Elevated Troponin Levels in Acute Stroke Patients Predict Long-term Mortality

Area of Science:

• Cardiology
• Neurology
• Biomarkers

Background:

• Elevated troponin is common in acute stroke, predicting short-term mortality.
• Long-term prognosis for these patients remains unclear.

Purpose of the Study:

• To determine patient characteristics associated with troponin elevation in acute stroke.
• To assess the 5-year mortality risk in these patients.

Main Methods:

• Retrospective cohort study of 247 acute stroke patients.
• Troponin I (TnI) levels analyzed on admission.
• Data from Swedish National Stroke Register and Cause of Death Register.

Main Results:

• Troponin elevation associated with older age, prior stroke, heart failure, renal insufficiency, and stroke severity.
• Adjusted analysis showed a sustained 1.90-fold increased 5-year mortality risk (HR 1.90).

Conclusions:

• Troponin elevation in acute stroke patients is an independent predictor of long-term mortality.
• This association persists even after adjusting for confounders.