Diabetic patients with acute coronary syndromes in the UK: high risk and under treated. Results from the prospective registry of acute ischaernic syndromes in the UK (PRAIS-UK)


Bakhai, A; Collinson, J; Flather, MD; de Arenaza, DP; Shibata, C; Wang, D; Adgey, JA; (2005) Diabetic patients with acute coronary syndromes in the UK: high risk and under treated. Results from the prospective registry of acute ischaernic syndromes in the UK (PRAIS-UK). International journal of cardiology, 100 (1). pp. 79-84. ISSN 0167-5273 DOI: https://doi.org/10.1016/j.ijcard.2004.08.035

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Abstract

Objectives: Short-term randomised trials suggest that patients with diabetes mellitus (DM), admitted with acute coronary syndromes (ACS) are at increased risk of subsequent adverse events. We tested whether this hypothesis was true for an unselected population of ACS patients with and without DM admitted with non-ST elevation MI or unstable angina, in a non-trial setting over a longer term of follow-up. Methods: Prospective, centrally, coordinated multicenter registry involving 56 centers throughout the UK (half having angiographic facilities). Consecutive patients admitted with ACS without ST elevation on the presenting ECG were followed up to 6 months. A sub-group of patients were flagged with the UK Office for National Statistics and followed-up for death over 4 years. Results: Data were collected on 1046 ACS patients of whom 170 (16%) had a prior diagnosis of DM. DM patients had higher baseline comorbidities and unadjusted mortality rates at 6 months (11.8% vs. 6.4%, p=0.01). After correcting for clinical variables such as age, gender, smoking status and chest pain/ischaemic ECG changes on admission, prior history of any of myocardial infarction, heart failure, hypertension, hypercholesterolemia (on treatment), stroke or coronary revascularisation (PTCA or CABG), mortality rates for DM patients were no longer significantly raised (hazard ratio 1.35, 95% Cl: 0.79-2.30; p=0.27 at 6 months and 1.15, 95% Cl 0.72-1.83 at 4 years). 30% of diabetics were dead after 4 years of follow-up. Patients with DM were more likely to have been revascularised at 6 months and were more likely to receive ACE inhibitors. Based on the rate of recruitment and the population covered in the study, about 21,000 patients with DM will be admitted with non-ST elevation ACS each year in the UK. Conclusions: DM is common amongst patients admitted with ACS without ST elevation and is associated with significant morbidity and mortality: approximately 1 in 8 will not survive up to 6 months and 1 in 3 to 4 years. DM patients should be managed aggressively to reduce their risk of future complications. (c) 2004 Elsevier Ireland Ltd. All rights reserved.

Item Type: Article
Keywords: diabetes, acute coronary syndromes, practice patterns, clinical, outcomes, prospective registry, ST-SEGMENT ELEVATION, ACUTE MYOCARDIAL-INFARCTION, INTENSIVE, INSULIN-TREATMENT, LONG-TERM SURVIVAL, UNSTABLE ANGINA, CLINICAL-OUTCOMES, ISCHEMIC SYNDROMES, MELLITUS, MORTALITY, MANAGEMENT, Aged, Angina, Unstable, mortality, Angiotensin-Converting Enzyme Inhibitors, therapeutic use, Diabetic Angiopathies, mortality, therapy, Female, Great Britain, epidemiology, Humans, Length of Stay, Male, Multivariate Analysis, Myocardial Infarction, mortality, Prospective Studies, Registries, Risk Assessment, Survival Analysis, Syndrome
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Medical Statistics
PubMed ID: 15820289
Web of Science ID: 228772100012
URI: http://researchonline.lshtm.ac.uk/id/eprint/6357

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