انسداد القناة الدمعية الأنفية: ماذا تفعل عندما يفشل الفحص بالمسبار في استعادة سالكية القناة

References

• A variety of treatment options are available for children requiring repeat surgery.
• Some surgeons simply repeat probing as a first choice.
• Lacrimal stents are used to reduce the risk of recurrent stenosis of the NLD duct.
• They are usually reserved for patients who have persistent symptoms after initial NLD probing.
• Stents are usually left in place for 2-6 months.
• During balloon catheter dilation (BCD), a stent with a balloon at its distal end is passed into the distal nares, the balloon is inflated (typically two times in both the proximal and distal duct), then deflated and removed.
• Infracture of the inferior turbinate, usually done with an instrument such as a periosteal elevator or a hemostat, is sometimes used to decrease the resistance of drainage in the distal nasolacrimal duct.
• If found, distal NLD cysts can be removed with alligator forceps or other instruments via the nostril.