efficacy of ropivacaine in ultrasound guided pectoralis nerve block 2 versus serratus anterior plane block for post operative analgesia in breast surgeries: a prospective, comparative study

Background: breast surgeries can be associated with acute postoperative pain which if left untreated might lead to chronic pain therefore pre-emptive treatment post surgery can be favourable. the aim of our study was to evaluate the analgesic efficacy of pecs 2 compared to sab to reduce post operative pain in breast surgeries done under general anaesthesia.methods: a total of 50 patients belonging to asa 1 & 2 undergoing elective breast surgery were randomly assigned into two groups. pectoralis nerve block 2 group received 25ml of 0.5% ropivacaine and serratus anterior plane block group received 25ml of 0.5% ropivacaine under ultrasound guidance post induction. the primary outcome was to compare the duration of post operative analgesia with pecs 2 and sab. other outcome parameters observed were total rescue analgesic requirement, change in post operative hemodynamic parameters and complications if any. results: there was a significant difference in duration of post operative analgesia between two groups with mean duration of post operative analgesia in pecs 2 being 510±32.6mins and sab being 316±26.5mins (p=0.036). the vas score as well as number of rescue analgesic requirement with pecs 2 was lesser when compared to sab. conclusion: ropivacaine in ultrasound guided pecs 2 block provided superior analgesic profile when compared to sab.