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阻抗微分图测心排出量及收缩时间间期(STI),无损伤、重复性强,目前已为国内外临床医生所采用。但对最大射血量C 波的形成,尚无统一的看法。本文试图用代表主动脉血流量增大的法乐氏四联症(简称F_4)与代表肺动脉血流量增大的室间隔缺损(VSD)及房间隔缺损(ASD)以及正常人三组对照,探讨C 波形成与体肺循环血流量的关系及STI 改变。
Impedance differential graph cardiac output and time interval (STI), no damage, strong repeatability, is currently used by clinicians at home and abroad. However, there is no unified view on the formation of C wave of the maximum ejection amount. This article attempts to represent the increase of aortic blood flow tetralogy of Fallot (referred to as F_4) and representing the increase of pulmonary blood flow in ventricular septal defect (VSD) and atrial septal defect (ASD) and normal control of three groups to explore Relationship between C wave formation and systemic pulmonary blood flow and STI changes.