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为了探索慢性阻塞性肺疾病（ＣＯＰＤ）患者接受长时间人工通气后成功脱机的特点和规律，分析了１３例（男９例，女４例，年龄６７．１±７．２岁），接受长时间（１３．４±５．２天）人工通气后成功脱机的ＣＯＰＤ患者的临床资料。结果显示：影响长时间接受人工通气的ＣＯＰＤ患者脱机的因素是复杂的。单指标判定脱机时机及预后欠准确。传统的脱机床边肺功能指标对ＣＯＰＤ患者过于严格，应用ＶＣ／ＴＶ＞１．５，Ｐｉｍａｘ＜－１８ｃｍＨ２Ｏ判断患者排痰能力有一定帮助，ｆ／ＴＶ作为呼吸贮备力的简易指标，在我国目前有一定实用价值。
In order to explore the characteristics and rules of patients with chronic obstructive pulmonary disease (COPD) who were successfully off-line after prolonged artificial ventilation, 13 patients (9 males and 4 females, age 67.1 ± 7.2 years) Long-term (13.4 ± 5.2 days) after successful ventilation of artificial COPD patients with clinical data. The results showed that: The factors that affect offline COPD patients receiving long-term artificial ventilation are complex. Single indicators to determine the timing and offline prognosis is not accurate. The traditional off-bed lung function index is too strict for patients with COPD. It is helpful to judge the sputum capacity of patients with VC / TV> 1.5 and Pimax <-18cmH2O. F / TV as a simple indicator of respiratory reserve capacity in our country There is a certain practical value.