Participants in group PCIA will only receive intravenous patient controlled analgesia after surgery. Participants in group TAPB will receive transversus abdominis plane block guided by ultrasound at the end of the surgery and also receive intravenous patient controlled analgesia after surgery.
#TRAVELL AND SIMONS PAIN EMG OF TRANSVERSE ABDOMINIS TRIAL#
This study is a prospective, randomized, controlled clinical trial guided by the standard of good clinical practice (GCP), and eligible participants are divided into two groups: group TAPB and group PCIA, and assess the outcomes of the incidence of acute and chronic postoperative pain and the effects of the two methods on the quality of lives of patients undergo inguinal hernia repair. All potentially eligible participants will be asked to give written informed consent before they are enrolled in this study. This study was approved by the Medical Ethics Committee of the First Affiliated Hospital of Chongqing Medical University. So the investigators conduct the randomized controlled trial to investigate whether transversus abdominis plane block combined with intravenous patient controlled analgesia is superior to intravenous patient controlled analgesia in improving the quality of life and reducing the incidence of chronic post-surgical pain.
TABP can block the two mainly nerve (iliohypogastric nerve, ilioinguinal nerve) for inguinal hernia repair and so it seems to have a good effects to relieve the pain of inguinal hernia repair. Transverse abdominis plane block(TABP),which injecting local anesthetics into the interval between obliquus internus abdominis muscle and transverse abdominal muscle could block the abdominal nerve and could alleviate the pain postoperatively. European hernia society has proposed that local infiltration anesthesia was suggested to all patients without any contraindications who undergo inguinal hernia repair. Meanwhile, the investigators also found the incidence of CPSP of herniorrhaphy was 37.8% among the patients with PCA, and the incidence of neuropathic pain was 37.5% in these patients with CPSP. The incidence of post-operative pain after open inguinal hernia repair is high according to a a larger-sample epidemic research. Why Should I Register and Submit Results?.