Fig. 3From: Postoperative pain treatment with erector spinae plane block and pectoralis nerve blocks in patients undergoing mitral/tricuspid valve repair — a randomized controlled trialPectoralis nerves block type II. LA – local anesthetic, NS – needle shaft, PM – pectoralis major muscle, Pm – pectoralis minor muscle, R4 – fourth rib, SA – serratus anterior muscleBack to article page