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首页> 外文期刊>Ultrasound in Medicine and Biology >The Significance of the Ultrasound Diagnostics in Evaluation of the Emboligenic Pathogenesis of Transient Ischemic Attacks
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The Significance of the Ultrasound Diagnostics in Evaluation of the Emboligenic Pathogenesis of Transient Ischemic Attacks

机译：超声诊断在评估短暂性脑缺血发作栓塞发病机制中的意义

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摘要

The objective of this study was to examine the possibilities of ultrasound diagnostics in the evaluation of emboligenic pathogenesis of transient ischemic attacks (TIAs) and the frequency of specific origins of embolism. A total of 150 adult patients with TIA and 50 control patients, were examined by neurosonologic, echocardiographic and venous ultrasound examination. Emboligenic pathogenesis of TIA was established in 36.6% of patients. Microembolic signals were detected in 22.7% of the whole group, and 61.8% in emboligenic TIA subgroup. Artery-to-artery embolism from ulcerated plaque of the carotid arteries was found in 12.6% of patients, from the aortic arch atheroma in 3.3% and cardioembolism in 12.6% (atrial fibrillation 7.3%, atrial septal aneurysm 2%, mitral valve prolapse 2%, mechanical heart valve 0.7%, left atrium thrombus 0.7%). Paradoxic embolism with the patent foramen ovale was established in 6% of patients, and with the pulmonary right-to-left shunt in 2%. Correlation with controls showed significantly higher frequency of the ulcerated carotid plaque and frequency of microembolic signals in the TIA group (. p < 0.05). The patients with potential sources of embolism had a greater risk of developing TIA than those without these sources.
机译：这项研究的目的是检查超声诊断在评估短暂性脑缺血发作（TIA）的栓塞发病机理以及特定栓塞发生频率方面的可能性。通过神经超声，超声心动图和静脉超声检查，共检查了150名成人TIA患者和50名对照患者。 TIA的栓塞发病机制已建立在36.6％的患者中。在整个组中检测到微栓塞信号的比例为22.7％，在栓塞性TIA亚组中检测到的比例为61.8％。颈动脉溃疡斑块的动脉栓塞发生率为12.6％，主动脉弓粥样斑块为3.3％，心脏栓塞率为12.6％（房颤7.3％，房间隔动脉瘤2％，二尖瓣脱垂2 ％，机械心脏瓣膜0.7％，左心房血栓0.7％）。在6％的患者中发现了卵圆孔未闭的悖论性栓塞，在肺部从右向左分流的患者为2％。与对照组的相关性显示，TIA组的颈动脉斑块溃疡频率和微栓塞信号频率显着更高（。p <0.05）。具有潜在栓塞来源的患者比没有这些来源的患者发生TIA的风险更大。

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