摘要
目的：探讨应用一种持续气道正压（CPAP）系统。对单肺通气下开胸病人的无通气肺施加持续气道正压，观察无通气肺接受持续气道正压时对动脉氧合的影响。方法：择期需在单肺通气下开胸手术病人20例，按美国麻醉医师协会（ASA）分级，Ⅰ～Ⅱ级；随机分为对照组（A组）和CPAP组（B组），每组各10例。A组在单肺麻醉期间非通气侧肺的支气管导管直接开口于大气中；B组单肺通气期间非通气侧持续给予CPAP（P=0．3kPa）。于仰卧双肺通气30min、仰卧单肺通气30min、侧卧单肺通气30min、60min、关闭胸腔双肺通气时，分别采取动脉血样做血气分析。结果：单肺通气后，B组氧合明显高于A组（P〈0．05）。结论：单肺通气期间，非通气侧持续给予CPAP，有助于提高氧合，减少肺内分流，可明显降低低氧血症的发生率。提高病人的安全性．
Objective： To investigate pressure （CPAP） on arterial oxygenation the effects of non -ventilated lung with continuous positive airway during one -lung ventilation. Method： Twenty patients were randomized to receive thoracic operation. ASA Ⅰ - Ⅱ , were selected and were randomly divided into two groups ： controlled group （ group A, n = 10 ） and observation group （ group B, n = 10 ）. Group A ： There were no ventilation on the non - ventilated lung open to the air; group B ： CPAP was administered with O2 （ P = 0.3KPa ） via CPAP system on the non -ventilated lung during one lung ventilation. Blood gas analysis were determined at 30 min after two - lung ventilation （ TLV ） in the supine position, 30 min after one - lung ventilation （ OLV ） in supine position, 30 min and 60 min after OLV in lateral position and at the end of operation. Result： PaO2 in group B was increased significantly than that of in group A （ P 〈 0.05 ） during OLV. Conclusion： CPAP could improve the systemic oxygenation and reduce the intrapulmonary shunt and incidence rate hypoxemia during one lung ventilation.
出处
《河北医学》
CAS
2006年第8期733-735,共3页
Hebei Medicine
关键词
持续气道正压
单肺通气
血气分析
Continuous positive airway pressure
One -lung ventilation
Arterial oxygen partial pressure
