Post Operative Pain Clinical Trial
Official title:
Efficacy of Thoracic Paravertebral Block With Methylene Blue Visual Confirmation in the Management of Postoperative Pain After Video-assisted Thoracoscopic Lobectomy
The goal of this study is to compare the efficacy in controlling postoperative pain of paravertebral block (PVB) with methylene blue visual confirmation and thoracic epidural anesthesia (TEA). This is a single center, parallel-group, prospective study. Patients will be randomly assigned in a 1:1 ratio to receive either PVB or TEA. Primary end-point is pain relief measured with Postoperative Numeric Rating Scale. The secondary end-points are time to perform TEA and PVB, total opioid consumption, postoperative outcomes.
The management of postoperative pain in patients undergoing thoracoscopic lobectomy is a fundamental part of the process of recovery. Uncontrolled thoracic pain in the early postoperative period may interfere with the mobilization of the patients, leading to increased morbidity and reduction in the quality of life. Thoracic paravertebral block (PVB) is an effective strategy for controlling postoperative pain after video-assisted thoracoscopic (VATS) lobectomy, but it may be subjected to a high rate of failure due to incorrect identification of the site of local anesthetic injection. Thoracic epidural anesthesia (TEA) is considered a reliable technique for regional thoracic anesthesia, however potential side effects may limit its use. Herein the investigators reported a new technique using methylene blue as a visual confirmation of the correct anesthetic diffusion during PVB. Then, the investigators will compare the efficacy of methylene blue PVB with TEA for the management of postoperative pain in patients undergoing VATS lobectomy. This is a single center, parallel-group, prospective study. Participants will be randomly assigned in a 1:1 ratio to receive either PVB with methylene blue or TEA. All participants will receive postoperatively intravenous acetaminophen as additional analgesics and intravenous tramadol as rescue analgesic. Primary end-point is pain relief measured with Postoperative Numeric Rating Scale at at 1, 12, 24, 48 hours postoperatively. The secondary end-points are: (i) time to perform TEA and PVB, (ii) total opioid consumption, (iii) postoperative outcomes (including complications, chest drainage duration and length of hospital stay). ;
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