Brocklehurst J C, Hickey D S, Davies I, Kennedy A P, Morris J A
Department of Geriatric Medicine, University of Manchester.
Br Med J (Clin Res Ed). 1988 Jun 18;296(6638):1691-3. doi: 10.1136/bmj.296.6638.1691.
A new balloon catheter for women with a flexible urethral portion that conforms to the shape of the closed urethra was tested. In sheep control catheters caused epithelial destruction, which was absent with the conformable catheter. A 12 week crossover trial compared control catheters in 52 long stay geriatric patients. Eighty two out of 91 conformable catheters were rated as comfortable compared with 68 of 87 control (p = 0.006). The average length of time in situ was 15.9 days for the conformable catheter compared with 12.9 days for the control (p = 0.001). The average number of bypasses a week with the conformable catheter was 1.1 compared with 1.3 for the control; this difference was not significant. Examination of 249 used catheters showed significantly fewer with intraluminal obstruction with struvite among the conformable than control catheters (1 (0.8%) versus 15 (11.5%); p less than 0.001). This new catheter for women is a substantial improvement over the Foley catheter and (except in urethral stricture) is suitable for all forms of drainage.
一种用于女性的新型球囊导管进行了测试，其尿道部分具有柔韧性，能贴合闭合尿道的形状。在绵羊身上，对照导管导致了上皮损伤，而贴合型导管则未出现这种情况。一项为期12周的交叉试验对52名长期住院老年患者使用的对照导管进行了比较。91根贴合型导管中有82根被评为使用舒适，而87根对照导管中这一数字为68根（p = 0.006）。贴合型导管的平均留置时间为15.9天，对照导管为12.9天（p = 0.001）。贴合型导管每周的平均旁路次数为1.1次，对照导管为1.3次；这一差异不显著。对249根使用过的导管进行检查发现，贴合型导管中因鸟粪石导致管腔内梗阻的情况明显少于对照导管（1根（0.8%）对15根（11.5%）；p小于0.001）。这种新型女性导管相较于福勒导管有了显著改进，并且（尿道狭窄情况除外）适用于所有形式的引流。
