• Recurrent ureteral stricture with hydronephrosis

• Post-radiation ureteral stricture (cervical cancer)

• Iatrogenic surgical ureteral injury

• Post-stone or endoscopic surgery stricture

• Failed multiple dilatation/incision patients

• Elderly intolerant of open reconstruction

En Chu Kong Hospital, led by Vice Superintendent Chiung-Cheng Wang, completed Taiwan's first ureteral self-expanding metallic stent (Allium stent) placement, providing minimally invasive treatment with the shortest hospital stay for refractory ureteral stricture patients. Inspired 7 years ago by a 57-year-old post-cervical-cancer patient with recurrent stricture, the team optimized the manufacturer's instructions, became the first in Taiwan to receive IRB approval, and expanded to 14 hospitals with 27 physicians participating. 21 cases completed with average 24-month follow-up. The standardized protocol includes pre-admission SDM and anesthesia assessment, in-hospital endoscopy-guided placement under general anesthesia, and 3-6 month routine follow-up post-discharge. Outcomes at 24-month average: 81.0% success (17 cases), 4.8% improvement (1 case), only 7.7% failure. Taiwan's first SCI publication on this topic, with invited talks at NTUH and TUA.

• Taiwan's first Allium stent placement

• Optimized manufacturer's instructions

• First IRB approval in Taiwan

• Endoscopic placement, minimal invasive

• 14 hospitals, 27 physicians collaboration

• The first peer revew paper in Taiwan

• 26 patients

• Execution rate 100%; failure rate 0%

• 26 patients with mean 24 months followup

• Success treatment was noted in 18(69.2%) patients, improvement in 5(19.2%) patients and failure in 3(11.5%) patients.

• Above-average international success rate

• Stent migration rate: 14.3% (intl 4.3-26.7%)

• Stent obstruction rate: 9.5% (intl 0.9-39.1%)

• No mortality or major complications

• Safe GA endoscopic operation

• Detailed records & regular case conferences

• Regular equipment maintenance

• 100% positive feedback

• Mininal invasive, minimal pain

• Short length of stay, rapid recovery

• Patient favored minial therapy

• High follow-up compliance

• Taiwan's first Allium stent paper

• The results were similar with those of Israel, Italy, China, UK reports.

• Provides novel alternative for refractory ureteral stricture

• No need for multiple and repeated operation

• Shorten length of stay , reduce medical burden

• Expands influence through experience sharing