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Abstract
Purpose: To evaluate the outcomes of external dacryocystorhinostomy (DCR) by using two different patterns of flap anastomosis; one only with anterior flap anastomosis and the other with both anterior and posterior flap anastomosis.
Methods: One hundred and sixty-four patients were enrolled in the study. Patients were then randomly divided into two groups as follows: those who underwent DCR with both anterior and posterior flap anastomosis (Group 1) and those who underwent DCR with only anterior flap anastomosis (Group 2). Surgical success was defined as patient satisfaction, disappearance of epiphora and lacrimal patency up to 12 months after surgery.
Results: After 12 months, the DCR with both anterior and posterior flap anastomosis had a success rate of 89.8% (71/79), while the DCR with only anterior flap anastomosis had a success rate of 89.4% (76/85). There was no statistically significant difference between the two groups (p < 0.05).
Conclusion: Anastomosis of posterior flaps does not seem to affect success rate of external DCR. Creating only the anterior anastomosis is technically simpler and does not seem to negatively influence the outcome of DCR surgery.
Declaration of interest: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.