About this trial
Comparison of Ureteroscopy in fresh versus recurrent cases of stone ureter
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
• all cases with middle and lower ureteric stone candidate for endoscopy.
Stone 15mm or less.
Disqualifiers
• Patients with a ureteral stent.
Patient refusing participation.
Pregnant woman.
Active urinary tract infection.
Trial population
.4. 2- Study subjects: 1. Inclusion criteria: * all cases with middle and lower ureteric stone candidate for endoscopy. * Stone 15mm or less. 2. Exclusion criteria: * Patients with a ureteral stent. * Patient refusing participation. * Pregnant woman. * Active urinary tract infection. * Comorbidities prevent intervention including bleeding tendency or uncorrectable coagulation profile. 3. Sample Size Calculation: Based on previously reported frequency of primary failure of ureteocopy in case of recurrent stone that ranged between 1-37% (\*reference)\* a total sample size of 62 patients will be required ( 31 patients in each arm) with the following assumption; alpha error 5%, 80% power with 95% confidence interval
Trial design
Cohort
Prospective
Treatments tested in this trial
Ureteroscopy
Procedure/SurgeryURS is done to each group to reveal outcome of stone free rate in fresh versus recurrent cases of stone ureter
Treatment groups
Trial outcomes
Primary outcomes
Stone free rate of Urereroscopy in fresh versus recurrent cases of stone ureter
• Stone free rate with a mean operative time of 1 hr by MSCTKUB or Plain KUB to determine residual stones post operative
Secondary outcomes
• Rate of intraoperative findings in each group.
• Rate intraoperative findings in each group by ureteroscope
• The rate of complication in each group
To determine rate of intraoperative complications as bleeding , ureteric perforation , residual stones
• The rate of stone impaction in each group
Rate of stone impaction in each group fresh and recurrent cases
Sponsors and contacts
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