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目的:慢性呼吸衰竭患者经鼻/面罩通气(NPPV)时如何掌握适应症。方法:40例慢性呼吸衰竭患者(包括代偿期和急性加重期)行NPPV治疗。治疗前取SAPSⅡ评分,PH,PaO_2,PaCO_2和H_2CO_3为指标,对40例患者作系统聚类分析,分为两类。治疗后根据患者接受治疗是否有效也可将患者分为两类。比较两种分类的差别。结果:根据事前指标系统聚类分类和事后病人实际情况分类的附合率为95％。五个事前指标中以SAPSⅢ评分和PaO_2最有意义。结论:慢性呼衰患者在决定是否行NPPV时可用SAPSⅡ和PaO_2来判断。SAPSⅡ评分不超过50,PaO_2不低于45mmHg者,NPPV的治疗易取得成功。
Objective: To understand indications for nasal / mask ventilation (NPPV) in patients with chronic respiratory failure. Methods: Forty patients with chronic respiratory failure (including compensatory phase and acute exacerbation) underwent NPPV. Take SAPS Ⅱ score before treatment, PH, PaO_2, PaCO_2 and H_2CO_3 as an index, 40 patients for system cluster analysis, divided into two categories. Patients may be divided into two groups based on whether the patient is receiving treatment after treatment. Compare the differences between the two categories. Results: According to the ex-ante index system cluster classification and the actual situation of patients after the classification of the attachment rate was 95%. Among the five prior indicators, the SAPS III score and PaO 2 were the most significant. Conclusion: Patients with chronic respiratory failure can be judged by SAPS Ⅱ and PaO_2 in determining whether NPPV is performed or not. SAPS Ⅱ score not more than 50, PaO_2 not less than 45mmHg, NPPV treatment easy to succeed.