[The effects of pressure controlled ventilation for tracheobronchial foreign body removal in children]

Abstract

Objective:To evaluate the effects of pressure controlled ventilation for tracheobronchial foreign body removal in children.Method: Ninety ASAⅡor Ⅲ children,aged 10 months to 3 yr,weighing 8-16 kg undergoing removal of airway foreign body were randomly divided into 3 groups(n=30 each):groupⅠpressure controlled ventilation(P)，group Ⅱ high-frequency jet ventilation(H),and group Ⅲ, reserve spontaneously breathings.Arterial blood gas analysis of Pre-operation and the end of operation,the occurrence of hypoxia during operation,the duration of operation,anesthesia emergence time and perioperative side effects were recorded. Result:The arterial blood gas analysis(PaO₂,PaCO₂,SaO₂)and SPO₂of Pre-operation in group P and H had no significant difference. The PaO₂ of the end of operations was significantly higher,and PaCO₂ was lower in group H. The occurrence of hypoxia during operation, the duration of operation,anesthesia emergence time and perioperative side effects in two group had no significant difference.Conclusion:The effects of pressure controlled ventilation and high-frequency jet ventilation for tracheobronchial foreign body removal in children were nearly the same,and pressure controlled ventilation can be commonly used in clinic.

Keywords: children; high-frequency jet ventilation; pressure controlled ventilation; tracheobronchial foreign body.