NSTEMI
Pronunciation: N-STEM-ee
Also written as: NSTEMI — Non-ST-Elevation Myocardial Infarction
Non-ST-elevation myocardial infarction, a type of AMI without ST elevation on ECG. Management strategy depends on risk stratification and troponin levels.
Full Definition
Non-ST-elevation myocardial infarction (NSTEMI) is a type of acute myocardial infarction characterized by myocardial necrosis evidenced by elevated cardiac biomarkers (typically troponin) but without ST-segment elevation on electrocardiography. NSTEMI typically results from partial coronary artery occlusion or severe stenosis with distal embolization. Unlike STEMI, NSTEMI management involves risk stratification using clinical scores and biomarkers to determine timing of invasive intervention. In cardiometabolic patients, NSTEMI may present with subtle symptoms and requires careful evaluation of diabetes-related factors that influence prognosis and treatment decisions, including renal function, bleeding risk, and glycemic control targets.
Usage
Usage note: Timing of intervention based on risk stratification, unlike STEMI's emergency approach.
In Context
- "NSTEMI was confirmed by elevated troponin levels despite normal ST segments on ECG." — Cardiology consultation
- "High-risk NSTEMI patients benefit from early invasive strategy within 24 hours." — Treatment protocol