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The effects of intravenous insulin infusions on early mortality for patients with acute coronary syndromes who present with hyperglycaemia: A matched propensity analysis using data from the MINAP database 2008–2012

John Birkhead, Clive Weston Orcid Logo, Adam Timmis, Ruoling Chen

European Heart Journal: Acute Cardiovascular Care, Volume: 4, Issue: 4, Pages: 344 - 352

Swansea University Author: Clive Weston Orcid Logo

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Abstract

We compared 7 day survival for patients receiving IV insulin infusion (IVII) with those receiving routine care to control admission hyperglycaemia (>=11 mmol/l) in acute coronary syndrome.We used matched propensity analysis to examine observational data (2008-2012) from the Myocardial Ischaemia N...

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Published in: European Heart Journal: Acute Cardiovascular Care
ISSN: 2048-8726 2048-8734
Published: 2015
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa18433
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Abstract: We compared 7 day survival for patients receiving IV insulin infusion (IVII) with those receiving routine care to control admission hyperglycaemia (>=11 mmol/l) in acute coronary syndrome.We used matched propensity analysis to examine observational data (2008-2012) from the Myocardial Ischaemia National Audit Project. We matched 5974 pairs of patients. We separately examined outcomes for ST elevation (STEMI) and non ST segment elevation (NSTEMI) infarctions, and those without known diabetes and those with type 2 diabetes. Survival benefit from the use of IVII was seen only in patients with STEMI not known to have diabetes at admission (adjusted hazard ratio (HR) 0.77 (95% confidence interval (CI) 0.64-0.92), p=0.005). Those with STEMI and existing type 2 diabetes who received IVII showed similar outcomes to routine care (HR 0.99 (95% CI 0.80-1.23), p=0.931). In patients with NSTEMI IVII was associated with significantly worse adjusted 7 day survival outcome than routine care, regardless of diabetes status; for those without known diabetes, HR 1.50 (95% CI 1.04-2.16), p=0.029, and for those with type 2 diabetes, HR 1.35 (95% CI 1.08-1.70), p=0.010.As used in current clinical practice to treat hyperglycaemia in acute coronary syndromes, IVII appears to be of benefit only for patients with STEMI who are not known to have diabetes. IVII is associated with adverse early outcomes in patients with NSTEMI.
Keywords: Acute Coronary syndrome; myocardial infarction; insulin; hyperglycaemia
College: Faculty of Medicine, Health and Life Sciences
Issue: 4
Start Page: 344
End Page: 352