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联合高频通气法(Combined high jrequency ven-tilation,CHFV)是指高频正压通气(HFPPV)与高频振荡(HFO)同时使用以消除单用HFO时的高碳酸血症。本文评价了CHFV在治疗顽固性成人呼吸窘迫综合征(ARDS)低氧血症中的作用。资料和方法:7例病人(男3、女4)年龄15～59岁,均发生末期呼吸衰竭(TRF)。TRF的标准是当吸氧浓度(F10_2)=1,潮气量(V_r)>20ml/Kg,频率>20次/分、PEEP>15cmH_2O时,PaO_2<50mmHg、分流分数(Qs/Qt)>50%。这些指标也是应用CHFV的标准。3例病人为支气管癌行肺切除术,术后均并发暴发性肺炎和ARDS;1例晚期恶性胸腺瘤,肺活检为
Combined high frequency ventilation (CHFV) refers to the use of high-frequency positive pressure ventilation (HFPPV) and high-frequency oscillation (HFO) to eliminate hypercapnia in HFO alone. This article assesses the role of CHFV in the treatment of refractory adult respiratory distress syndrome (ARDS) hypoxemia. MATERIALS AND METHODS: Seven patients (male 3, female 4) aged 15-59 years developed end-stage respiratory failure (TRF). The standard of TRF is that PaO_2 <50mmHg and Qs / Qt> 50% when oxygen concentration (F10_2) = 1, tidal volume (V_r)> 20ml / Kg and frequency> 20 times / min and PEEP> 15cmH_2O. . These indicators are also the standard for the application of CHFV. Three patients underwent pneumonectomy for bronchial carcinoma, with both fulminant pneumonia and ARDS postoperatively. One patient had advanced malignant thymoma with lung biopsy