限制性通气功能障碍肺功能指标特点

Lung function characteristics of restrictive ventilatory dysfunction

限制性通气功能障碍是指肺体积受限引起的肺容量减少不伴随气体流量的下降,主要表现为肺容量和时间肺活量的减少,多伴随最大呼气流量-容积曲线的典型限制性改变;引起限制性通气功能障碍的疾病很多,它们又各自具有不同的肺功能特点。

Restrictive ventilatory dysfunction is referred to as reduced lung capacity due to volume restriction without de- cline in airflow. The major manifestation-namely, reduced lung capacity and timed vital capacity-may coincide with the typi- cal restrictive pattern in maximal expiratory flow curve. Restrictive ventilatory dysfunction may be found in multiple diseases that are featured of various characters of lung function impairment.