Acute Coronary Syndrome ACS 2001.12.14

Acute Coronary Syndrome (ACS) 2001.12.14

ACS typically consists of three components: ① unstable angina (UA); ② ST-segment elevation myocardial infarction (STEMI); ③ non-ST-segment elevation myocardial infarction (NSTEMI). STEMI has a 92%–95% probability of being accompanied by Q waves, whereas NSTEMI has a lower probability of Q wave presence, making it more difficult to differentiate from unstable angina. Diagnosis: Myocardial enzyme spectrum and C-reactive protein are of great significance; the former includes creatine kinase (CK), CK isoenzyme, CK-MB, and troponin levels, all of which are diagnostically meaningful. C-reactive protein (CRP) indicates the presence of inflammation, with rapid progression during myocardial infarction being its hallmark; CRP is a highly sensitive, non-specific inflammatory marker. The greatest risk factor for ACS is the rapid escalation of reactive inflammation, and early use of aspirin can prevent such inflammatory responses. Of course, broad-spectrum antibiotics are absolutely essential, as reactive inflammation can quickly lead to massive bacterial infections.