Heisei Memorial Hospital, Kashihara City, Nara, Japan.
Clin J Pain. 2014 Jul;30(7):565-70. doi: 10.1097/AJP.0b013e31829ea151.
This study aimed to evaluate the effectiveness of transcutaneous electrical nerve stimulation (TENS) for treatment of postoperative pain and pulmonary functions (vital capacity [VC]; cough peak flow, [CPF]) in patients who underwent abdominal surgery.
Forty-eight patients were randomly allocated to receive TENS, placebo TENS, or no TENS (control) 1 hour a day for 3 days postoperatively. A 0-100 visual analog scale was used to assess pain at preintervention, mid-intervention, and postintervention on the third postoperative day. Pulmonary functions (VC, CPF) were evaluated by spirometer at preoperation (baseline) and at preintervention, mid-intervention, and postintervention on the third postoperative day. One-way analysis of variance was used to assess differences between groups at baseline. Mann-Whitney test was used to compare the control group with the placebo-TENS and TENS group, at each assessment timepoint. Two-way analysis of variance and Bonferroni post hoc test assessed the difference between the 2 (placebo-TENS×TENS) groups. A value of P<0.01 was considered statistically significant.
The baselines were not significantly different between any groups. The TENS group had significant reductions in postoperative pain compared with the placebo group (P<0.01) and control group (P<0.01). There was also improvement in pulmonary functions (VC, CPF) at mid-TENS and post-TENS, but not in the placebo-TENS (P<0.01) or control groups (P<0.01).
TENS is a valuable treatment to alleviate postoperative pain and improve pulmonary functions (ie, VC, CPF) in patients following abdominal surgery.
本研究旨在评估经皮神经电刺激（TENS）治疗腹部手术后患者术后疼痛和肺功能（肺活量[VC]；咳嗽峰流速[CPF]）的效果。
48 例患者随机分为 TENS 组、假 TENS 组和无 TENS（对照组），术后每天接受 TENS 治疗 1 小时，共 3 天。采用 0-100 视觉模拟评分法在术前、干预中期和术后第 3 天评估疼痛。使用肺活量计在术前（基线）和术后第 3 天的术前、干预中期和干预后评估肺功能（VC、CPF）。采用单因素方差分析评估各组在基线时的差异。采用 Mann-Whitney 检验比较对照组与假 TENS 组和 TENS 组在各评估时间点的差异。采用双向方差分析和 Bonferroni 事后检验评估 2 个（假 TENS×TENS）组之间的差异。P<0.01 被认为具有统计学意义。
各组基线无显著差异。与假 TENS 组（P<0.01）和对照组（P<0.01）相比，TENS 组术后疼痛明显减轻。TENS 组在 TENS 中和 TENS 后肺功能（VC、CPF）也有所改善，但假 TENS 组（P<0.01）和对照组（P<0.01）无改善。
TENS 是一种有价值的治疗方法，可减轻腹部手术后患者的术后疼痛并改善肺功能（即 VC、CPF）。
