Consultant Urologist, Department of Urology, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.
Consultant Urological Surgeon, Bristol Urological Institute, North Bristol NHS Trust, Bristol, UK.
Br J Nurs. 2024 Sep 19;33(17):834-843. doi: 10.12968/bjon.2024.0212.
Clean intermittent self-catheterisation (CISC) with conventional eyelet catheters (CECs) is associated with urine flow-stops, which require the catheter to be repositioned so flow can resume. Flow-stops often occur because bladder mucosa is sucked into the eyelets.
This investigation aimed to compare the bladder-emptying performance of the micro-hole zone catheter (MHZC) with the CEC.
This was a multi-centre, randomised, open-label, controlled cross-over study with 82 women comparing the MHZC to the CEC. The endpoints relating to bladder-emptying performance included the residual volume at first flow-stop, the number of flow-stops and the proportion of successful treatment responses. The women's perception of the catheters was assessed as well as device discomfort.
Catheterisations with MHZC significantly reduced the risk of flow-stops, with relative risk results showing a 2.74 times lower risk of flow-stops with a health professional-led catheterisation and a 2.52 times lower risk during self-catheterisation. There was no statistical difference in residual urine volume at first flow-stop between the two catheters. Catheterisations with the MHZC were significantly more likely to achieve zero flow-stops and a residual urine volume of <10 ml at first flow-stop. The women had a significantly more positive perception of the MHZC than the CEC in areas including handling, confidence, sensation and satisfaction.
The MHZC enabled effective bladder emptying without catheters needing to be repositioned, supporting the women by simplifying the procedure and making them feel confident that their bladders were empty.
使用传统带孔导尿管（CEC）进行清洁间歇自我导尿（CISC）时会出现尿流中断，此时需要重新调整导尿管位置以恢复尿液流动。尿流中断通常是由于膀胱黏膜被吸入导尿管的孔眼中引起的。
本研究旨在比较微孔区导尿管（MHZC）与 CEC 的膀胱排空性能。
这是一项多中心、随机、开放标签、对照交叉研究，共有 82 名女性参与，比较 MHZC 与 CEC。与膀胱排空性能相关的终点包括首次尿流中断时的残余尿量、尿流中断次数以及治疗反应成功率。还评估了女性对导管的感知以及器械不适感。
MHZC 导尿显著降低了尿流中断的风险，健康专业人员主导导尿时的相对风险结果显示发生尿流中断的风险降低了 2.74 倍，自我导尿时的风险降低了 2.52 倍。两种导管的首次尿流中断时残余尿量无统计学差异。MHZC 导尿更有可能实现零尿流中断和首次尿流中断时残余尿量<10ml。女性对 MHZC 的感知明显比 CEC 更积极，包括处理、信心、感觉和满意度等方面。
MHZC 能够实现有效的膀胱排空，无需重新调整导管位置，通过简化操作流程使女性感到自信，确保膀胱排空。
