Abstract: Objective To investigate the feasibility of catheterization with a super smooth interventional guidewire combined with a metal catheter and a conventional catheter for male patients who failed conventional catheterization. Methods A total of 205 male patients who failed conventional catheterization were treated with a super smooth interventional guidewire combined with a metal catheter and a conventional catheter. Results Of the 205 patients, 202 had successful catheterization and 3 failed. The success rate of primary catheterization was 98.53%, and the failure rate was 2.47%. Conclusion The use of super smooth interventional guidewire combined with metal catheter for catheterization is a simple, safe, and highly successful method, which is worthy of promotion in clinical practice.

Key words: Catheterization, Dysuria, Super smooth interventional guidewire, Metal catheter