BACKGROUND To report current worldwide variation in techniques and clinical practice of flexible ureteroscopy (FURS) among endourologists of different case volumes per year. METHODS Two invitations to complete an internet survey were emailed to Endourological Society members. Some of survey questions asked about indications of using FURS for renal and upper ureteral stones. Others were concerned with clinical practice of FURS (such as preoperative stenting, use of ureteral access sheath (UAS) and safety guidewire, technique of Laser lithotripsy and fragment retrieval, and post-FURS stenting. Responders were distributed into two groups; high-volume (> 100 cases/year) and low-volume surgeons (< 100 cases/year) and data were compared between both groups. RESULTS Responses were received from 146 endourologists all over the world (62 high-volume and 84 low-volume). FURS for intrarenal stone > 20 mm was used by 61% of high-volume surgeons compared with 28.6% for low-volume (P < 0.001). Semirigid URS was used for upper ureteric stones in 68% among high-volume group and 82% in low-volume group (P = 0.044). UAS was used by 62% in low-volume group and 69% in high volume group (P = 0.516). Laser stone dusting was preferred by 63% in low-volume group versus 45% by high-volume (P = 0.031). More responders in low-volume group preferred to leave the stent for 6 weeks (P = 0.042). CONCLUSIONS The use of FURS for treating upper tract calculi has expanded by high volume endourologists to include large renal stones > 20 mm. Low-volume surgeons prefer to use semi-rigid URS for treatment of upper ureteral stones, to apply Laser stone dusting and maintain ureteral stents for longer periods.

中文翻译：

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每年病例数对灵活的输尿管镜检查实践的影响：基于互联网的调查。

背景技术要报告全球每年在不同病例量的内科医生中使用柔性输尿管镜（FURS）的技术和临床实践的变化。方法通过电子邮件将两个完成互联网调查的邀请发送给Endourological Society成员。一些调查问题询问了使用FURS治疗肾和上输尿管结石的适应症。其他人则关注FURS的临床实践（如术前支架置入，输尿管入路鞘管（UAS）和安全导丝的使用，激光碎石术和碎片取回技术以及FURS后置入支架）。比较两组（> 100例/年）和小剂量（<100例/年）外科医生的数据。结果收到了来自全球的146位耳鼻喉科医生的回复（62份大批量和84份小批量）。61％的大容量外科医生使用FURS治疗肾内结石> 20 mm，而小剂量的外科医生使用28.6％（P <0.001）。半刚性URS用于高输尿管结石的输尿管结石比例为68％，小体积输尿管结石的比例为82％（P = 0.044）。小批量使用UAS的占62％，大批量使用UAS的占69％（P = 0.516）。小批量使用激光石粉的比例为63％，而大批量使用的比例为45％（P = 0.031）。小剂量组中有更多反应者更愿意将支架放置6周（P = 0.042）。结论高容量内分泌学家已将FURS用于治疗上路结石的应用扩大到包括大于20 mm的大肾结石。