Figure 1. Ultrasound-guided SAPB and RSB. (A) Ultrasound-guided SAPB. (B) A local anesthetic was injected between the external intercostal and the SAM. (C) Ultrasound-guided RSB. (D) A local anesthetic was injected between the deep side of the RM and the posterior RS. SAPB, serratus anterior plane block; RSB, rectus sheath block; SAM, serratus anterior muscles; RM, rectus muscle; RS, rectus sheath; PL, pleural line; SR, the seventh ribs; LA, local anesthetic

From

Combination of Ultrasound-Guided Serratus Anterior Plane Block and Rectus Sheath Block Provide Analgesia for Open Hepatectomy: A Report on 3 Cases

Siyou Tan, Wenyan Chen, Yongping Liu, Lai Wei

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