A Case of Ketoacidosis Caused by the Breakdown of the Infusion Syringe During Continuous Subcutaneous Insulin Infusion

Introduction Continuous subcutaneous insulin injection (CSII) is an effective method for controlling blood glucose. However, complications include cutaneous complications (e.g., inflammation and infection) and uncontrollable blood glucose due to insulin leaks, obstruction, and technical problems, which may lead to hyperglycemia such as diabetic ketoacidosis (DKA) or hypoglycemia. However, other than islet or pancreas transplantation, CSII is the best method for controlling blood glucose.History A patient with DKA using an old-type CSII instrument was referred to our hospital.Investigation At first, we could not understand why DKA had occurred because the skin at the infusion site appeared to be in good condition. However, the syringe was found to be broken when the instrument was unlocked and the pump was removed.Conclusion To exchange older CSII instruments for newer models may be the safer alternative to prevent syringe accidents.