The feasibility and safety of ventral hernia repairs under local anaesthesia: a systematic review.

Abstract

Background: Ventral hernias represent a significant global healthcare burden. Repair under local anaesthesia (LA) provides benefits to patients, hospitals and economies. While inguinal hernia repair under LA has been established, this has not translated to other abdominal wall hernias. This systematic review evaluates the feasibility, safety, and efficacy of performing these repairs under LA.

Methods: A systematic review was conducted using OVID^® EMBASE and MEDLINE to review articles published between 1966 and 2023. Thirty-three papers were included examining variables such as type of hernia, complications, cost-effectiveness, LA used and length of stay. All papers were quality assessed using the ROBINS-I tool. Papers assessing inguinal hernias were excluded.

Results: 13,491 patients underwent ventral hernia repair under LA. Complication rates for LA repairs are low, with wound infections and hematomas ranging from 0.3 to 2%. Recurrence rates were also low (0.3-2.5%). Early mobilisation and same-day discharge were notable benefits, with over 97% of patients ambulatory within hours. Postoperative pain was minimal, contributing to high patient satisfaction rates (90-97%). LA repairs proved especially beneficial for high-risk groups, including elderly and frail patients. However, these findings were only seen in hernia defects less than 5 cm. Heterogeneity among study populations, small sample sizes, and lack of standardisation in LA administration were noted.

Conclusion: This review supports the broader implementation of LA for ventral hernia repairs in small defects (< 5 cm), demonstrating its safety, feasibility, and patient acceptability. Careful patient selection for standardisation of best practices for LA hernia repairs offers the potential for significant cost-savings with overall favourable outcomes.