Severe lactic acidosis and rhabdomyolysis following metformin and ramipril overdose
1 Department of Anaesthesia and Intensive Care, St Peter's Hospital, Guildford Road, Chertsey KT16 0PZ, UK
2 Department of Medicine, St Helier's Hospital, Wrythe Lane, Carshalton SM5 1AA, UK
* Corresponding author: Department of Anaesthesia and Intensive Care, St Peter's Hospital, Guildford Road, Chertsey KT16 0PZ, UK. E-mail: marylyse{at}doctors.org.uk
We report the case of a 46-yr-old male who developed severe lactic acidosis, cardiorespiratory arrest, and rhabdomyolysis following an overdose of metformin and ramipril. The lactic acidosis was successfully treated with early high-volume continuous veno-venous haemofiltration. Rhabdomyolysis and lower limb compartment syndrome developed later. The patient otherwise made a good recovery. We discuss the management of severe lactic acidosis secondary to metformin overdose and the association with rhabdomyolysis.
Keywords: blood, haemofiltration; complications, acidosis, lactic; complications, rhabdomyolysis; compartment syndrome; metformin