Endoscopic transnasal canaliculorhinostomy for refractory common canalicular obstruction with an unidentifiable lacrimal sac

Endoscopic transnasal canaliculorhinostomy for refractory common canalicular obstruction with an unidentifiable lacrimal sac

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AIM: To describe the role of endoscopic transnasal canaliculorhinostomy (ETC) in refractory common canalicular obstruction (CCO) associated with an absent or unidentifiable lacrimal sac.METHODS: The records of patients with refractory CCO who underwent ETC at the Eye Hospital of Wenzhou Medical University from October 2007 to December 2016 were retrospectively reviewed.RESULTS: Fifty-six patients (56 eyes) with refractory CCO were recruited into the study.Eight patients were excluded due to the presence of a residual lacrimal sac or failure to complete the follow-up duration.The Bowl Adapter anatomic and functional success rates were both 85.

4% (41/48) at a mean follow-up of 18.6mo.Five cases failed as a result of ostial synechia and two failed because of ostial obstruction by granulation.Postoperative complications included mild nasal bleeding in 5 cases, dried nasal feeling in 8 cases, and olfactory dysfunction in 4 cases.CONCLUSION: Although being surgically challenging, ETC has comparable findings to its external approach counterpart or conjunctivodacryocystorhinostomy (CDCR) with Boys Hawaiian shirts Jones tube.

And it may prove to be a novel alternate surgical technique for patients with refractory CCO without identifiable lacrimal sac.