Review Article

Transversus Thoracis Muscle Plane Block

Figure 3

(a) The distribution of local anesthetics during the transversus thoracis plane (TTP) block. PM, pectoralis major; IM, internal intercostal muscle; TTM, transversus thoracis muscle
(b) The distribution of local anesthetics during the parasternal intercostal (PSI) block. PM, pectoralis major; IM, internal intercostal muscle; TTM, transversus thoracis muscle