目的 探讨分段定压模式在改善慢重症患者膀胱功能中的应用效果。 方法 采用便利抽样选取2022年3月至2023年3月期间符合纳入标准的入住患者114例，分为对照组57例和观察组57例。对照组患者使用定时模式，观察组患者使用分段定压模式。比较两组尿流相关指标：最大尿流率、平均尿流率、排尿时间、2秒时尿流率，平衡膀胱率，尿管重置率，残余尿量。 结果 剔除脱落病例，最终对照组纳入53例患者，观察组纳入52例患者。观察组最大尿流率、平均尿流率、2秒时尿流率、平衡膀胱率均高于对照组（均P＜0.05），排尿时间、残余尿量、尿管重置例数低于对照组（均P＜0.05）。 结论 通过运用分段定压模式对慢重症患者进行反复持续的膀胱功能训练，可有效改善患者的膀胱功能，减轻患者膀胱损伤，同时减少临床护士工作量，保证患者治疗模式的一致性。

Objective To explore the effect of a segmented constant pressure pattern in improving bladder function of patients with chronic critical illness(CCI). Methods From March 2022 to March 2023,114 patients admitted were selected by the convenience sampling method as the research objects．The patients were divided into the control group (n=57) and the experimental group (n=57).The control group received treatment using a timing pattern,while the experimental group received treatment using the segmented constant pressure pattern.Uroflow-related parameters,including maximum flow rate,average flow rate,voiding time,2-second flow rate,balanced bladder rate,catheter replacement rate,and residual urine volume,were compared between the two groups. Results Excluding the shedding cases,53 patients were included in the control group and 52 patients in the experimental group finally.The experimental group showed significantly higher maximum flow rate,average flow rate,and 2-second flow rate compared to the control group (all P＜0.05).The experimental group showed lower the voiding time,lower residual urine volume and fewer cases of urinary catheter replacement compared to the control group (all P＜0.05). Conclusions The segmented constant pressure pattern for continuous bladder function training in CCI patients can effectively improve bladder function,reduce bladder injury,and lessen the workload of clinical nurses.This approach ensures consistency in patient treatment patterns.

R473

常州市卫健委青年人才科技项目（QN202122）