Objective  To explore the clinical efficacy and safety of blind insertion of bronchial occluder for children with one-lung ventilation under the guidance of tracheal catheter obliquely facing right or left.

  Methods  A total of 70 children undergoing right thoracotomy in our hospital were selected as study subjects, and were randomly divided into observation group (trachea tube inclined to right) and control group (trachea tube inclined to left), with 35 cases in each group. The baseline data and related clinical indexes, and the incidence of postoperative complications were compared between the two groups.

  Results  There was no significant difference in baseline data between the two groups (P>0.05). The blocking time in the observation group was significantly shorter, the rate of one-time success rate was higher, and the incidences of airway edema and hypoxemia after operation were significantly lower than that in the control group (P < 0.05).

  Conclusion  The adjustment of the opening slope of the tracheal catheter to the right can effectively shorten the total time-consuming of plugging, improve the one-time insertion success rate, and reduce the incidence of postoperative complications.