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目的 研究房颤患者脑动脉微栓子的发生率。方法 随机抽取 178例患者分成房颤组 30例、心脏病无房颤组 32例及非心脏病无房颤组 2 8例 ,先用Embo dop型TCD进行双侧大脑中动脉的微栓子自动监测。结果 房颤组微栓子阳性发生率 70 .0 % ,心脏病无房颤组微栓子阳性发生率 4 6 .9% ,而非心脏病无房颤组微栓子阳性发生率 17.9% ,三组之间经 χ2 检验有统计学意义。结论 房颤是微栓子的主要来源 ,对房颤患者进行积极的抗凝治疗可以减少脑卒中的发生和再发生的机会
Objective To study the incidence of cerebral arterial micro-emboli in patients with atrial fibrillation. Methods A total of 178 patients were randomly divided into atrial fibrillation group, 30 cases, 32 cases of atrial fibrillation without heart disease and 28 cases of non-atrial fibrillation without atrial fibrillation. Embo dop type TCD was used to conduct bilateral cerebral middle cerebral artery embolization monitor. Results The positive rate of micro-emboli in AF group was 70.0%, the positive rate of micro-emboli in non-AF group was 46.6%, while the positive rate of micro-emboli in non-AF group was 17.9% Between the three groups by χ2 test was statistically significant. Conclusion Atrial fibrillation is the main source of microemboli. Anticoagulation therapy in patients with atrial fibrillation may reduce the chance of stroke and recurrence