ABSTRACT
Objective To compare the bronchial blocker and double-lumen tube for one-lung ventilation in patients undergoing esophageal cancer resection.Methods Forty ASA physical status Ⅰ-Ⅲ patients of both sexes,aged 42-63 yr,scheduled for elective esophageal cancer resection,were randomly divided into 2 groups (n =20 each):double-lumen endotracheal tube group (group DLT) and bronchial blocker group (group BB).After induction of anesthesia,the patients were intubated with a left-sided double-lumen endotracheal tube and correct positioning was verified by fiberoptic bronchoscopy in group DLT.After induction of anesthesia,the patients were intubated with a conventional single-lumen endotracheal tube,and then the bronchial blocker was inserted under the guidance of fiberoptic bronchoscope in group BB.The intubation time,one-lung ventilation time,time to achieve lung collapse,operation time,extubation time,tube malposition and hypoxemia were recorded.The lung collapse was scored at the end of operation.Hoarseness and throat sore within 2 days after extubation and pulmonary infections within 7 days after operation were recorded.Results Compared with group DLT,intubation time and time to achieve lung collapse were significantly prolonged,and the incidence of hoarseness and throat sore within 2 days after extubation was decreased in group BB (P ＜ 0.05).There was no significant difference in the one-lung ventilation time,operation time,extubation time,lung collapse score,incidence of tube malposition,hypoxemia and pulmonary infections within 7 days after operation between the two groups (P ＞ 0.05).Conclusion The efficacy of bronchial blocker is similar to that of double-lumen tube when used for one-lung ventilation in patients undergoing esophageal cancer resection.