Effect of different ventilation modes on the airway pressure and arterial blood gas after cardiopulmonary bypass of DeBakey type Ⅰ aortic dissection surgery
ZHOU Li-li
LUO Xuan
Abstract：Objective To investigate the effect of volume controlled ventilation (VCV) and pressure controlled ventilation (PCV) on the airway pressure and arterial blood gas after cardiopulmonary bypass of DeBakey type Ⅰ aortic dissection surgery.Methods 60 cases of patients undergoing DeBakey type Ⅰ aortic dissection surgery were randomly divided into 2 groups (Group A and group B,30 cases in each group).All of the patients after anesthesia induction of endotracheal intubation adopt traditional VCV.After cardiopulmonary bypass,group A continued to undergoing VCV for 30 minutes followed by PCV for a similar duration,and group B underwent PCV initially for 30 minutes followed by VCV for a similar duration.Arterial blood glass and airway pressure were obtained at the end of each ventilation mode.Artery partial pressure of carbon dioxid(PaCO2),artery partial pressure of oxygenation (PaO2) and artery oxygen saturation (SaO2) were recorded.Results Compared with VCV before CPB,PaO2 was descended[(179.4±100.4)mm Hg vs (235.7±121.2)mm Hg],mean airway pressure(Pmean)[(10.4± 2.2)cm H2O vs (8.7±1.8)cm H2O] and peak airway pressure (Ppeak)[(20.2±3.6)cm H2O vs (18.3±3.0)cm H2O] were ascended by VCV and PCV after CPB (P＜0.05);compared with VCV after CPB,Pmean (8.7±1.8)cm H2O and Ppeak(18.3±3.0)cm H2O were descended by PCV after CPB(P＜0.05),and PaO2 (235.7±121.2)mm Hg was ascended (P＜0.05);compared with VCV before CPB,PaCO2,SaO2 showed no significant differences by VCV and PCV after CPB(P＞0.05).Conclusion Compared with VCV after cardiopulmonary bypass of DeBakey type Ⅰ aortic dissection surgery,PCV is able to improve oxygenation and decrease lower airway pressure,so it can prevent aggravate airway injury.
Keywords：Cardiopulmonary bypassPressure controlled ventilationVolume controlled ventilationArterial blood glassAirway pressure
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1116-1119 )