{"title":"A Novel Snake-chain Metal Probed Silicon Intubation Set for Nasolacrimal Duct Intubation: A Cadaveric Feasibility Study.","authors":"Omar M Solyman, Saul N Rajak","doi":"10.4103/meajo.meajo_32_24","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>A fresh-frozen human cadaveric feasibility study to investigate the feasibility of probing and stenting the nasolacrimal ducts (NLDs) of human cadavers with a novel flexible bicanalicular nasolacrimal stent.</p><p><strong>Methods: </strong>A custom-designed bicanalicular nasolacrimal stent was made by connecting a 250 mm long, 0.9 mm diameter silicone tube to a 200 mm long stainless-steel, snake-chain probe at each end. The punctum was dilated, and the snake-chain stent fed into the nasolacrimal drainage system. The emergence of the stents from the terminal end of the NLD and retrieval with a ball probe was conducted under endoscopic guidance.</p><p><strong>Results: </strong>Bicanalicular nasolacrimal stenting with intranasal retrieval under endoscopic guidance was successfully achieved in six NLDs of three adult cadaveric nasolacrimal drainage systems.</p><p><strong>Conclusion: </strong>Despite being soft and flexible, the snake-chain silicon stent passes smoothly and freely through cadaveric human NLD and is easily retrieved from the nasal cavity. This novel NLD stent design may make stenting of the NLD easier and less traumatic.</p>","PeriodicalId":18740,"journal":{"name":"Middle East African Journal of Ophthalmology","volume":"30 3","pages":"164-167"},"PeriodicalIF":0.5000,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11495287/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Middle East African Journal of Ophthalmology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4103/meajo.meajo_32_24","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2023/7/1 0:00:00","PubModel":"eCollection","JCR":"Q4","JCRName":"OPHTHALMOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose: A fresh-frozen human cadaveric feasibility study to investigate the feasibility of probing and stenting the nasolacrimal ducts (NLDs) of human cadavers with a novel flexible bicanalicular nasolacrimal stent.
Methods: A custom-designed bicanalicular nasolacrimal stent was made by connecting a 250 mm long, 0.9 mm diameter silicone tube to a 200 mm long stainless-steel, snake-chain probe at each end. The punctum was dilated, and the snake-chain stent fed into the nasolacrimal drainage system. The emergence of the stents from the terminal end of the NLD and retrieval with a ball probe was conducted under endoscopic guidance.
Results: Bicanalicular nasolacrimal stenting with intranasal retrieval under endoscopic guidance was successfully achieved in six NLDs of three adult cadaveric nasolacrimal drainage systems.
Conclusion: Despite being soft and flexible, the snake-chain silicon stent passes smoothly and freely through cadaveric human NLD and is easily retrieved from the nasal cavity. This novel NLD stent design may make stenting of the NLD easier and less traumatic.
期刊介绍：
The Middle East African Journal of Ophthalmology (MEAJO), published four times per year in print and online, is an official journal of the Middle East African Council of Ophthalmology (MEACO). It is an international, peer-reviewed journal whose mission includes publication of original research of interest to ophthalmologists in the Middle East and Africa, and to provide readers with high quality educational review articles from world-renown experts. MEAJO, previously known as Middle East Journal of Ophthalmology (MEJO) was founded by Dr Akef El Maghraby in 1993.
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