Definition: A set of critical medical emergencies that can present with chest pain and carry a high risk of mortality if not promptly identified and managed.
Pathophysiology Context: These conditions involve acute disruption to cardiovascular or respiratory systems, such as coronary artery occlusion (ACS), major vessel blockage (PE), aortic wall tearing (dissection), or lung collapse (tension pneumothorax).
Clinical Significance: The primary goal of the initial chest pain assessment is the rapid exclusion or confirmation of these conditions to enable time-critical interventions.
Clinical Assessment Clues: Look for red flag features like severe, tearing pain; haemodynamic instability (hypotension, tachycardia); respiratory distress (hypoxia); or new neurological deficits.
Management Principles: Management involves immediate stabilisation (ABCDE approach) and targeted therapies based on the diagnosis, such as reperfusion for ACS or anticoagulation for PE.