Abstract
BackgroundFlexible ureteroscopic incision and drainage is a relatively new surgical method for treating parapelvic cysts. Considering that the intraoperative localization of the cyst may fail with a flexible ureteroscope, we use an innovative ultrasound-guided method to locate the cystic wall during flexible ureteroscopic surgery.MethodsWe retrospectively reviewed 17 consecutive cases of parapelvic renal cysts treated by ultrasound-guided flexible ureteroscopy between March 2017 and May 2020. The differences between the simple flexible ureteroscopic technique and ultrasound-guided flexible ureteroscopic technique were compared. The surgical procedures, postoperative complications, results and patient follow-ups were evaluated.ResultsThe cyst wall was seen clearly in 10 patients with ureteroscopic vision. Another 7 patients underwent ultrasound-guided flexible ureteroscopic surgery since it was difficult to identify the cyst wall. The mean operative time was 25.9 ± 8.7 min and 37.1 ± 10.1 min for the conventional and modified techniques, respectively (P = 0.004); the mean time to search for cysts was 17.6 ± 5.8 min and 26.5 ± 8.4 min, respectively (P = 0.002); and the mean incision time was 7.1 ± 4.9 min and 12.1 ± 5.6 min, respectively (P = 0.000). All of the patients were followed-up for 12 months, and no serious complications or recurrence were observed.ConclusionsWe demonstrated that it is feasible and safe to treat parapelvic renal cysts by ultrasound-guided flexible ureteroscopic incision and drainage. The small sample size and need for further studies were the limitations of our work.
Highlights
ObjectivesThe primary aim of this study was to present a method for locating cystic walls during routine flexible ureteroscopy when parapelvic cysts could not be identified
Flexible ureteroscopic incision and drainage is a relatively new surgical method for treating parapelvic cysts
Parapelvic renal cysts are a special type of renal cystic disease
Summary
The primary aim of this study was to present a method for locating cystic walls during routine flexible ureteroscopy when parapelvic cysts could not be identified
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