英语语法分析

Objective To observe the DCG and change of heart function in ACVD.

目的探讨急性脑血管病（ACVD）动态心电图（DCG）及心功能改变的特点。

Methods: DCG was used to analyse the arrythmia in 500 elderly patients.

方法：应用dcg对500例老年人心律失常进行分析。

DCG blood gas analysis, lung function and blood rheology indexes were checked.

治疗前后检查动态心电图、气分析、功能及血液流变指标。