关键词: Arndt支气管内阻断器, 双腔支气管导管, 小儿, 单肺通气

Abstract: Objective To compare the effect of Arndt endobronchial blocker and double-lumen tube on one lung ventilation in children undergoing thoracic surgery.Methods Fourty children undergoing thoracic surgery were divided into Arndt endobronchial blocker group(Group A,n=20) and double -lumen tube group (Group D,n=20) randomly. Anesthetic management and lung isolation were performed according to a standardized protocol.The changes of MAP,HR,PetCO₂ and Paw were recorded at the following time point,intubation tube before(T₁),intubation tube(T₂),double lung ventilation(T₃),one lung ventilation(T₄).The intubation time,lung collapse time,one lung ventilation time,hypoxemia duration of surgery and adverse event and others were recorded. Results Arndt endobronchial blocker group compare with double-lumen tube group,the Paw and PetCO₂ were lower at the time of one lung ventilation (P<0.05); the intubation time was shorter (P<0.05); the time of lung collapse was longer (P<0.05); and the lung collapse score was higher (P<0.05). Conclusion Compared with inserting double-lumen tube blind, Arndt endobronchial blocker inserted by fiber bronchoscope can provide better one lung ventilation in children undergoing thoracic surgery.

Key words: Arndt endobronchial blocker, double-lumen tube, children, one lung ventilation