Clinical Research Directory

The Immune Response of Breast Cancer Patients Treated With Levobupivacaine Using Paravertebral or Superficial Chest Blocks

The use of regional anesthesia in breast surgery improves the postoperative outcome, reduces the development of infection, and weakens the perioperative immunosuppressive response associated with the response to surgical stress. The investigators hypothesize that the use of propofol / paravertebral anesthesia and analgesia will be accompanied by a decrease in serum proinflammatory cytokines and/or an increase in anti-inflammatory cytokines compared to propofol / PECS 2 anesthesia and analgesia. The research will be on 100 respondents divided into two groups. 0.5% levobupivacaine will be administered to both groups. Serum concentrations of pro- and anti-inflammatory cytokines, and lymphocyte subpopulations 1h before, 24h, and 48h after surgery will be measured. The investigators aim to compare the effect of propofol / paravertebral and propofol / PECS 2 anesthesia and analgesia on serum perioperative values of pro-inflammatory and anti-inflammatory cytokines to standardize protocols and apply the best method of perioperative analgesia in breast cancer surgery.

Local LevoBupivacaine for Pain Relief After Endoscopic Submucosal Dissection for Esophageal Lesions

Endoscopic submucosal dissection (ESD) is commonly performed for (pre)cancerous lesions in the esophagus. Following ESD, post-procedural chest pain is seen in many patients. Studies have shown that local bupivacaine (BP) into the residual submucosal layer of the resection wound after gastric ESD could reduce post-procedural pain rates effectively. Levobupivacaine (LB) is equipotent to BP regarding analgesic effects, but has a better safety profile. No studies have been performed to evaluate the efficacy of LB after esophageal ESD to reduce pain. Therefore, we want to evaluate the effect on post-procedural pain of local application of LB during esophageal ESD.