第6秒用力呼气量在肺功能评价中的临床意义

用力肺活量(FVC)和第1秒用力呼气量是用来诊断与鉴别诊断阻塞性和限制性通气功能障碍的两个重要指标.近几年来的研究显示第6秒用力呼气量能很好地替代FVC,不仅能减少患者呼气时间,降低因呼气延长诱发呼吸困难的风险,使患者更易配合完成合格的测定,同时还能提高气道阻塞高危因素受试者的检出率,为早期诊断和治疗提供可能.

Analysis of forced expiratory volume in six seconds in spirometry

Forced vital capacity(FVC)and forced expiratory volume in one second are two important indexes,which can distinguish obstruction to restriction on ventilation.In recent years,many studies have recommended that forced expiratory volume in six seconds(FEV6)could substitute for FVC.It not only can save the time for expiration in order to reduce the risk of dyspnea,but also can rise the positive value on high risk population which have obstructive ventilation dysfunction.The use of FEV6 provides a possibility for early diagnosis and therapy.