Low‐dose intensive insulin therapy in patients with Acute Coronary Syndrome accompanied by Left Ventricular Failure: audit of two UK hospitals

Aims and Objectives To determine whether a low‐dose intravenous insulin regimen reduces blood glucose levels at a timely rate and associated side effects among patients with Acute Coronary Syndrome and Left Ventricular Failure. Background Induced hypoglycaemia and the associated risks have questioned the benefits of intensive insulin therapy in patients presenting with raised blood glucose levels and Acute Coronary Syndromes. Local audit data identified that patients with Acute Coronary Syndrome and Left Ventricular Failure experienced more hypoglycaemic episodes than those with Acute Coronary Syndrome alone. Consequently, a new regimen of low‐dose insulin for this group was implemented and audited over 12 months. Design Audit. Methods Thirty‐six consecutive patient notes with a diagnosis of Acute Coronary Syndrome and blood glucose of ≥10 mmol/l treated with a new insulin therapy regimen were analysed. Data were extracted using a standardised form and entered into an Excel spreadsheet for analysis. Results The mean age of the sample was 70 years with 66% of subjects being men and 50% presenting with Acute Coronary Syndrome and Left Ventricular Failure. The low‐dose regimen was effective in achieving normoglycaemia, (range 4–8 mmol/l) for a consecutive six‐hour period. This was achieved in 72% of patients and within a median time of 13 hours. Conclusion The audit suggests that a low‐dose insulin regimen can effectively stabilise blood glucose in patients presenting with both Acute Coronary Syndrome and Left Ventricular Failure. The importance of regularly monitoring blood sugar levels is vital and highlights the role of nurses in minimising patient risk and promoting safety. Relevance to practice Nurses are instrumental in the safe implementation of intensive insulin guidelines. Close monitoring of patients is essential, enabling timely adjustments to treatments and ensuring patient safety. Regular audits allow nurses to evaluate care provision and continue to drive practice forward.