Dilutional local anaesthetic techniques in oncoplastic breast surgery and potential benefits during the COVID-19 pandemic and beyond.

Batt, Jeremy; Cook, Nicola; Nadeem, Muhammad; Sahu, Ajay

INTRODUCTION COVID-19 has changed the approach to operating on breast cancer for the benefit of patients, staff and the general population. One approach involves the switch from operating under general to local anaesthetic. We assess whether diluational local anaesthetic is as effective as the current standard approach. METHODS Postoperative pain was recorded in prospective, consecutive patients undergoing wide local excision under dilutional local anaesthetic (concentration < 1mg/ml). Pain scores were documented at 0, 30 and 60 minutes and compared to a control group consisting of combined general with local anaesthetic. RESULTS Pain significantly increased in the control group during the postoperative recovery. This was not seen in the dilutional local anaesthetic group that was non-inferior to the standard approach at 0, 30 and 60 minutes. CONCLUSION Dilutional local anaesthetic provides a safe and effective alternative approach to operating on breast cancer patients whilst avoiding risky general anaesthetic in a COVID-19 pandemic environment.