新型隐匿性泪道支撑管治疗儿童泪小管断裂

目的评价新型隐匿性泪道支撑管置入治疗儿童外伤性泪小管断裂的效果。方法采用全身麻醉，以新型隐匿性泪道支撑管为载体手术显微镜下吻合新鲜儿童外伤性泪小管断裂40例（40眼），术后保留支撑管3个月，拔管后再随访3个月。结果术中40例全部成功吻合。留置的支撑管无意外脱落现象。术后3个月拔管时，35例（87．5％）治愈；4例（10．0％）好转，轻度溢泪，泪道不畅；1例（2．5％）未愈，下睑外翻，溢泪泪道不通。拔管3个月后，38例排泪正常，治愈率为95％；其中1例（2．5％）好转，轻度溢泪，泪道不畅；1例（2．5％）未愈，皮肤瘢痕和下睑外翻，明显溢泪症状，泪道不通。结论利用新型隐匿性泪道支撑管治疗儿童外伤性泪小管断裂是一个可行的治疗方式。

New hidden silicone lacrimal stent used in anastomosis for traumatic canalicular laceration in children

Objective To assess the effect of the hidden silicone lacrimal stent implantation in an- astomosis for pediatric traumatic canalicular laceration under operating microscope. Methods Forty eyes of 40 patients were general anaesthetized. Then the silicone lacrimal stent was intubated to support the lacerated lacrimal canaliculus under the operating microscope. The stent was kept in the lacrimal passage for 3 months postoperatively, and the patients were followed-up for another 3 months after the stent was removed. Results All 40 children with traumatic eana/icalar laceration were anastomosed successfully. The accidental fall off of the stent was not observed during the follow-up. When the stent was removed, 35 cases （87.5%） recov- ered to normal lacrimal drainage function; 4 case （10%） remained epiphora with obstructed lacrimal pas- sage; 1 case （2.5%） with line scar formed in the inner canthus skin, accompanied with lower eyelid ectro- pion and lacrimal passage obstruction. Three months after the stents were removed, 38 cases （95%） recov- ered to normal lacrimal drainage function; 1 case （2.5%） complained epiphora with obstructed lacrimal passage; 1 case （2.5%） was with skin scar formed and lower eyelid ectropion and lacrimal passage obstruc- tin. Conclusion For traumatic canalicular laceration in children, the new hidden silicone lacrimal stent is safe and suitable to support the lacerated lacrimal canaliculi in the anastomosis surgery.