what is a pec block
PEC Block is a simple fascial block at different level of the pectoralis. muscles. PEC I Block is a block between the two pectoralis muscles, close to the. thoracoacromial artery. The interfascial administration of 5-10 mL of long acting. local anesthetic volume isenough to block lateral pectoral nerve and most of the. ramiiof the medial pectoralis nerve. The block is performed with a linear.