摘要
右胸电导纳检测是一种简便、非创伤性的、通过监测肺循环血容积变化,间接反映左心负荷情况的检测方法.本文对34例经冠状动脉造影确诊的冠心病患者进行右胸电导纳、超声心动图射血分数(LVEF)及左室舒张末压(LVEDP)检测,根据左冠脉受累情况将患者分为两组(A组为无左冠病变或左冠单支病变患者;B组为左冠双支病变或左主干病变)并进行对比分析;同时观察18例冠心病患者右胸电导纳在血管重建术[冠状动脉搭桥术(CABG)10例,经皮冠状动脉腔内成形术(PTCA)8例]前后的变化.结果表明hc/hz、ha/hz与LVEF呈中度负相关,说明该技术测定左心功能是可行的;左冠状动脉双支病变或左主干病变患者的hc/hz、ha/hz(与LVEDP结果相似)较无或单支左冠脉病变患者明显升高,经PTCA或CAGB术后,其hc/hz、ha/hZ、LVEDP明显下降.作者认为:右胸电导纳检测法从肺循环血液容积波动情况、左心前负荷角度评价左心功能,为冠心病患者治疗手段的选择,血管重建术疗效及随访提供了一个新的客观指标.
The right chest electric admittance plethsmography (RCEAP) is a simple no invasive and reliable method in detecting the blood flow volume in the pulmomary artery and vein, an indirection of the left heart function. In this clinical study, the RCEAP, left heart catheterization for measurement of LVEDP and coronary angiogram and echocardiography for investigating the LVEF were performed on 34 patients with coronary heart disease. Of these 34 patients,24 had single or no left vessel lesion (Group A), 10 had left main coronary artery or its double branches lesions (Group B) ;8 underwent percutaneous trans-lumin coronary angioplasty (PTCA)and 10 had coronary artery bypass graft (CABG).The data obtained were analysed and compared to evaluate their respective diagnostic values. Correlation analysis demonstrated the values of hc/hz ratio, ha/hz ratio were moderated with LVEDP(r = 0. 68 or 0. 73,P<0. 001) or with LVEF (r= ?0. 72 or -0. 65,P<0. 001). The values of hc/hz ratio,ha/hz ratio,LVEF and LVEDP were significantily higher in the Group B than in the Group A. The changes of paramenters of RCEAPM after PTCA and CABG were considerable. The ha/hz ratio, hc/hz ratio decreased significantly as compared with the corresponding preoperative values. The clinical study demonstrated that RCEAP can be used in monitoring the changes of cardiac functions and in evaluating the effects of surgical treatment of coronary arterial disease immediately after operation or during the follow-up period through analysing the changes of the parameters in the RCEAPM.
出处
《中国介入心脏病学杂志》
1996年第4期156-159,共4页
Chinese Journal of Interventional Cardiology
关键词
冠心病
腔内成形术
右胸电导胸
外科手术
Right chest electric admittance plethysmography Cronary arterial disease Percuta-neous transluminal coronary angioplasty Coronary aortic bypass graft
