摘要
本文报道２２例风心病患儿心导纳微分环改变，按心功能分为心功能Ⅰ、Ⅱ级组和心功能Ⅲ、Ⅳ级组，并与同年龄２２例健康儿童对照分析。结果显示：心功能Ⅰ、Ⅱ级时仅Ⅰ相面积缩小，Ⅱ相面积与总面积比值增大。心功能Ⅲ、Ⅳ级时则Ⅰ相面积、Ⅰ相面积与总面积比值均缩小，Ⅲ相面积、Ⅱ、Ⅲ、Ⅴ相面积与总面积比值均增大，Ⅲ相与Ⅰ相面积比值增大。作者认为心导纳微分环可反映风心病患儿心功能变化。
The changing of cardiac admittance differential loop(ADL)in 22 children with rheumatic heart disease is reported in this paper.The subjects were divided into 2 cardiac function groups,class Ⅰand class Ⅱwere in Group A,class Ⅲ and class Ⅳ in Group B,according to the functional classification of New York Heart Association.Twenty-two healthy children of the same age and sex were choiced as the controls.The results showed as follows:The area of Phase Ⅰdecreased,and the ratio of area of Phase Ⅱ to the total area increased in Group A.The area of Phase Ⅰ and the ratio of area of phase Ⅰ to the total area decreased;the area of Phase Ⅲand the ratios of area of Phases Ⅱ,Ⅳ and Ⅴ to the total area increased;and the ratio of the area of Phase Ⅲ to Phase Ⅰ increased too.It is believed that ADL is valuable to estimate the cardiac function of patients with rheumatic heart disease.
关键词
心异纳微分环
风湿性心脏病
儿童
心脏功能
plethysmography,impedance
admittance differential loop
heart disease,rheumatic
childhood
