Abstract:Objective To determine the application value of using the thoracoscopic catheter-insertion technique in the continuous paravertebral block for releasing the postoperative pain after video-assisted thoracoscopic surgery lobectomy.Methods Participants were 68 patients after video-assisted thoracoscopic surgery (VATS) lobectomy. They were divided into two groups: experimental group (n = 35) that received thoracoscopic-guided paravertebral block, and control group (n = 33) that received ultrasound-guided paravertebral block, according to different catheterization methods. After successful catheterization, 20 mL 0.5% Ropivacaine was injected through the catheter as a load in both groups, and 0.15% Ropivacaine was continuously pumped into the paravertebral space with 2 mL/h, after the operation. The research compared the pain degree, side effects of analgesia, and pulmonary complications after the surgery in the two groups at different times.Results In the static state and cough state, there was no significant difference in VAS scores between the experimental and control groups at 2 h, 4 h, 6 h, 8 h, 12 h, 24 h, and 48 h after the operation (P > 0.05). In terms of side effects related to analgesia, there were uncomfortable symptoms such as dizziness, drowsiness, nausea, vomiting, hypotension in both the experimental and control groups, and the incidence rate in the two groups showed no statistical significance (P > 0.05). Regarding pulmonary complications, there was no significant difference between the two groups (P > 0.05). No severe complications related to anesthesia were observed.Conclusion Continuous paravertebral block using a thoracoscopic catheter-insertion technique is safe and effective for release postoperative pain after video-assisted thoracoscopic surgery lobectomy, with few complication and easy operation, without the support of ultrasound.