目的 探讨骶神经调节测试评估阶段临时电极及自固定倒齿状（Tined Lead）电极的疗效及安全性。方法 将34例慢性盆底功能障碍患者按电极置入方法不同分为临时电极组（n=16）和自固定Tined Lead电极组（n=18），并进行术后两种电极临时刺激测试。在测试期记录排尿排便日记，进行相关尿动力学参数测定。结果 急迫性尿失禁患者中，有43%症状改善；尿频尿急患者中有35%症状改善；10%的急迫性尿失禁/尿频尿急患者治愈。临时电极组患者排尿排便自我感觉的改善率为32.2%，自固定Tined Lead电极组为38.2%，两组差异有统计学意义（P＜0.05）。盆底疼痛综合征/间质性膀胱炎患者疼痛及排尿容量改善率在临时电极组与自固定Tined Lead电极组间的差异无统计学意义（P>0.05）。临时电极组有4例发生电极移位，自固定Tined Lead组有1例发生电极移位。结论 骶神经调节是一种创伤小、安全、有效的治疗慢性盆底功能障碍的方法, 采用Tined Lead电极可防止电极移位，提高测试的成功率及疗效。

Objective To investigate the therapeutic effect and safety of temporary electrode and Tined Lead electrode in sacral neuromodulation evaluation. Methods Thirty-four patients with chronic pelvic floor dysfunction were divided into temporary electrode group (n=16) and Tined Lead electrode group (n=18), and temporary stimulation tests were performed after electrode placement. The conditions of voiding and defecation were recorded every day, and related urodynamic parameters were measured. Results The symptoms improved in 43% patients with urgent incontinence and 35% patients with urinary frequency and urgency, and 10% patients with urgent incontinence or urinary frequency and urgency were cured. There were significant differences in the rates of self-perceived improvement of voiding and defecation between temporary electrode group and Tined Lead electrode group (32.2% vs 38.2%, P＜0.05). There was no significant difference in the rates of improvement of pain and voiding volume in patients with pelvic floor pain syndrome and interstitial cystitis between two groups (P>0.05). Electrode shift took place in 4 patients in temporary electrode group and in 1 patient in Tined Lead electrode group. Conclusion Sacral neuromodulation is a safe, minimally invasive and effective method for treatment of chronic pelvic floor dysfunction, and Tined Lead electrode may prevent the electrode shift, increase the rate of success, and improve the therapeutic effect.