全硅橡胶和乳胶导尿管留置导尿的临床比较

目的探讨不同材料导尿管留置导尿对尿道黏膜的影响，以其指导临床合理选择导尿管。方法将需要留置导尿病人随机分为全硅橡胶及硅化乳胶导尿管两组，每组各为30例，分别检测尿常规、记录留置导尿管期间病人的感觉。结果插管初期硅橡胶导尿管比乳胶导尿管镜下血尿发生率低，插管期间硅橡胶导尿管组病人不适感觉少见。结论插管过程中内固定囊压迫膀胱黏膜或者病人活动牵拉导管可能是造成尿道或膀胱损伤的原因之一。全硅橡胶导尿管相对于乳胶导尿管对尿道黏膜损伤轻，建议对需要长期留置导尿管的病人尽量使用对尿道刺激和损伤小的全硅橡胶导尿管。

Effect of silicon and latex urinary catheters: a comparative study]

Objective To evaluate the effect of silicon and latex urinary catheters on urinary mucosa. Methods A randomized, controlled prospective clinical trial was carried out in 60 patients admitted in the Department of Neurosurgery, who required long-term use of an indwelling urinary catheter. The patients were divided into 2 equal groups with placement of silicon or latex urinary catheter, and routine laboratory urine test was performed on a regular basis and the patients feelings during catheter retention were recorded. Results Patients with placement of indwelling silicone catheters reported no obvious discomfort in relation to the catheter placement and had significantly lower incidence of hematuiria identified microscopically than those with common latex catheters. Conclusion Compared with latex catheters, silicone catheters cause less injuries and reduce substantially irritation of the urinary mucosa, and we suggest the use of silicone catheter in patients requiring long-term indwelling urinary catheters.