Ultrasound-guided peripheral nerve blocks for anterior cutaneous nerve entrapment syndrome after robot-assisted gastrectomy: A case report

Figure 1 Surgical wound sites and abdominal pain location. The pain location coincides (white dashed circle) with the surgical wound (port incision).

Figure 2 Ultrasound image. A: Ultrasound image of the pain location. A seroma and operation scar were present under the surgical wound; B: Ultrasound-guided rectus sheath block. The rectal sheath block results in hydrodissection of the rectus abdominis muscle and the rectal sheath; C: Ultrasound-guided transverse abdominis plane block. The transverse abdominis plane block results in hydrodissection between the internal oblique and transverse abdominis muscles.