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本文用无创伤性心阻抗图(ICG)检测了经临床确诊和手术证实的12例先心病动脉导管未闭(PDA)患者,因例数少年龄差大,从已完成的247例健康小儿心阻抗图检测的资料及120名正常人ICG检测资料中,选12例条件相似的健康者作配对比较,并对其中9例PDA患者手术前后左心功能各参数进行自身对照分析。结果与讨论: PDA组,所测各指标,SV(每搏排血量),CO(每分排血量),CI(心脏指数)明显高于配对组,与配对组比较均有显著差异(P<0.01),C波(室缩波)12例中有8例呈高速波),显示出心肌收缩力强,心排血量高,因动脉导管未闭时左室射出的血液在大动
In this paper, 12 patients with patent ductus arteriosus (PDA) diagnosed clinically and surgically were examined by noninvasive cardiac impedance spectroscopy (ICG). Among the 247 healthy children with heart failure Impedance profile test data and 120 normal ICG test data, 12 healthy subjects with similar conditions were selected for paired comparison. Nine of them were compared with each other before and after surgery. RESULTS AND DISCUSSION: In the PDA group, the indexes measured, SV (stroke volume), CO (per minute) and CI (cardiac index) were significantly higher than those in the matched group P <0.01), C wave (chamber contraction wave) in 12 cases were high-speed wave in 8 cases, showing strong myocardial contractility, cardiac output is high, due to patent ductus arteriosus in the left ventricle of the blood in the big move