In this issue of Cardiology Clinics, guest editor Dr. Ran Lee brings his considerable expertise to the topic of Cardiac Emergencies. Top experts discuss common acute cardiac conditions frequently encountered in ER and ICU settings, their pathophysiology and epidemiology, as well as diagnosis and management considerations. As the overall patient population becomes more complex with competing comorbidities, management of the acute cardiac care patient is also becoming equally sophisticated, and this issue reviews up-to-date strategies for optimal care.