Effects of ultrasound-guided nerve block combined with PCIA analgesia on postoperative pain, inflammatory response, hospital stay, and adverse reactions in breast cancer surgery

Ultrasound-guided nerve block combined with PCIA effectively reduced analgesia pump usage, alleviated postoperative pain, and suppressed inflammatory marker expression. However, it showed minimal impact on hospital stay and adverse reactions, making it a promising strategy for postoperative pain management in breast cancer surgery.