Department of Urology, Haseki Training and Research Hospital, Istanbul, Turkey.
J Endourol. 2010 Dec;24(12):1929-34. doi: 10.1089/end.2010.0211. Epub 2010 Nov 2.
We aimed to compare the outcomes of patients who were treated using digital and fiberoptic flexible ureterorenoscopy (urs) for kidney stones.
Between September 2008 and December 2009, a total of 76 patients who were treated with either a conventional fiberoptic flexible ureterorenoscope (FFU) (n = 34) or digital flexible ureterorenoscope (DFU) (n = 42) were compared. All procedures were performed by the same surgeon. Preoperative, operative, and postoperative data were retrospectively analyzed.
The mean stone size was 95.2 ± 61.3 mm(2) in the FFU group while it was 93.5 ± 57.1 mm(2) in DFU group (P > 0.05). The initial assessment of the entire pyelocaliceal system was possible in 33 of 34 (97%) cases in the FFU group and in 38 of 42 cases (90.4%) in the DFU group (P > 0.05). The mean operative time was significantly longer in the FFU group (54.4 ± 14.8 minutes vs 44.8 ± 17.9 minutes, P = 0.001). Flexible URS time was 46.5 ± 13.4 minutes in the FFU group while it was 38.3 ± 17.4 minutes in the DFU group (P = 0.001). Mean fragmented stone size per minute was 2.43 ± 0.81 mm(2)/min in the DFU group and 1.96 ± 0.80 mm(2)/min in the FFU group; this was statistically significant (P = 0.01). The overall stone-free rate 1 month after the procedure was 88.2% in the FFU group and 85.7% in the DFU group (P > 0.05). The average number of uses for FFU and DFU before repair necessity was 17 and 21, respectively.
Although the DFU have more limited maneuverability, comparable success rates can be achieved with both conventional and digital instruments. On the other hand, the DFU significantly reduced the operative time compared with the conventional one.
比较使用数字化和纤维光学软性输尿管镜（urs）治疗肾结石患者的结果。
2008 年 9 月至 2009 年 12 月，共有 76 例患者分别接受传统纤维光学软性输尿管镜（FFU）（n = 34）或数字柔性输尿管镜（DFU）（n = 42）治疗。所有手术均由同一位外科医生完成。回顾性分析术前、术中及术后数据。
FFU 组结石平均大小为 95.2 ± 61.3mm²，DFU 组为 93.5 ± 57.1mm²（P > 0.05）。FFU 组 34 例中 33 例（97%）可初步评估整个肾盂肾盏系统，DFU 组 42 例中 38 例（90.4%）（P > 0.05）。FFU 组的平均手术时间明显长于 DFU 组（54.4 ± 14.8 分钟 vs 44.8 ± 17.9 分钟，P = 0.001）。FFU 组软性 URS 时间为 46.5 ± 13.4 分钟，DFU 组为 38.3 ± 17.4 分钟（P = 0.001）。DFU 组每分钟粉碎结石的平均大小为 2.43 ± 0.81mm²/分钟，FFU 组为 1.96 ± 0.80mm²/分钟；这是有统计学意义的（P = 0.01）。FFU 组术后 1 个月结石清除率为 88.2%，DFU 组为 85.7%（P > 0.05）。FFU 和 DFU 分别在需要修复前平均使用 17 次和 21 次。
尽管 DFU 的操作灵活性有限，但传统器械和数字器械都能取得相似的成功率。另一方面，DFU 与传统器械相比，显著缩短了手术时间。
