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Subject Area

Otorhinolaryngology

Article Type

Original Study

Abstract

Objective The aim was to assess the impact of ostium size on endoscopic dacryocystorhinostomy success and determine the ideal ostium size that can provide a sufficient postoperative ostium patency. Materials and Methods Four databases were searched in this study, including Scopus, PubMed, Google Scholar, and Web of Science from January 2000 to December 2020. Studies assessed anatomical success by measuring ostium dimensions and functional success by irrigation and dye-disappearance test after endoscopic dacryocystorhinostomy for patients with nasolacrimal duct obstruction. If the studies did not meet inclusion criteria, they were excluded, for example, external dacryocystorhinostomy or assessment without measuring ostium dimensions through follow-up. Study-quality assessment included whether ethical approval was gained, eligibility criteria specified, adequate information, and defined assessment measures. Comparisons were made by structured review with the results tabulated. Findings In total, 10 potentially relevant publications were included, an ostium measuring greater than or equal to 8 × 5 mm should be a satisfactory large size. There is no significant shrinkage of the ostium after the fourth week of the operation. Conclusion Functional success should be considered when evaluating the overall success of dacryocystorhinostomy. An anatomically patent ostium is required, while it is believed that ostium size does not affect functional surgical success.

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