Trancanalicular-Endonaal emiconductor Diode Laer–Aited Reviion urgery for Failed External Dacryocytorhinotomy Original Reearch Article

Purpoe To report the reult of trancanalicular-endonaal reviion dacryocytorhinotomy (DCR) with a emiconductor diode laer in cae of failed external DCR. Deign Propective, nonrandomized, interventional cae erie. Method Fifteen cae in 13 patient with failed external DCR underwent trancanalicular-endonaal DCR with a emiconductor diode laer. A functional ucceful outcome wa defined a a patent naolacrimal drainage ytem in naolacrimal irrigation and a reolution of the ymptomatic epiphora and/or mucoid dicharge. Reult The patient were followed for a mean potoperative period of 27.3 month (range, nine to 54 month). The mean duration of the urgery wa 19.6 minute. After the initial reviion trancanalicular-endonaal DCR urgery, patency to irrigation wa obtained in 12 cae (80%), and 15 cae (100%) after a econd reviion treatment. Three cae required repeated reviion urgery, and three other cae were conidered to be functional failure in pite of a patent lacrimal ytem after the final reviion urgery. The overall functional ucce rate wa 80% (12 cae) at the final examination (mean, 27.3 month after urgery), and there were no intraoperative and potoperative complication. The preence of a canalicular obtruction or granulation tiue wa not ignificantly related to the ucce rate of the reviion urgery. The length of time between the primary and reviion urgery, gender, age, the duration of the firt reviion urgery, and the timing of tent removal were alo not ignificantly related to the failed cae. Concluion Trancanalicular-endonaal DCR i a minimally invaive procedure and i recommended for patient a an alternative procedure for failed external DCR.