Heah S M, Ho Y H, Tan M, Leong A F
Department of Colorectal Surgery, Singapore General Hospital.
Dis Colon Rectum. 1997 Feb;40(2):187-9. doi: 10.1007/BF02054986.
The effects of biofeedback (BF) on pain relief and anorectal physiology in patients with levator ani syndrome (LAS) were prospectively studied.
Sixteen consecutive patients (9 men, 7 women; mean age, 50.1 (range, 39-66) years) with LAS were treated with BF from July 1993 to October 1995. Mean duration of pain was 32.5 (standard error of the mean, 6.7) months. All underwent a full course of BF using a manometric balloon technique. Mean follow-up was 12.8 (standard error of the mean, 2.6) months. Pain score and anorectal physiology tests were administered prospectively by an independent observer before and after BF.
After BF, the pain score was significantly improved (before BF: median, 8 (range, 6-10); after BF: median, 2 (range, 1-4); P < 0.02). Analgesic requirements were also significantly reduced (all 16 patients needed nonsteroidal anti-inflammatory drugs (NSAID) before BF; only two patients needed NSAID after BF; P < 0.03). There were no significant changes to the anorectal physiology parameters after BF. To date, there have been no side effects or regressions.
Although BF had a negligible effect on anorectal physiologic measurements in LAS, it was effective in pain relief, with no side effects.
前瞻性研究生物反馈（BF）对耻骨直肠肌综合征（LAS）患者疼痛缓解及肛门直肠生理功能的影响。
1993年7月至1995年10月，对16例连续性LAS患者（9例男性，7例女性；平均年龄50.1岁（范围39 - 66岁））采用BF治疗。平均疼痛持续时间为32.5个月（均数标准误为6.7个月）。所有患者均采用测压气囊技术完成一个完整疗程的BF治疗。平均随访时间为12.8个月（均数标准误为2.6个月）。在BF治疗前后，由一名独立观察者前瞻性地进行疼痛评分及肛门直肠生理功能测试。
BF治疗后，疼痛评分显著改善（BF治疗前：中位数为8（范围6 - 10）；BF治疗后：中位数为2（范围1 - 4）；P < 0.02）。镇痛药物需求也显著减少（BF治疗前所有16例患者均需要非甾体抗炎药（NSAID）；BF治疗后仅2例患者需要NSAID；P < 0.03）。BF治疗后肛门直肠生理功能参数无显著变化。迄今为止，未出现副作用或病情复发。
虽然BF对LAS患者的肛门直肠生理测量影响可忽略不计，但在缓解疼痛方面有效，且无副作用。
