Complications of MI Revised Study.

Cardiac arrest - correct answer Most commonly caused by VF Most common cause of death Manage according to ALS guidelines Cardiogenic shock - correct answer Decreased ejection fraction due to damage to a large part of the myocardium Predisposes to mechanical complications such as free wall rupture Manage with ionotropes and intra-aortic balloon pump Chronic heart failure - correct answer Ventricular dysfunction Manage with ACE-i, beta-blockers and diuretics Tachyarrhythmias - correct answer VF and VT Bradyarrhythmias - correct answer AV node block (3rd degree) Pericarditis - correct answer Develops within 48 hours in 10% of transmural MI Dressler's syndrome = autoimmune reaction against myocardial antigens occurring 2-6 weeks post-MI Presents with fever, pleuritic chest pain, pericardial effusion, raised ESR Manage with NSAIDs Left ventricular aneurysm - correct answer Ichaemia weakens the wall predisposing to aneurysm formation Presents with persistent ST elevation and LV failure +/- thrombosis Left ventricular free wall rupture - correct answer Occurs in 1-2% of MI