Montreal—Pectoral blocks and paravertebral blocks are comparable with respect to postoperative analgesic efficacy in breast surgery.
However, the researchers noted that paravertebral blocks may be associated with potentially serious block-related complications such as pneumothorax, a phenomenon that may make the pectoral block more attractive.
“It’s been a few years now since pectoral blocks were invented, but it’s interesting to see that in clinical practice there’s