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Effects of intensive glycaemic control on ischaemic heart disease: analysis of data from the randomised, controlled ACCORD trial.


ABSTRACT: BACKGROUND:Hyperglycaemia could substantially increase the risk of ischaemic heart disease in patients with type 2 diabetes. We investigated whether intensive lowering of glucose concentrations affects risk. METHODS:We assessed 10,251 adults aged 40-79 years with established type 2 diabetes, mean glycated haemoglobin A1c (HbA1c) concentration of 67 mmol/mol (8·3%), and risk factors for ischaemic heart disease enrolled in the ACCORD trial. Participants were assigned to intensive or standard therapy (target HbA1c less than 42 or 53-63 mmol/mol [less than 6·0% or 7·0-7·9%], respectively). We assessed fatal or non-fatal myocardial infarction, coronary revascularisation, unstable angina, and new angina during active treatment (mean 3·7 years) plus a further mean 1·2 years. This trial is registered with ClinicalTrials.gov, number NCT00000620. FINDINGS:Myocardial infarction was less frequent in the intensive than in the standard therapy group during active treatment (hazard ratio [HR] 0·80, 95% CI 0·67-0·96; p=0·015) and overall (0·84, 0·72-0·97; p=0·02). Findings were similar for combined myocardial infarction, coronary revascularisation, and unstable angina (active treatment HR 0·89, 95% CI 0·79-0·99, overall 0·87 0·79-0·96) and for coronary revascularisation alone (0·84, 0·75-0·94) and unstable angina alone (0·81, 0·67-0·97) during full follow-up. With lowest achieved HbA1C concentrations included as a time-dependent covariate, all hazards became non-significant. INTERPRETATION:Raised glucose concentration is a modifiable risk factor for ischaemic heart disease in middle-aged people with type 2 diabetes and other cardiovascular risk factors. FUNDING:National Heart, Lung, and Blood Institute, National Institute of Diabetes and Digestive and Kidney Diseases, National Institute on Aging, National Eye Intitute, and Centers for Disease Control and Prevention.

SUBMITTER: Gerstein HC 

PROVIDER: S-EPMC4397008 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature

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Effects of intensive glycaemic control on ischaemic heart disease: analysis of data from the randomised, controlled ACCORD trial.

Gerstein Hertzel C HC   Miller Michael E ME   Ismail-Beigi Faramarz F   Largay Joe J   McDonald Charlotte C   Lochnan Heather A HA   Booth Gillian L GL  

Lancet (London, England) 20140731 9958


<h4>Background</h4>Hyperglycaemia could substantially increase the risk of ischaemic heart disease in patients with type 2 diabetes. We investigated whether intensive lowering of glucose concentrations affects risk.<h4>Methods</h4>We assessed 10,251 adults aged 40-79 years with established type 2 diabetes, mean glycated haemoglobin A1c (HbA1c) concentration of 67 mmol/mol (8·3%), and risk factors for ischaemic heart disease enrolled in the ACCORD trial. Participants were assigned to intensive or  ...[more]

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