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首页> 外文期刊>Journal of cardiac surgery. >On-pump beating heart versus hypothermic arrested heart valve replacement surgery.
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On-pump beating heart versus hypothermic arrested heart valve replacement surgery.

机译:泵上跳动的心脏与低温停止的心脏瓣膜置换手术。

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Background: Comparison of neurological parameters in patients undergoing prosthetic heart valve replacement with two operating techniques-either cardioplegic arrest of the heart under hypothermic cardiopulmonary bypass (CPB) or the heart beating on normothermic bypass, with or without cross-clamping the aorta, without cardioplegic arrest. Methods: Fifty valvular surgery patients were randomly assigned into three groups. Sixteen patients underwent beating heart valve replacement with normothermic bypass without cross-clamping the aorta, 17 patients underwent the same procedure with cross-clamping the aorta and retrograde coronary sinus perfusion, and the remaining 17 patients had conventional surgery with hypothermic bypass and cardioplegic arrest. Results: Two-channel electroencephalography (EEG) was recorded to assess changes in cerebral cortical synaptic activity and 95% spectral edge frequency values were recorded continuously. Bispectral monitoring was used to measure the depth of anesthesia. Bloodflow rates in middle cerebral artery (MCA) were measured by transcranial Doppler (TCD). Reduction in spectral edge frequency (>50%) or bispectral index (BIS) (<20) or transcranial Doppler flow velocity (>50%) was detected in four patients in Group 1, five patients in Group 2, and three patients in Group 3. BIS or EEG values never reached zero, which indicates isoelectric silence during surgery. Gross neurological examinations were normal in all patients postoperatively. Conclusion: There is no difference regarding neurological monitoring results between on-pump beating heart and hypothermic arrested heart valve replacement surgery. Also no significant difference was encountered among the groups regarding the clinical outcomes.
机译:背景:使用两种手术技术对人工心脏瓣膜置换术患者的神经系统参数进行比较-低温心肺旁路(CPB)进行心脏停搏或在正常体温旁路下跳动心脏,有无交叉夹闭主动脉,无心律不齐逮捕。方法:将50例瓣膜手术患者随机分为三组。 16例患者在不交叉夹闭主动脉的情况下进行了常温旁路搏动的心脏瓣膜置换,17例患者在交叉夹闭主动脉和逆行冠状窦灌注的情况下进行了相同的手术,其余17例患者接受了常规的手术,即低温旁路和心脏停搏。结果:记录两通道脑电图(EEG)以评估大脑皮层突触活动的变化,并连续记录95%的频谱边缘频率值。双谱监测用于测量麻醉深度。通过经颅多普勒(TCD)测量大脑中动脉(MCA)的血流速度。在第1组的4例患者中发现了频谱边缘频率(> 50%)或双谱指数(BIS)(<20)或经颅多普勒流速降低(> 50%),在第2组中有5例患者,在第2组中有3例患者3. BIS或EEG值从未达到零,这表明手术期间等电静默。术后所有患者的大体神经系统检查均正常。结论:在泵跳动的心脏和低温停搏的心脏瓣膜置换术之间,神经系统监测结果没有差异。各组之间在临床结局方面也没有发现显着差异。

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