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CAPA与HFJV对老年患者单肺通气时血气值及肺分流量的影响

Influence of Continuous Positive Airway Pressure and High Frequency Jet Ventilation on Blood Gas and Pulmonary Shunt During One-lung Ventilation in Aged Patients
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摘要 目的:比较在老年肺癌患者行肺叶切除术单肺通气时,两种通气方法对动脉血气值及肺内分流的影响。方法:老年肺癌择期行肺叶切除术患者45例,年龄60~79岁,ASA Ⅰ—Ⅱ级,随机分为3组。A组:对照组;B组:单肺通气时术侧肺行高频喷射通气(HFJV);C组:术侧肺行持续气道正压通气(CAPA)。分别于单肺通气前,单肺通气30min,单肺通气结束,恢复双肺通气30min。测动脉血测血气分析。根据公式计算肺内分流率。结果:单肺通气30min及单肺通气结束时,B、C两组PaO2较A组高,Qs/Qt较A组降低(P〈0.05)。但B、C两组间各时点数据比较差异无显著性。结论:老年肺癌患者行肺叶切除术单肺通气时,术侧肺实施CPAP及HFJV均可明显提高氧分压。减少肺内分流,有临床推广价值。 Objective: to investigate the effects of non - ventilated lungwith continuous positive airway pressure (CPAP) and High Frequency Jet Ventilation (HFJV) on blood gas and intrapulmonary shunt during one-lung ventilation in lung cancer open chest surgery of aged patients. Methods: Forty-five aged lung cancer patients(aged 60 - 79 years) undergoing selective thoracic operation, ASA Ⅰ-Ⅱ , were selected and randomly divided into three groups (each group with 15 patients). Group A: controlled group, there were no ventilation on the non - ventilated lung open to the air; group B: CPAP was administered with O2 (P= 3cmtf20) via CPAP system on the non - ventilated lung during one lung ventilation; Group C: HFJV was administered with O2 (P=0.5-1.0Kg/cm^2); Blood gas analysis were determined at 30 min after two - lung ventilation (TLV), 30 min after one lung ventilation (OLV), at the end of OLV and 30 min after the second times TLV, and Qs/Qt was calculated by formulation. Results: PaO2 in group B,C were increased significantly than that of in group A (P〈 0. 05) during OLV; Qs/Qt in group B,C were decreased significantly than that of in group A (P〈 0. 05). But there was no significant difference of PaO2 and Qs/Qt between group B and C. Conclusion: CPAP and HFJV could imp rove the systemic oxygenation and reduce the intrapulmonary shunt, they are clinically significant during one-lung ventilation in lung cancer open chest surgery of aged patients.
出处 《医学信息(医药版)》 2008年第9期9-11,共3页
关键词 单肺通气 老年患者 持续气道正压 高频喷射通气 血气 肺分流量 one lung ventilation aged patients CAPA HFJV intrapulmonary shunt blood gas
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