Interventional procedure overview of venoarterial extracorporeal membrane oxygenation (VA ECMO) for acute heart failure

INTERMACS profile (IP): this is a 7-profile categorisation for people with advanced heart failure, ranging from IP-1 as the most critical, to IP-7 as the least critical. IP-1 (critical cardiogenic shock), IP-2 (progressive decline on inotropes), IP-3 (stable but inotrope dependent), IP-4 (resting symptoms on oral therapy at home), IP-5 (exertion intolerant), IP-6 (exertion limited), IP-7 (placeholder – living comfortably with meaningful activity limited to mild physical exertion).

Society for Cardiovascular Angiography and Interventions (SCAI) SHOCK classification: this is a 5-category classification (A to E) that indicate the severity of cardiogenic shock. A (haemodynamically stable patient not experiencing symptoms of CS, but at risk for its development), B (clinical evidence of haemodynamic instability without evidence of hypoperfusion), C (clinical evidence of hypoperfusion that requires pharmacologic or mechanical support), D (clinical evidence of shock that worsens or fails to improve despite therapy escalation), E (refractory shock or actual/impending circulatory collapse).