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Prognostic Implications of Type 2 Diabetes Mellitus in Ischemic and Nonischemic Heart Failure
Karolinska Institute, Sweden.
Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.ORCID iD: 0000-0001-6353-8041
Karolinska Institute, Sweden.
KTH Royal Institute Technology, Sweden.
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2016 (English)In: Journal of the American College of Cardiology, ISSN 0735-1097, E-ISSN 1558-3597, Vol. 68, no 13, 1404-1416 p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND Heart failure (HF) is a common and serious complication in type 2 diabetes mellitus (T2DM). The prognosis of ischemic HF and impact of revascularization in such patients have not been investigated fully in a patient population representing everyday practice. OBJECTIVES This study examined the impact of ischemic versus nonischemic HF and previous revascularization on long-term prognosis in an unselected population of patients with and without T2DM. METHODS Patients stratified by diabetes status and ischemic or nonischemic HF and history of revascularization in the Swedish Heart Failure Registry (SwedeHF) from 2003 to 2011 were followed up for mortality predictors and longevity. A propensity score analysis was applied to evaluate the impact of previous revascularization. RESULTS Among 35,163 HF patients, those with T2DM were younger, and 90% had 1 or more associated comorbidities. Ischemic heart disease (IHD) occurred in 62% of patients with T2DM and 47% of those without T2DM, of whom 53% and 48%, respectively, had previously undergone revascularization. T2DM predicted mortality regardless of the presence of IHD, with adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) of 1.40 (1.33 to 1.46) and 1.30 (1.22 to 1.39) in those with and without IHD, respectively. Patients with both T2DM and IHD had the highest mortality, which was further accentuated by the absence of previous revascularization (adjusted HR: 0.82 in favor of such treatment; 95% CI: 0.75 to 0.91). Propensity score adjustment did not change these results (HR: 0.87; 95% CI: 0.78 to 0.96). Revascularization did not abolish the impact of T2DM, which predicted mortality in those with (HR: 1.36; 95% CI: 1.24 to 1.48) and without (HR: 1.45; 95% CI: 1.33 to 1.56) a history of revascularization. CONCLUSIONS Ninety percent of HF patients with T2DM have preventable comorbidities. IHD in patients with T2DM had an especially negative influence on mortality, an impact that was beneficially influenced by previous revascularization. (C) 2016 by the American College of Cardiology Foundation.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE INC , 2016. Vol. 68, no 13, 1404-1416 p.
Keyword [en]
heart failure; ischemic heart disease; prognosis; revascularization; type 2 diabetes mellitus
National Category
Cardiac and Cardiovascular Systems
Identifiers
URN: urn:nbn:se:liu:diva-132681DOI: 10.1016/j.jacc.2016.06.061ISI: 000385933800005PubMedID: 27659462OAI: oai:DiVA.org:liu-132681DiVA: diva2:1048195
Note

Funding Agencies|Swedish Heart-Lung Foundation; Stockholm County Council; Karolinska Institute; Linkoping University; AstraZeneca Inc.; AFA Insurance; Swedish Diabetes Foundation

Available from: 2016-11-21 Created: 2016-11-18 Last updated: 2016-11-21

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Dahlström, Ulf
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Division of Cardiovascular MedicineFaculty of Medicine and Health SciencesDepartment of Cardiology in Linköping
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