Abstract:

Objective To observe the efficacy and application value of the lacrimal duct probing combined with the ball head type lacrimal duct expansion drainage tube implantation for the nasolacrimal duct obstruction. Design Retrospective case series. Participants 152 patients (152 eyes) with chronic nasolacrimal duct obstruction in Qiqihaer Wuguan Hospital. Methods The 152 cases were randomly divided into observation group (76 cases) and control group (76 cases). The dacryocystorhinostomy surgery was performed in the control group, and the lacrimal duct probing combined with the ball head type lacrimal duct expansion drainge tube was performed in the observation group. Then the curative effect, scarring rate, the bleeding volume and the operation time were recorded. Cure was defined when the postoperation syringing of lacrimal passages was smooth and no epiphora. Improving was defined when the part reflux or no epiphora or a little was visible through postoperative lacrimal duct flushing. Failure was defined when no effected or even worse than before. Main Outcome Measures The total effective rate, scar formation rate, bleeding volume and operation time. Results The total efficiency in the observation group and the control group was 80.26% and 89.47%, respectively (P=0.756). The scar formation rate in the observation group (zero) was significantly lower than that in the control group (22.37%) (P=0.006). The bleeding volume of observation group (10.53±3.20 ml) was significantly less than the control group (50.20±10.21 ml) (P=0.000). The operation time of observation group (10.01±5.41 min) was significantly shorter than in the control group (58.05±12.19 min) (P=0.000, 0.000). Conclusion The curative effect of the lacrimal duct probing combined with the ball type lacrimal expansion drainage tube implantation for the treatment of naso lacrimal duct obstruction is equal to that of the dacryocystorhinostomy, but which can reduce the postoperative scar, shorten the operation time, easy to be accepted by patients, worthy to be popularized  in clinic.

Key words: nasolacrimal duct obstruction, lacrimal duct probing, ball head type lacrimal duct expansion drainage tube