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Abstract ID: 24-163
Transcanalicular endoscopic microdrill dacryoplasty in canalicular stenosis
Beatrice Braun Fraenkl
Purpose
Transcanalicular microdrill dacryoplasty (MDP) is a minimally invasive surgical approach for canalicular and nasolacrimal duct obstruction (NLDO). We present our long-term results in canalicular stenosis.
Methods
Medical records of 40 patients (50 eyes) with MUNK IV epiphora and pre-dominantly canalicular stenosis were assessed between 6/2021 until 02/24. Two experienced oculoplastic surgeons performed surgery using a single-channeled microendoscope (outside diameter 1.1 mm, Vitr-Optik/Polydiagnost) including microdrill, optic fibre and irrigation. Evaluation included following parameters: age, gender, type of stenosis, prior lacrimal duct surgery, short- and long-term subjective and objective success rate and complication rate.
Results
40 patients were evaluated, 10 patients treated bilaterally, MDP treatment focused on the canalicular part. Mean follow up time was 12 months. Success rate after six months was 75%, after 12 months 70%. Three patients underwent further surgery (dacryocystorhinostomy) and two patients repeated the intervention. No complications occurred. There is a technical learning curve for staff.
Conclusion
MDP is a helpful minimal invasive approach to visualize and treat lacrimal duct obstructions, particularly also canalicular stenosis and longer-segment stenosis. The complication rate is very low.
Additional Authors
Philip Rechl – University Hospital of Zurich, Eye Clinic
Karla Chaloupka – University Hospital of Zurich, Eye Clinic
– University Hospital of Zurich, Eye Clinic