重症心脏（2014-2015）：我们关注的热点问题

ritical heart disease is an important disease in critical care medicine. In recent years, progress has been made in the diagnosis and treatment of heart failure, mechanical circulatory support and heart function monitoring. This article describes the effect of brain natriuretic peptide in diagnosing heart failure, the effect of levosimendan in treating heart failure, the effect of hypothermic therapy for cardiac arrest, the progress of mechanical circulatory support and the application of ultrasound in critical heart disease, which are the basis for the improvement of critical heart disease. Key words: Intensive care; Heart failure; Hypothermia