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Colombo, M. ; Kirchberger, I. ; Amann, U. ; Heier, M. ; Thilo, C.* ; Kuch, B.* ; Peters, A. ; Meisinger, C.

Admission serum potassium concentration and long-term mortality in patients with acute myocardial infarction: Results from the MONICA/KORA myocardial infarction registry.

BMC Cardiovasc. Disord. 17:198 (2017)
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BACKGROUND: Conflicting with clinical practice guidelines, recent studies demonstrated that serum potassium concentrations (SPC) of ≥4.5 mEq/l were associated with increased mortality in patients with acute myocardial infarction (AMI). This study examined the association between SPC and long-term mortality following AMI in patients recruited from a population-based registry. METHODS: Included in the study were 3347 patients with AMI aged 28-74 years consecutively hospitalized between 1 January 2000 and 31 December 2008 and followed up until 31 December 2011. Patients were categorized into five SPC groups (<3.5, 3.5 to <4.0, 4.0 to <4.5, 4.5 to <5.0, and ≥5.0 mEq/l). The outcome of the study was all-cause mortality. Cox regression models adjusted for risk factors, co-morbidities and in-hospital treatment were constructed. RESULTS: In our study population, 249 patients (7.4%) had a low SPC (<3.5 mEq/l) and 134 (4.0%) patients had a high SPC (≥5.0 mEq/l). Patients with SPC of ≥5.0 mEq/l had the highest long-term mortality (29.9%) and in the adjusted model, their risk of dying was significantly increased (HR 1.46, 95% CI 1.03 to 2.07) compared to patients with SPC between 4.0 and <4.5 mEq/l. Analyses of increasing observation periods showed a trend towards a higher risk of dying in patients with SPC between 4.5 and <5.0 mEq/l. CONCLUSION: An admission SPC of ≥5.0 mEq/l might be associated with an increased mortality risk in patients with AMI. Patients with an admission SPC between 4.5 and <5.0 mEq/l might have an increased mortality risk in the first few years following AMI.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Hyperkalemia ; Hypokalemia ; Mortality ; Myocardial Infarction ; Potassium; Glomerular-filtration-rate; Ventricular-arrhythmias; Ami-registry; Outcomes; Guidelines; Risk; Fibrillation; Management; Disorders; Disease
Language english
Publication Year 2017
HGF-reported in Year 2017
e-ISSN 1471-2261
Quellenangaben Volume: 17, Issue: 1, Pages: , Article Number: 198 Supplement: ,
Publisher BioMed Central
Publishing Place London
Reviewing status Peer reviewed
Institute(s) Institute of Epidemiology (EPI)
POF-Topic(s) 30202 - Environmental Health
Research field(s) Genetics and Epidemiology
PSP Element(s) G-504000-006
G-504090-001
PubMed ID 28738785
Scopus ID 85025456659
Erfassungsdatum 2017-08-02