiasis and its outcomes in the past ten years in a tertiary referral center in the Philippines. Methods: This retrospective study was conducted through charts review of all pediatric patients (0-18 years) who underwent stone surgery from January 2012 to December 2022. Demographic and clinical data, stone characteristics, types of stone surgery, and outcomes were obtained. Results: A total of 87 pediatric patients (54 boys, 33 girls) with 105 urolithiases were analyzed. The patients had a mean age of 13 years, with an interquartile range (IQR) spanning from 6 to 18 years. Among them, 62.07% were male, while 37.93% were female. The most prevalent symptom reported was flank pain, affecting 41.38% of the patients, followed by urinary tract infections (UTI) (11.49%) and gross hematuria (8.05%). For the management, 82.86% of the patients underwent minimally invasive stone procedures with extracorporeal shockwave lithotripsy (ESWL) as the most common procedure (44.76%) and ureterolithiases as the most common stone (43.81%). On the other hand, 17.14% of the subjects underwent open stone surgery done mostly on cystolithiases and large ureterolithiases (38.89% each). All patients recovered and were discharged post operatively. Conclusion The institution practices minimally invasive approaches in the majority of pediatric patients with urolithiasis. Open stone surgery is reserved for patient with large complex stones and those with anatomic abnormalities.
Child ; Lithotripsy ; Ureteroscopy

From 1999 to 2004, 6 pregnant women with lasting symptoms of ureteral calculi underwent therapeutic ureteroscopy in the Hospital of Hanoi Post and Telecommunication. The length of gestation ranged from 3 to 28 weeks (median length is 9 weeks). The calculi were detected by ultrasonogrphy, however 1 patient by an X-ray plain film because she was unaware of her pregnancy. In 5 patients, the calculi were removed successfully. There was no complication. The outcome of gestation was satisfactory: the deliveries were normal in 5 patients. 1 patient was stone free and had elective termination unrelated to ureteroscopy. Conclusion: diagnosis and treatment of ureteral calculi in pregnant women is difficult because of some physiological and anatomical changes, and the need of ensuring mother and child's safety. Assessment of gestational development and damage of kidneys are needed for proper treatment
Ureteroscopy ; Pregnancy ; women ; Ureteral Calculi

From 6/2000 to 6/2004, 147 patients of ureteral calculi were treated by ureteroscopic lithotripsy in General Surgical Department of 19-8 Hospital. Man: 46 (31.29%); Woman: 101 (68.71%); From 18 to 78 years old. The right side: 77 (52.38%); The left side: 56 (38.09%); The both side: 14 (9.53%). Results: Very good 104 (70.75%); Good: 30 (20.41%); No good: 13 (8.84%). Without complications and deaths.
Lithotripsy ; Ureteroscopy ; Ureteral Calculi ; Therapeutics

: In the field of Urology, flexible ureterorenoscopy (fURS) remains a challenging skill for junior residents to develop due to its steep learning curve. Hence, training models were incorporated into simulation-based training to allow for novice trainees to overcome the learning curve without potentially compromising patient outcomes and minimize complications. OBJECTIVE: To describe the design and test the validity of a non-biological three-dimensional (3D) model of the pelvocalyceal system as a tool for simulation-based training for flexible ureterorenoscopy. METHODS: This was a prospective, quasi-experimental, surgical innovation research stage 2a study conducted in a tertiary government hospital. The retrograde intrarenal surgery (RIRS) box was composed of four siliconized pelvocalyceal systems which were 3D printed using computed tomography urograms of actual patients. Thirty-two urologists were asked to perform flexible ureteroscopy using the RIRS box and were given a questionnaire to assess face and content validity using the Likert scale. RESULTS: The RIRS Box training model showed good face and content validity. The 3D printed pelvocalyceal system was judged to have a close anatomical resemblance to an actual calyceal system. While performing fURS, the RIRS box provided similar pelvocalyceal visualization and instrument handling as in an actual procedure. Majority of participants considered the training model useful for training (75%) and believed that it may improve the RIRS technique (46.8%). CONCLUSION The RIRS Box training model may help urologists improve the manner in which they acquire technical knowledge and skills necessary in performing fURS.
Ureteroscopy ; Ureteroscopes ; Printing, Three-Dimensional

PURPOSE: There has been a recent trend of using ureteroscopic removal of stone (URS) for treating upper ureter stones, due to its safety and success rate; therefore we attempted to find the varying success of URS for different locations and sizes of upper ureter stone. MATERIALS AND METHODS: 107 patients with upper ureter stones, who were treated with URS in our hospital, between January 2000 and May 2005, were retrospectively reviewed. The patients were classified into three groups according to the locations (named L3, L4 and L5) and sizes (<10mm and > or=10mm) of the upper ureter stones. RESULTS: The overall success rate of URS was 71.0%. With regard to the three locations, L3 had a 46.3% success rate, while L4 and L5 had success rates of 76.9 and 92.5%, respectively. The success rates of URS were significantly higher in L4 and L5 locations compared with that in L3 (p<0.05). In addition, the success rates of URS for stones equal to or larger than 10mm and less than 10mm were 59.5 and 78.5%, respectively, with the former being significantly lower than the latter (p=0.036). CONCLUSIONS: The success rates of URS were significantly higher when the location of upper ureter stones was lower than L4 and when the size of the stone was less than 10mm. Therefore, both the location and size of the stones are important factors potentially influencing the outcome of URS for upper ureter stones.
Humans ; Retrospective Studies ; Ureter* ; Ureteral Calculi ; Ureteroscopy