既往曾报道房间隔瘤 (ＡＳＡ)与局部脑缺血 (即卒中及短暂性缺血发作 )之间的联系。但脑缺血发作的患者中 ,ＡＳＡ的相对发生率尚不明确。本文对普通人群与脑缺血发作患者ＡＳＡ的发生率作了阐述 ,并提出ＡＳＡ可能是心源性脑梗死的机制。研究对象随机选自参加卒中预防的普通人 A previous link between atrial septal tumor (ASA) and focal cerebral ischemia (ie, stroke and transient ischemic attack) has been reported. However, the relative incidence of ASA in patients with ischemic attacks is not yet known. This article describes the incidence of ASA in the general population and in patients with ischemic attacks and suggests that ASA may be a mechanism of cardiogenic cerebral infarction. Subjects were randomly selected from ordinary people who participated in stroke prevention