Delirium is an acute confusional state, a common and serious complication in older indiiduals that often follows surgery or serious illness.

• 谵妄是一种急性精神错乱状态，一种常见和严重的合并症，常常发生在手术后和严重疾病时，有时伴随定向力障碍，偏执和幻觉。