Transversus Thoracis Muscle Plane Block

Figure 2

Patient positioning and ultrasound images in the TTP block. (a) Anterior chest wall of patient after cardiac surgery. The thoracic intercostal spaces are marked. The injection site is indicated by an asterisk. (b) The operator stands beside the patient with ultrasound machine on opposite side. The ultrasound probe is placed longitudinally to the sternum. (c) Ultrasound image after TTP block. The local anesthetic spreads uniformly between the IM and TTM. The pleura is displaced downwards. IM, internal intercostal muscle; TTM, transversus thoracis muscle; LA, local anesthetics.

(a)

(b)

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