To Compare the Analgesic Effects of Different Nerve Block Analgesia Methods in Thoracoscopic Surgery

120 patients undergoing elective thoracoscopic surgery were randomly divided into ESPB group (E group, n=30), TPVB group (T group, n=30), ESPB combine with TPVB group (ET group, n=30), ICNB group (I group, n=30). Patients in ESPB group underwent erector spinal block under ultrasound after anesthesia induction; Patients in TPVB group received thoracic paravertebral nerve block after anesthesia induction; Patients in ESPB group combined with TPVB group received thoracic paravertebral nerve block combined with erectoralis muscle block after anesthesia induction; Patients in INB group received intraoperative intercostal nerve block by the operator. All groups of patients received postoperative controlled intravenous analgesia (PCIA). Visual analogue scale (VAS) was used to evaluate the degree of pain 1h (T1), 24h (T2) and 48h (T3) after surgery. The mean arterial pressure (MAP), heart rate at T1-T3 were recorded, as well as the number of effective analgesic pump compression, the amount of sufentanil and the number of relief analgesia within 48h after surgery. The occurrence of postoperative adverse reactions such as nausea, vomiting, dizziness, retention time of thoracic drainage tube, postoperative hospital stay and postoperative pulmonary complications (pneumonia, atelectasis, pleural effusion, respiratory failure, etc.) were recorded.

Inclusion criteria

• (1) American Society of Anesthesiologists (ASA) Grade I-II; (2) Age: 18-70 years old (3) double-hole thoracic surgery was performed; (4) Agree to participate in this study and sign the informed consent.

Exclusion criteria

• (1) People who are allergic to anesthetics used in this study; (2) Patients with coagulation disorders (3) patients with severe heart disease, liver or renal insufficiency; (4) have a history of chronic pain or chronic opioid users (5) have a co-existing mental illness and are not fully capable of cooperating