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作者对30例发作性房颤病人与无脑血管病史窦性心律的30例正常对照者进行了房颤发作频率与CT扫描研究。CT 发现发作性房颤病人中有4例(13%)和对照组中有3例(10%)存在有与周围组织界限清楚的低密度异常灶。由于异常区域较小故临床表现为无症状性梗塞。研究提示两组间在组织损伤灶的数目和病灶大小方面及引起中风的危险性均无显著差异。与慢性房颤相对比,在发作性房颤患者所产生的损害的危险与窦性心律的正常对照者比较发现并未增加。并与临床验证的发作性房颤比慢性房颤的中风危险性低相一致。30例发作性房颤中11例(36%)有缺血或高血
The author of 30 patients with paroxysmal atrial fibrillation and no history of cerebrovascular disease in 30 patients with normal sinus rhythm of atrial fibrillation frequency and CT scan study. In CT, 4 (13%) patients with paroxysmal atrial fibrillation and 3 (10%) patients in the control group had a clear delineation of low-density abnormalities with surrounding tissues. The clinical manifestations of asymptomatic infarction due to smaller anomalies. The study suggests no significant difference between the two groups in the number of lesions and the size of lesions and the risk of stroke. In contrast to chronic atrial fibrillation, the risk of developing lesions in patients with atrial fibrillation did not increase compared with those of normal controls for sinus rhythm. And consistent with clinically proven episodes of atrial fibrillation compared with low risk of stroke in chronic atrial fibrillation. Eleven patients (36%) had episodes of ischemic or hyperglycemia in 30 patients with paroxysmal atrial fibrillation