左室射血分数下降危险因素的探讨  

Investigation of risk factors in 95 patients with decreasing ejection fraction

作　　者：张美芳[1] 楼福庆[1] 

机构地区：[1]浙江医科大学附属二院心脑血管病研究所

出　　处：《心功能杂志》1998年第3期160-162,共3页

摘　　要：应用无创左右心功能同步检测仪测定左室射血分数（ＥＦ）下降患者９５例的心脏功能，并与３９例ＥＦ正常者比较。ＥＦ下降组的每搏出量、每搏指数均较正常组显著下降，病因以心肌炎、高血压病和冠心病为主，男性多于女性。在冠心病、高血压病、肺源性心脏病、风湿性心脏病和心肌炎等常见心血管疾病中，总阻抗均较对照组为高（Ｐ＜０．０１），总阻抗升高是患者ＥＦ下降的主要因素。总阻抗升高的原因除冠心病、高血压病的病因外，尚有血液粘度和精氨酸加压素浓度增高等因素。我们认为应用无创左右心功能同步检测仪测定不仅有助于了解冠心病、高血压病和心肌炎的病情，而且对ＥＦ值下降的患者更具有重要意义。By using a noninvasive synchronous ventricular function detector (NISVFD),the cardiac function capacity in 95 patients with decreasing ejection fracton(EF) was determined,with 39 normal subjects as controls. The stroke volume(SV) and stroke index (SI) in patients with decreasing EF decreased significantly as compared with those in the normal group. This decrease was mainly due to myocarditis, essential hypertension(EH) and coronary heart disease(CHD). The incidence of decreasing EF was higher in male than in female. In patients with EH,CHD,pumonary heart disease,rheumatic heart disease and myocarditis,the five common cardiovascular diseases,the resistance total mean (RTM) was higher than in the normal subjects (P<0.01). RTM was the main risk factor in 95 patients with decrasing EF. RTM increase was due to such factors as elevated blood viscosity, arginine vasopressin, in addition to EH and CHD.Our results suggest that the use of a NISVFD helps us not only to understand the severity in CHD,EH and myocarditis and in especial decreasing EF patients, but also to follow up survey of results of medicinal effect and prognosis.

关 键 词：射血分数 心脏功能试验 外周阻力 心脏病 

分 类 号：R541[医药卫生—心血管疾病]