การทำ pectoral nerve block เพื่อระงับความปวดหลังการผ่าตัด MRM

Abstract

This research was a Prospective Randomized Controlled Trial. The purpose of this research was to compare pain levels and the amount of opioid use after MRM surgery. A total of 60 women were randomly divided into 2 groups. The control group (n=30) received general anesthesia only, whereas the pectoral group (n=30) receives pectoral nerve block addition to general anesthesia. After surgery, all patients were treated pain by Patient controlled analgesia (PCA) with morphine. We collected pain levels at 0, 1, 6, 12 and 24 hours after surgery, total morphine consumption and incidence of adverse events such as nausea and vomiting.

The results showed that the pectoral nerve block group had a significantly lower pain level than the control at Hour 0, 1, 6, 12 but at 24 hour there was no difference. And those who received pectoral nerve block were able to significantly reduce the amount of morphine consumption after surgery. The results of this research show that Ultrasound-guided Pectoral nerve block with 0.5% Bupivacaine 20 ml in patients undergoing MRM surgery can reduce pain scores of 0, 1, 6, 12 hours after surgery and reduce morphine consumption 24 hours after surgery with statistically significant. No differences were found in the postoperative complications.