Clinical study on special lacrimal duct intubation system in the treatment of children with recurrent lacrimal duct obstruction

Objective To study the effect of probe of lacrimal duct dilatation combined with endoscopic lacrimal duct intubation on children with recurrent lacrimal duct obstruction. Methods From December 2013 to March 2015, probe of lacrimal duct dilatation combined with endoscopic lacrimal intubation in the treatment of recurrent lacrimal duct obstruction in 84 cases(106 eyes). The average age was 22 months, and the follow-up was 3-16 months. Analysed the age, the number of lacrimal passage, effect of the cure rate lacrimal duct obstruction. Using the Pearson correlation coefficient calculation and the independent samples t test for statistical analysis. Results Among the 84 cases(106 eyes), cured in 98 eyes, the total cure rate was 92.45%(98/106), and the total effective rate was 100%(106/106). The age factor: in 6-12 months, 12-24 months, 24-36 months, more than 36 months of age groups, the cure rate was 97.22%(35/36), 95.45%(42/44), 88.89%(16/18), 62.50%(5/8)(R=-0.968, P=0.0022); Probing of lacrimal passage number of factors: 1 time of recurrent lacrimal surgery, 2 times probing of lacrimal passage postoperative recurrence and 2 times more probing of lacrimal passage postoperative recurrence, the cure rates was 95.35%(82/86), 86.67%(13/15), 60.00%(3/5)(R=-0.982, P=0.0014); Nasolacrimal duct obstruction factors: one block and more than one time blocks 2 groups, the cure rates was 98.44%(63/64), 83.33%(35/42)(P=0.0003). Conclusions Probe of lacrimal duct dilatation combined with endoscopic lacrimal duct intubation in the treatment of children with recurrent lacrimal duct obstruction has remarkable curative effect, the operation is simple and has high security. The cure rate decreased with the increase of age. The cure rate decrease with the increase of the number of times. The cure rate decrease when lacrimal duct obstruction is complicated. Key words: Children; Nasolacrimal duct; Lacrimal duct obstruction; Lacrimal duct intubation; Lacrimal duct dilatation