Tsugihisa Sasaki1, Yuuko Nagata, Kazuhisa Sugiyama. 1. Department of Ophthalmology, Kanazawa University School of Medicine, Kanazawa, Ishikawa 920-8641, Japan. sasatsug@med.kanazawa-u.ac.jp
Abstract
PURPOSE: To report the performance of a newly devised technique, inferior meatal dacryorhinotomy (iDR), for membranous PNLDO (lower PNLDO). DESIGN: Retrospective, nonrandomized clinical trial. METHODS: Forty cases (37 patients) who ranged in age from 42 to 89 years old with lower PNLDO were treated by iDR, which is intubation that is assisted by dacryoendoscope, nasal endoscope, and radio-frequency scalpel. The obstructed site was incised with a radio-frequency scalpel without osseous ablation, after which silicone tubes were placed temporarily. RESULTS: Postoperative follow-up evaluation showed that the success rate was 87.5% after 6 months to 2 years. CONCLUSION: The iDR technique is minimally invasive and effective for lower PNLDO.
PURPOSE: To report the performance of a newly devised technique, inferior meatal dacryorhinotomy (iDR), for membranous PNLDO (lower PNLDO). DESIGN: Retrospective, nonrandomized clinical trial. METHODS: Forty cases (37 patients) who ranged in age from 42 to 89 years old with lower PNLDO were treated by iDR, which is intubation that is assisted by dacryoendoscope, nasal endoscope, and radio-frequency scalpel. The obstructed site was incised with a radio-frequency scalpel without osseous ablation, after which silicone tubes were placed temporarily. RESULTS: Postoperative follow-up evaluation showed that the success rate was 87.5% after 6 months to 2 years. CONCLUSION: The iDR technique is minimally invasive and effective for lower PNLDO.