Troponin efficacy in the diagnosis of acute coronary syndrome in patients with chronic renal failure

Area of Science:

• Cardiology
• Nephrology
• Clinical Diagnostics

Background:

• Diagnostic criteria for acute myocardial infarction (AMI) using cardiac troponins (cTn) lack consensus in patients with renal dysfunction.
• Elevated cTn levels in chronic kidney disease (CKD) are linked to subclinical cardiac damage, but their diagnostic etiology is unclear.
• CKD patients with suspected acute coronary syndrome (ACS) and normal electrocardiogram (ECG) require careful evaluation to avoid missed cardiac ischemia.

Purpose of the Study:

• To evaluate the diagnostic value of cardiac troponin T (cTnT) for acute coronary syndrome (ACS) in CKD patients.
• To determine if cTnT is a reliable biomarker for cardiac ischemia in CKD patients.
• To assess the prognostic value of cTnT levels in CKD patients with suspected ACS.

Main Methods:

• Investigated cTnT levels in CKD patients with high clinical suspicion of ACS and without ST-segment elevation on ECG.
• Coronary angiography was performed to identify vessel occlusion.
• Compared cTnT values with angiography findings and patient survival rates.

Main Results:

• Coronary angiography revealed vessel occlusion in 192 patients.
• Elevated cTnT levels strongly correlated with pathological angiography results.
• Initial cTnT measurements showed significant differences in non-surviving patients, indicating prognostic value.

Conclusions:

• Cardiac troponin biomarkers are reliable for diagnosing AMI in patients with renal dysfunction.
• Elevated cTnT levels in CKD patients serve as a clear marker of cardiac ischemia.
• Careful consideration of troponin values is essential for managing cardiac ischemia in CKD populations.