Relationship Between Postoperative Delirium and Heart Function in Valvular Surgery：A Prospective Observational Cohort Study

Delirium is an acute brain lesion characterized by abnormalities of consciousness, attention, cognition and sensation. Many brain diseases such as stroke, traumatic brain injury and intracranial hypertension can lead to cardiac insufficiency, arrhythmia and heart failure. The incidence of postoperative delirium in patients undergoing cardiac surgery is high. Postoperative delirium is a manifestation of brain function injury. The effect of postoperative delirium on postoperative cardiac function in patients undergoing cardiac surgery is worthy of further discussion.