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Updated: Apr 14, 2026
Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
Published on: October 13, 2017
Eight-flap anastomosis in external dacryocystorhinostomy
Yasuhiro Takahashi1, Yasuhisa Nakamura1, Hirohiko Kakizaki1
1Department of Ophthalmology, Aichi Medical University, Aichi, Japan.
Aims:
To examine the surgical outcome of external dacryocystorhinostomy (DCR) with eight-flap anastomosis (8-flap ex-DCR).
Methods:
A retrospective chart review was performed for 55 sides of 51 patients with nasolacrimal duct obstruction who underwent 8-flap ex-DCR. The patients were followed up postoperatively at 1, 2, 4, 8 and 12 weeks, and evaluations were continued with 12-week follow-ups until postoperative 12 months. Anatomical success was defined as no reflux on lacrimal irrigation at 12 months. Functional success was defined as no epiphora at postoperative 12 months. The presence of epistaxis and postoperative surgical site infections were checked in all patients. The presence of granulation tissue around the ostium, under nasal endoscopy, was also examined on 14 sides of 14 patients, at each visit.
Results:
Anatomical success was demonstrated on all sides, and functional success was obtained from 54 sides (98.2%) of 50 patients. One patient experienced postoperative intermittent epiphora on one side. The patients did not show granulation tissue, epistaxis or surgical site infection throughout the observation period.
Conclusions:
The 8-flap ex-DCR showed complete anatomical success and favourable functional success with no postoperative complications.
