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Dacryocystorhinostomy clinical trials

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NCT ID: NCT03705000 Suspended - Epiphora Clinical Trials

SLlt Stent II Lacrimal Stent for the Treatment of Nasolacrimal Duct Obstruction

SLINDO
Start date: October 1, 2020
Phase: N/A
Study type: Interventional

This project aims to test whether a newly designed lacrimal stent - the SlitStent - when placed into the lacrimal system in the standard fashion following a DCR surgery, will provide good symptomatic relief for epiphora and be well tolerated. Epiphora, or severe tearing, is both a very common debilitating symptom and a potential cause of dangerous infections (i.e. dacryocystitis and orbital cellulitis). DCR+lacrimal stenting surgery is 80-95% successful at improving epiphora, and the longer the stent remains in place, the better the long-term outcome. However, lacrimal stents that provide adequate circumferential force to facilitate post-DCR healing also occupy space and prevent good tear drainage until removed. Yet patients want complete symptomatic improvement as soon as possible, even if it compromises long-term results. This study aims to test a newly designed lacrimal stent that allows tears to drain through the lumen of the stent. The new stent is constructed by modifying a commercially available stent by placing openings along the side of the stent using a process developed by a University of Michigan engineer/collaborator. Following slit placement, the stent will be gas-sterilized for surgery. Patient who are scheduled for DCR+stenting surgery who provide informed consent will be randomized 2:1 to receive the investigational SlitStent or the standard commercially available stent. Following surgery, patients will be assessed both clinically, which is standard of care, and via a patient questionnaire.