An observational study in Stone Ureter, sponsored by Assiut University. Not yet recruiting at 1 site in Egypt. Per ClinicalTrials.gov, last updated 2024-09-19.
Sponsored by Assiut University · Observational
Comparison of Ureteroscopy in fresh versus recurrent cases of stone ureter
Urolithiasis is a common cause of both urology outpatient clinic and emergency room encounters. Approximately 75-90% of ureteral stones pass spontaneously. from this point of view other managements of ureteric stones either ESWL, ureteroscopy or open surgery according to location, site, size, and density. Ureteroscopy is commonly used to diagnose and treat kidney and ureteral stones, ureteral strictures, and urothelial cancers. Semirigid URS is the gold standard of treatment for ureteral stones. High success rates and low morbidity have been reported in semirigid URS. but complications still occur in some cases. The possibility to predict their occurrence should influence patient advisement and better case selection. there are many predictors of successful URS as age, gender, previous ESWL, and stone character. In addition, the impacted stone is a risk factor, and it is described in the literature as ureteral wall thickness, higher grades of hydronephrosis, ureteral stricture, polyp, inflammatory reaction, and difficulty to introduce the guide wire. the literature is very poor in illustrating the previous procedures as a predictor of successful URS only seen in very few original articles as second-time URS after any procedure decreases the rate of success, so it is a point of research that Amr Moustafa aims to clarify. Amr Moustafa will conduct a prospective study to evaluate the outcomes of URS for stones in the fresh and recurrent cases.
84 studies on the registry are indexed under Ureterolithiasis; 19 are open to participants now.
This study's planned enrollment of 80 is below the median of 136 across 13 observational studies indexed under Ureterolithiasis.
Browse Ureterolithiasis studies →Assiut University is the lead sponsor of 5,078 studies on the registry; 2,178 are open to participants now.
Of its 14 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
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.4. 2- Study subjects:
Inclusion criteria:
Exclusion criteria:
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
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all cases with middle and lower ureteric stone candidate for endoscopy.
Exclusion Criteria:
Patients with a ureteral stent.
Outcome of URS in fresh stone ureter
Procedure: Ureteroscopy
Outcome of URS in recurrent cases of stone ureter post ESWL ,URS , open surgery
Procedure: Ureteroscopy
URS is done to each group to reveal outcome of stone free rate in fresh versus recurrent cases of stone ureter
Also known as: URS
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
Time frame: 1 day post operative by MSCTKUB or Plain KUB to determine residual stones post operative
• Rate of intraoperative findings in each group.
• Rate intraoperative findings in each group by ureteroscope
Time frame: Intraoperative
• The rate of complication in each group
To determine rate of intraoperative complications as bleeding , ureteric perforation , residual stones
Time frame: Intraoperative by ureteroscope and one day post operative by MSCT
• The rate of stone impaction in each group
Rate of stone impaction in each group fresh and recurrent cases
Time frame: Intraoperative by ureteroscope
This study is not yet recruiting, as verified in Sep 2024. You cannot join it, but the record below documents what was studied.
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