目的 分析不同频率功能性磁刺激（FMS）对脑卒中后尿潴留患者排尿功能康复的影响。 方法 选取2020年1月至2022年1月期间河南大学附属南石医院收治的200例脑卒中后尿潴留患者为研究对象，采用简单随机法分为5 Hz组、10 Hz组、20 Hz组和对照组，每组均50例。四组均采用常规神经内科临床药物、康复治疗、间歇导尿治疗，其中5 Hz组、10 Hz组、20 Hz组再分别给予5、10、20 Hz的FMS治疗，对照组给予同5 Hz组相同部位和参数的假刺激治疗。比较四组膀胱压力容量指标、排尿情况、恢复自主排尿时间、生活质量精简问卷（SQLP）评分、尿潴留疗效。 结果 治疗前四组的各项膀胱压力容量指标水平、排尿情况、恢复自主排尿时间、SQLP评分比较差异无统计学意义（P > 0.05）；治疗后较治疗前四组的膀胱容量、膀胱压力均升高，5 Hz组、10 Hz组、20 Hz组均高于对照组，治疗后较治疗前四组的残余尿量均降低，5 Hz组、10 Hz组、20 Hz组均低于对照组，差异有统计学意义（P < 0.05），且呈现剂量效应。治疗后较治疗前四组的日均排尿次数、平均单次排尿量均增多，5 Hz组、10 Hz组、20 Hz组均多于对照组，治疗后较治疗前四组的日均导尿次数均减少，5 Hz组、10 Hz组、20 Hz组均少于对照组，差异有统计学意义（P < 0.05），且呈现剂量效应。治疗后较治疗前四组的SQLP评分均降低，5 Hz组、10 Hz组、20 Hz组均低于对照组，治疗后5 Hz组、10 Hz组、20 Hz组恢复自主排尿时间均短于对照组，差异有统计学意义（P < 0.05），且呈现剂量效应。5 Hz组、10 Hz组、20 Hz组的尿潴留总有效率均高于对照组，差异有统计学意义（P < 0.05），且呈现剂量效应。 结论 5、10、20 Hz的FMS治疗均能够改善脑卒中后尿潴留患者的排尿功能和生活质量，且临床疗效呈现剂量反应，20 Hz的FMS疗效优于5 Hz、10 Hz。

Objective To analyze the effect of functional magnetic stimulation （FMS） at different frequencies on the recovery of urination function in patients with urinary retention after stroke. Methods A total of 200 patients with urinary retention after stroke admitted to our hospital from January 2020 to January 2022 were recruited as the research objects. They were divided into 5 Hz， 10 Hz， 20 Hz， and control groups by simple random method， with 50 patients in each group. All four groups were treated with conventional medication， rehabilitation therapy， and intermittent catheterization. The 5 Hz group， 10 Hz group， and 20 Hz group were treated with FMS at 5 Hz， 10 Hz， and 20 Hz， respectively， and the control group was treated with sham stimulation at the same site and parameters as the 5 Hz group. Bladder pressure volume index， urination status， recovery time of spontaneous urination， Quality of Life Questionnaire （SQLP） score， and urinary retention efficacy were compared among the four groups. Results There were no significant differences in bladder pressure volume， urination， recovery time of spontaneous urination， and SQLP score among the four groups before treatment （P > 0.05）. After treatment， the bladder volume and pressure of the first four groups were both increased， with those of the 5 Hz group， 10 Hz group， and 20 Hz group significantly higher than those of the control group， while the residual urine volume of the first four groups was significantly lowered， with that of the 5 Hz group， 10 Hz group， and 20 Hz group significantly lower than that of the control group （P < 0.05）， even showing an effect of dose-response； The average daily urination frequency and average single urination volume of the first four groups were all increased， with those of the 5 Hz group， 10 Hz group and 20 Hz group all significantly higher than those of the control group， while the average daily urination frequency was all reduced， with that of the 5 Hz group， 10 Hz group and 20 Hz group significantly less than the control group （P < 0.05）， even showing an effect of dose-response； The SQLP scores of the first four groups were all lowered， with those of the 5 Hz， 10 Hz and 20 Hz groups significantly lower than those of the control group （P < 0.05）， and the recovery time of spontaneous urination in the 5 Hz， 10 Hz， and 20 Hz groups was significantly shorter than that of the control group， showing an effect of dose-response； The total effective rate of urinary retention in the 5 Hz， 10 Hz and 20 Hz groups was significantly higher than that in the control group （P < 0.05）， showing an effect of dose-response. Conclusion FMS at 5 Hz， 10 Hz and 20 Hz can improve the urination function and quality of life of patients with urinary retention after stroke， showing a dose-responsive efficacy. The clinical efficacy by FMS at 20 Hz is better than that at 5 Hz and 10 Hz.