J4 ›› 2012, Vol. 38 ›› Issue (5): 977-980.

• 临床研究 • 上一篇    下一篇

不同压力呼吸末正压通气对开胸手术单肺通气期间肺内分流及氧合的影响

庞义娟,冯艳华,李艳辉,王 丹,麻海春,王艳芬   

  1. 庞义娟1,2,冯艳华2,李艳辉2,王 丹2,麻海春2,王艳芬3
  • 收稿日期:2012-02-16 出版日期:2012-09-28 发布日期:2012-09-28
  • 通讯作者: 王艳芬(Tel:0431-88783337, E-mail: mahaichun2003@yahoo.com.cn) E-mail:mahaichun2003@yahoo.com.cn
  • 作者简介:庞义娟(1982-),女,山西省祁县人,医学硕士,主要从事围术期呼吸功能监测的研究。
  • 基金资助:

    吉林省科技厅国际合作项目资助课题(20110759)

Influence of different positive end-expiratory pressure on oxygenation and pulmonary shunt fraction during one-lung ventilation

PANG Yi-juan1.2, FENG Yan-hua2, LI Yan-hui2, WAN Dan2, MA Hai-chun2, WANG Yan-fen3   

  1. 1.Department of Anesthesiology, Sir Run Run Shaw Hospital, School of Medical Sciences,Zhejiang University,
     Hangzhou 310016, China;2. Department of Anesthesiology, First Hospital, Jilin University, Changchun 130021, China;3. Department |of Gastroenterology, Second Hospital, Jilin University, Changchun 130021, China
  • Received:2012-02-16 Online:2012-09-28 Published:2012-09-28

摘要:

目的:研究不同压力呼吸末正压通气(PEEP)对单肺通气(OLV)期间肺内分流及氧合的影响,探讨OLV期间应用的最佳PEEP值。方法: 选择ASA Ⅰ-Ⅱ级择期行开胸手术OLV患者30例,患者侧卧位后分别于双肺通气30 min(T1)、单肺通气30 min(T2)、通气侧肺5 cm H2O 30 min(T3)及通气侧肺10 cmH2O 30 min(T4)时行血气分析,记录各时间点动脉血氧压(PaO2)、动脉血二氧化碳分压(PaCO2)、动脉血氧饱和度(SaO2)、pH、心率
(HR)、平均动脉压(MAP)及气道峰压(Ppeak),并计算肺内分流(Qs/Qt)。结果:与双肺通气比较,OLV时PaO2明显下降,Qs/Qt明显升高(P<0.05)。T2到T3期间PaO2从(200.20±145.25) mmHg上升到(299.55±138.83) mmHg,Qs/Qt下降(P<0.05)。T3到T4期间PaO2从(299.55±138.83) mmHg下降到(237.30±135.57) mmHg,Qs/Qt有所升高(P<0.05)。OLV时Ppeak值从T2(21.15±3.60) cmH2O上升到T4 (27.20±3.78) cm H2O(P<0.05)。结论:OLV期间,通气侧肺应用PEEP 5 cmH2O能有效提高PaO2,减少Qs/Qt,防止低氧血症的发生,血流动力学稳定,不影响手术操作,是较合适的PEEP值。
 

关键词: 呼吸末正压通气, 单肺通气, 动脉血氧分压, 肺内分流

Abstract:

Objective  To study the different positive end-expiratory pressure (PEEP) on pulmonary shunt fraction and oxygenation during one-lung ventilation (OLV), and to explore the best PEEP value in OLV.Methods  Thirtypatients with ASA Ⅰ-Ⅱ level elective thoracotomy with OLV were selected.The blood gas analysis were performed
 in the lateral position at ventilation 30 min (T1), OLV 30 min (T2), 5 cmH2O OLV PEEP 30 min (T3), and 10 cm

H2O OLV PEEP 30 min (T4).At each time point, the PaO2, PaCO2, SaO2, pH, HR, mean arterial pressure (MAP), and peak airway pressure (Ppeak) were recorded, and the intrapulmonary shunt(Qs / Qt) was calculated.Results Compared with two-lung ventilation, the PaO2 was decreased and the Qs / Qt was increased significantly (P<0.05), the PaO2 was increased from (200.20 ± 145.25) mmHg to (299.55±138.83) mmHg (P<0.05) and the Qs / Qt was decreased (P<0.05) at the duration of T2 to T3; the PaO2 was decreased from (299.55 ± 138.83) mmHg to(237.30 ± 135.57) mmHg(P<0.05) and the Qs / Qt was increased (P<0.05) at the duration of T3 to T4; the Ppeak value was increased from T2(21.15±3.60) cmH2O to T4(27.20±3.78) cm

H2O (P<0.05)  in OLV.Conclusion During OLV, 5 cmH2O PEEP applied in ventilated lung can increase the

PaO2, decrease the Qs / Qt and prevent the occurrence of hypoxemia.It is more appropriate PEEP value.

Key words: positive end-expiratory pressure, one-lung ventilation, arterial partial pressure of oxygen, pulmonary shunt fraction

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