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We present a case of an open surgical repair of an infraumbilical hernia, which was performed on a 45-year-old man categorised as American Society of Anesthesiologists class 4; he weighed 107 kg, and had a body mass index of 34.2 kg/m2 and nonischaemic cardiomyopathy (left ventricular ejection fraction of 20%). Due to the patient's significant perioperative risks, the surgery was performed with the patient under ultrasonography-guided bilateral rectus sheath blocks; 15 mL of 1% lignocaine and 10 mL of 0.5% bupivacaine were deposited in the space between the rectus abdominis and posterior rectus sheath. The patient tolerated the surgery with minimal further sedation and additional analgesia. Rectus sheath block is a useful regional technique for periumbilical surgery, allowing surgery in highrisk patients while avoiding general anaesthesia and central neuraxial blockade. The use of real-time ultrasonographic guidance may reduce risks of peritoneal puncture, bleeding and visceral injury, while potentially increasing the rate of success.

Bilateral rectus sheath blocks as the single anaesthetic technique for an open infraumbilical hernia repair