目的：探讨支气管哮喘患儿发作期左、右心功能变化及其与哮喘严重程度的关系。方法：用美国Acuson128XP/10型彩色多普勒超声诊断仪对24例危重、极危重哮喘患儿(危重组)及40例非危重哮喘患儿(普通组)进行左、右心功能测定,并与34例正常儿童(对照组)进行比较。结果：非危重组哮喘患儿在发作期以右心舒张功能受损为主,右室收缩功能亦受损,左心收缩及舒张功能正常;危重组哮喘患儿以左心收缩功能受损为主,左室舒张功能受损,右心收缩及舒张功能亦受损。结论：支气管哮喘患儿存在一定程度的心功能受损,并与哮喘严重程度密切相关。

OBJECTIVE: To explore the cardiac function of left and right ventricles in children with bronchial asthma at the acute stage and its association with the disease severity. METHODS: The cardiac function was evaluated by using the American Acuson 128XP/10 Doppler echocardiography in 24 children with acute severe bronchial asthma and 40 children with acute mild bronchial asthma. Thirty-four healthy children were used as normal controls. RESULTS: The injury of right ventricle diastolic function was predominant in children with mild asthma, and the right ventricle systolic function was also decreased. The systolic and diastolic function of left ventricle remained normal. In children with severe bronchial asthma, the injury of left ventricle systolic function was commonly seen, and the left ventricle diastolic function and the right ventricle systolic and diastolic function were also damaged. CONCLUSIONS: The cardiac function damage occurs in children with acute bronchial asthma and may be correlated with the disease severity.