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find Author "华扬" 2 results
  • Application of Transcranial Doppler Monitoring in Aortic Dissection Surgical Procedure

    Objective To evaluate the applicability of Transcranial Doppler (TCD) monitoring in brain protection in the process of aortic dissection surgical procedure. Methods From Feburary 2007 to November 2007, six patients with type I aortic dissection underwent surgical procedure in Xuanwu Hospital of Capital Medical University. All patients are male with their age ranged from 48 to 60 years. During the operation, right subclavian arterial cannulation technique was used to protect the brain, and TCD monitoring was adopted to guide cerebral perfusion. The function of nervous system after operation was observed, and the minimental state examination (MMSE) was used to assess the cognitive function of the patients. A twoyear followup was done to monitor patients’ aorta condition. Results The time of cardiopulmonary bypass (CPB) was 136 to 350 minutes. The time of selected cerebral perfusion was 20 to 65 minutes. The lowest cerebral blood flow was 31% of basic level according to TCD monitoring. All patients were successfully treated without neurological complication and cognitive dysfunction when discharged from hospital. MMSE score was 28 to 30 points. During the twoyear followup after operation, all aortic false lumen were closed and there was no dissection recurrence. Conclusion Monitoring blood change with TCD monitoring technique is safe and effective in evaluating brain protection by selective cerebral perfusion in aortic dissection surgical procedure.

    Release date:2016-08-30 05:56 Export PDF Favorites Scan
  • 应用超声波评价冠状动脉旁路移植术患者脑缺血并发症的危险因素

    目的 为减少冠状动脉旁路移植术(CABG)患者术后脑缺血并发症的发生,评价其危险因素. 方法 术前对连续施行CABG的65例患者常规行双功能彩色多普勒血流图象(CDFI)和经颅多普勒(TCD)检查,观察颈动脉和颅内动脉形态学和血流动力学指标的改变(包括颈动脉内膜厚度、斑块的发生、血管狭窄率等). 结果 CDFI检测异常57例(87.7%);颈内动脉狭窄gt;50%13例,其中单侧狭窄50%~69% 6例,双侧狭窄50%~69% 2例,双侧狭窄70%~99% 1例,一侧颈内动脉闭塞、一侧狭窄gt;50% 4例.TCD发现颅内动脉单支狭窄8例,多支狭窄25例.术后死亡2例(3.1%),围术期心肌梗死2 例.冠状动脉3支病变患者颈动脉内膜增厚和多发性斑块发生率明显高于2支病变患者(χ2=4.37, 8.56;P=0.034, 0.013). 结论 术前行CDFI和TCD检查对颈动脉和颅内动脉硬化病变是一种可行的无创筛选方法,对减少CABG患者脑缺血并发症,提高冠心病的外科治疗水平很有价值.

    Release date:2016-08-30 06:30 Export PDF Favorites Scan
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