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Endoscopic dacryocystorhinostomy with and without bicanalicular silicone tube in patients with a small lacrimal sac: a comparative study

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B. Yu - B. Mao - Y. Tu - M. Wang - W. Wu

BACKGROUND: To establish whether bicanalicular silicone tube intubation is required during endoscopic dacryocystorhinostomy (En-DCR) for treating chronic dacryocystitis with a small lacrimal sac. METHODS: In total, this study enrolled 264 patients diagnosed with unilateral chronic dacryocystitis with small lacrimal sacs via computed tomography-dacryocystography that underwent En-DCR from March 2016-September 2020. Patients were randomized into two treatment groups, with those in group A undergoing tubes intubation and those in group B not undergoing this procedure. The tubes were removed 3 months post-operation in group A. Surgical outcomes and related complication rates were then compared. RESULTS: This study included 242 patients, including124 and 118 in groups A and B, respectively. At the three-month follow-up time point, 12.90% of patients in group A exhibited ostial granulation tissue, with this frequency with no differences observed in group B (11.86%). At 6 months post-surgery, 80.65% of patients in group A and 72.88% of patients in group B exhibited successful surgical outcomes, with no significant differences between groups. At 9 months postoperatively, the overall effective success rate was 60.74%, and the success rate was significantlyhigher in group A relative to group B (group A: 75.81%; group B: 44.92%). There were no failed patient outcomes observed as of the 12-month follow-up time point. CONCLUSIONS: While En-DCR-based treatment of chronic dacryocystitis in those with smalllacrimal sacs did not yield satisfactory outcomes with respect to the overall effective success rate, these results suggest that intraoperative intubation may improve success rates in long-term follow-up.

Rhinology 0-0: 0-0, 0000

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