Heart failure (HF) is a complex clinical syndrome that can result from
any functional or structural cardiac disorder that impairs the ventricle’s
ability to fill with or eject blood. Heart failure not only reduces thepatient's life expectancy, but also causes the patient to breathe difficult,
fluid retention and fatigue, which significantly reduce the quality of life of
patients.
Almost all of the cardiovascular disease will eventually lead to heart
failure, and myocardial infarction is the main cause of heart failure. Heart
failure after myocardial infarction can lead to left ventricular systolic and
diastolic dysfunction. In the end stage of heart failure, the effect of drugs
treatment is very low. Therefore, many studies have turned to use devices to
therapy heart failure.
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