IRCT2013071610841N5 IRCT 2016-04-23 Vice chancellor for research Hamadan University Of Medical Science Comparition of transcutaneous electrical nerve stimulation and epidural analgesia in labour pain Comparition effect of transcutaneous electrical nerve stimulation and epidural analgesia with lidocaine 1% on pain and prognosis of labour 2014-07-02 anticipated 105 Complete https://irct.ir/trial/11267 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Used, Assignment: Parallel, Purpose: Prevention. 1-2 delivery. Intervention 1: In Epidural group ,Epidural catheter is placed in active phase of labour(cervical dilation=5cm) and 10 ml lidocaine %1plus 1ml sufentanil is injected.In secondary stage,maximum 15 ml lidocaine %1is injected by epidural catheter. Intervention 2: In TENS group two pairs electrodes are placed in T0-L1&S2-S4 nerve roots. In first and second stages of labour electrodes connected to TENS device and set by 10-18 MA stimulation and 100 HZ frequency for 30 minutes . Intervention 3: In control group, any methods of analgesia is used but TENS electrodes are placed .