Knowledge, attitudes, and practices on the use of local anaesthesia in the Emergency Department

Local anaesthesia (LA) is frequently used in the Emergency Department (ED). Local anaesthetic systemic toxicity (LAST) is a potentially fatal complication associated with its use. It is assumed that all doctors administering LA are trained in all aspects of its use including the management of LAST.

A prospective, multicentre cross-sectional study was conducted at three academic EDs in Gauteng. Doctors working in the ED completed an online questionnaire designed to assess knowledge, attitudes and practices regarding the use of LA as well as the recognition and management of LAST.

A total of 94 completed questionnaires were analysed. Of these, 44% of participants had graduated from medical school less than 5 years ago, and 72% had less than 5 years of experience working in the ED. The overall mean knowledge score percentage for the safe use of LA was 48.2%. The overall mean knowledge score percentage for recognition and management of LAST was 56.7%. A total of 78% of participants knew that intravenous intralipid emulsion (ILE) therapy is needed in managing LAST; however, only 25% of participants knew where to access ILE and only 33% knew how to use it.

The overall level of knowledge on LA and the management of LAST among doctors working in the ED is low. There is also an apparent lack of awareness of the potential for toxicity despite frequent use of LA. Although the occurrence of LAST is rare, our findings highlight an obligation for continuous education on local anaesthesia and the management of LAST.

The result of this research indicates a gap in training regarding the potential for toxicity of local anaesthesia, recognition of systemic toxicity, and the management thereof. These findings suggest the possibility of misdiagnosis and under reporting of LAST.