Finding into death of Matthew John George

45y · Male·Global cerebral hypoxia following cardio-respiratory collapse due to anaphylaxis following administration of flucloxacillin in a man with diabetes mellitus, widespread sepsis and ischaemic heart disease

A 45-year-old man with poorly controlled diabetes, ischaemic heart disease, and recurrent lower limb infections died from anaphylaxis to intravenously administered flucloxacillin. He presented with sepsis secondary to a Staphylococcus aureus foot infection with bacteraemia. Blood cultures confirmed life-threatening infection on day 2-3 of admission. After 72 hours of meropenem without clinical improvement and overnight fever spikes, the treating physician (Dr C.) ordered flucloxacillin without re-consulting the infectious diseases specialist (Dr S.) who had previously only suggested it as a 'possible future treatment' pending further investigation. The drug was given in a general ward without cardiac monitoring. Immediate anaphylaxis ensued with cardiopulmonary arrest. The coroner found the death possibly preventable had Dr C. either chosen an alternative antibiotic or proceeded with flucloxacillin only with specialist input regarding appropriate dosing, penicillin challenge protocol, and a monitored critical care setting. Key clinical lessons: documented drug allergies require careful verification and communication; antibiotic stewardship decisions in complex sepsis cases need specialist re-consultation before implementation; anaphylaxis management requires immediate IM adrenaline and appropriate monitoring environment.