4 – Scanning technique with the ultrasound guided ilioinguinal/iliohypogastric nerve block

– Place the patient supine

– Identify the anterior superior iliac spine (ASIS) with palpation and ultrasound

– Place the high-frequency linear probe on the line connecting the ASIS and the umbilicus and with the lateral end of the probe just superior to the ASIS

– Identify the layers of the abdominal wall and the iliohypogastric and ilioinguinal nerves and the deep circumflex artery inside the neurovascular fascial plane between the transverse abdominis and the internal abdominal oblique (see next page)

– Insert the needle with in-plane technique from the lateral end of the probe and advance the needle tip to the neurovascular plane. Inject 15 mL of local anaesthetic