目的 觀察慢性阻塞性肺疾?。–OPD)患者單肺通氣時急性血液稀釋對動脈血氧合作用的影響。方法 選擇擬行肺葉切除手術(shù)需要單肺通氣患者40例,肺功能正常組和COPD組各20例。手術(shù)開始前完成試驗。麻醉誘導(dǎo)后置入雙腔氣管導(dǎo)管。先單肺通氣15 min,立即采動、靜脈血作血氣分析。放置食管超聲探頭,測心排出量。雙肺通氣15 min。兩組患者在雙肺通氣同時靜脈輸注6%的羥乙基淀粉500 mL。單肺通氣15 min。立即采動、靜脈血作血氣分析和測心排出量。結(jié)果 肺功能正常組和COPD組患者急性血液稀釋導(dǎo)致Hb和紅細胞壓積下降(P lt;0.05)。COPD組患者氧分壓均明顯低于肺功能正常組,且急性輕度等容稀釋導(dǎo)致該組患者的氧分壓比稀釋前明顯下降(P lt;0.05)。兩組患者的心排出量、平均動脈壓、中心靜脈壓、二氧化碳分壓及氧飽和度差異均無統(tǒng)計學(xué)意義(P gt;0.05)。結(jié)論 對于COPD患者,單肺通氣時急性輕度等容稀釋可導(dǎo)致COPD患者的氧分壓明顯下降,急性等容稀釋并不是一種安全的替代輸血的措施。
引用本文: 江曉琴 ,林雪梅,馬玉珊,銀艷. 慢性阻塞性肺疾病患者單肺通氣時急性血液稀釋對動脈血氧合作用的影響. 中國呼吸與危重監(jiān)護雜志, 2008, 08(2): 101-103. doi: 復(fù)制
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- 1. 劉俊杰,趙俊,主編.現(xiàn)代麻醉學(xué).第2版.北京:人民衛(wèi)生出版社,2000,748.
- 2. Deem S,Hedges RG,Mckinney S,et al.Mechanisms of improvement in pulmonary gas exchange during isovolemic hemodilution.J Appl Physiol,1999:87:132-141.
- 3. Voeckel NF.Mechanism of hypoxic pulmonary vasoconstriction.Am Rev Respir Dis,1986,133:1186-1195.
- 4. Voelkel NF.Mechanism of hypoxic pulmonary vasoconstriction.Am Rev Respir Physiol,1988,72:109-121.
- 5. Deem s,Bishop MJ,Alberts MK.Effect of anemia on intrapulmonary shunt during atelectasis in rabbits.J Appl Physiol,1995,79:1951-1957.
- 6. 鄧碩曾,劉進,主編.血液保護與輸血安全.成都:四川科學(xué)技術(shù)出版社,2007,123.
- 7. Abe K,Shimizu T,Takashina M,et al.The effects of propofol, isoflurane, and sevoflurane on oxygenation and shunt fraction during one-lung ventilation.Anesth Analg,1998,87:1164-1169.
- 8. 陳振毅,于忠元,黃曦,等.比較異氟醚、丙泊酚在單肺通氣時對肺內(nèi)分流的影響.臨床麻醉學(xué)雜志,2003,19:719-721.
- 9. 張坤全,劉東輝.兩種不同的麻醉方法在單肺通氣時對肺內(nèi)分流影響的比較.中國基層醫(yī)藥,2005:12:303-304.