Presentation Authors: wenying wang*, Jun Li, beijing, China, People's Republic of
Introduction: Both flexible ureteroscopic lithotripsy(FUL) and 4.8F mircro-PCNL are safe and effective method to treat small to moderately sized renal stones in adults and children. Currently, there is no clear definition for selecting one method. However, for solitary kidney stones, particularly for infants, the method that requires fewer surgeries, fewer sessions of anesthesia, smallest channel and achieves the best stone free rate, should be used. The aim of this study is to compare the effects of micro-percutaneous nephrolithotomy (micro-PCNL) and flexible ureteroscopic lithotripsy (FUL) in treating 1-2 cm solitary renal stones in infants.
Methods: A retrospective analysis was performed on data from 57 infants who received micro-PCNL and FUL surgery in our hospital from October 2016 to May 2018. The patients were divided into group 1â€”micro-PCNL group and group 2â€”FUL group. Perioperative data, including surgical time, blood loss, stone free rate, and complications, were analyzed.
Results: There were 27 patients in group 1 and 30 patients in group 2, and the patientsâ€™ mean age was 19 and 21 months respectively. The average stone size was 1.6Â±0.3 cm in group 1 and 1.7Â±0.2 cm in group 2; the mean surgical time was 21Â±4 min and 23Â±5 min; and the stone free rate at 1 month after surgery were 88.9% and 86.7%, respectively. The average number of anesthesia sessions for patients was 1.4 in group 1 and 2.7 in group 2. The complication rate was 14.8% and 16.7%, respectively. None of the patients needed conversion to the 12-14F mini-PCNL.
Conclusions: The results of this study showed that the surgical effects and complications of micro-PCNL and FUL in treating infants with 1-2 cm solitary renal stones were similar. However, micro-PCNL allowed lower anesthesia sessions. Therefore, micro-PCNL is an effective, alternative method for 1-2 cm solitary renal stones in infants.