Treatment of renal parapelvic cysts with a flexible ureteroscope
Qizhan Luo1, Xiaobo Zhang, Hequn Chen
1Department of Geriatrics, Study Group of Urology, Xiangya Hospital Central-South University, Changsha, 410008, Hunan Province, China.
Purpose:
The aim of this study was to assess efficacy and safety of a flexible ureteroscope to treat renal parapelvic cysts. Treatment goals included avoidance of injury to renal vessels or hilar structure and minimizing the recurrence of cysts.
Patients And Methods:
Renal parapelvic cysts from 15 patients that were incised and drained with a flexible ureteroscope were evaluated retrospectively between October 2011 and May 2013. Mean operation time, estimated blood loss and time of hospital stay were evaluated. Symptomatic and radiologic results, conducted by computed tomography or color Doppler ultrasound, were analyzed after surgery.
Results:
According to the Dindo-Clavien classification, no major complications were observed during the different types of surgery. One patient exhibited red hematuria (mild), while bladder irritation symptoms (mild) occurred in three cases in the hospital and in two cases in the first postoperative month (moderate). Average total operation times, mean duration for the incision in the renal parapelvic cyst wall and mean estimated blood loss were 31 ± 8 min, 13 ± 2 min and 20 ± 5 ml, respectively. Mean hospital length of stay was 3 days. Radiologic success was defined as no recurrence of the cyst or a reduction in cyst size by at least half. In one case, cyst size did not reduce to half of the previous size, whereas cyst sizes were reduced to less than half of the previous size in four cases. No cysts were detected in the other cases after 6 or 12 months.
Conclusions:
Feasibility, safety and efficacy of the flexible ureteroscope for treatment of retrograde renal parapelvic cysts were demonstrated using appropriate patient selection and skilled surgical technique.
Insights
Flexible ureteroscopy offers a safe and effective method for treating renal parapelvic cysts. This minimally invasive approach minimizes complications and achieves successful cyst reduction in most patients.
Area of Science:
- Urology
- Minimally Invasive Surgery
- Endourology
Background:
- Renal parapelvic cysts can cause symptoms and require treatment.
- Traditional surgical approaches may carry risks of injury to renal structures.
- Minimally invasive techniques are sought to improve patient outcomes.
Purpose of the Study:
- To evaluate the efficacy and safety of flexible ureteroscopy for treating renal parapelvic cysts.
- To assess the potential for injury to renal vessels or hilar structures.
- To minimize the recurrence rate of treated cysts.
Main Methods:
- Retrospective analysis of 15 patients treated with flexible ureteroscopy for renal parapelvic cysts (October 2011 - May 2013).
- Evaluation of operative time, estimated blood loss, and hospital stay.
- Assessment of symptomatic and radiologic outcomes using computed tomography or color Doppler ultrasound.
Main Results:
- No major complications were reported based on the Dindo-Clavien classification.
- Minor complications included mild hematuria and bladder irritation.
- Radiologic success, defined by cyst size reduction or absence, was achieved in most cases, with complete resolution in 10 out of 15 patients.
Conclusions:
- Flexible ureteroscopy is a feasible, safe, and effective treatment for renal parapelvic cysts.
- Careful patient selection and surgical technique are crucial for successful outcomes.
- This approach offers a valuable alternative for managing renal parapelvic cysts.
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