Troponin Cut-Offs for Acute Myocardial Infarction in Patients with Impaired Renal Function-A Systematic Review and Meta-Analysis
- PMID: 35204367
- PMCID: PMC8871519
- DOI: 10.3390/diagnostics12020276
Troponin Cut-Offs for Acute Myocardial Infarction in Patients with Impaired Renal Function-A Systematic Review and Meta-Analysis
Abstract
Identifying acute myocardial infarction in patients with renal disease is notoriously difficult, due to atypical presentation and chronically elevated troponin. The aim of this study was to identify a specific troponin T/troponin I cut-off value for diagnosis of acute myocardial infarction in patients with renal impairment via meta-analysis. Two investigators screened 2590 publications from MEDLINE, Embase, PubMed, Web of Science, and the Cochrane library. Only studies that investigated alternative cut-offs according to renal impairment were included. Fifteen articles fulfilled the inclusion criteria. Six studies were combined for meta-analysis. The manufacturer's upper reference level for troponin T is 14 ng/L. Based on the meta-analyses, cut-off values for troponin in patients with renal impairment with myocardial infarction was 42 ng/L for troponin I and 48 ng/L for troponin T. For patients on dialysis the troponin T cut-off is even higher at 239 ng/L. A troponin I cut-off value for dialysis patients could not be established due to lack of data. The 15 studies analyzed showed considerable diversity in study design, study population, and the definition of myocardial infarction. Further studies are needed to define a reliable troponin cut-off value for patients with kidney disease, especially in dialysis patients, and to allow necessary subanalysis.
Keywords: acute myocardial infarction; chronic kidney disease; troponin.
Conflict of interest statement
The authors declare no conflict of interest.
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