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Prospective randomized comparative study of external dacryocystorhinostomy and endonasal endoscopic dacryocystorhinostomy

Markandeya Tiwari, Swayamsidha H. Andhale, Sandesh Chodankar and Ugam Usgaonkar

Aims and objectives: To compare the success rate and complications between external and endonasal DCR. Materials and methods: The study included 50 cases in 49 patients. They were randomized into 2 groups. Group A for external DCR and group B for endonasal DCR. Post op evaluation was done after 1st & 2nd week and 2nd& 3rd month for presence or absence of watering or discharge and patency of sac was assessed by syringing. Results: We had equal success in group A and group B of 22 cases each (88%). Most common cause of failure in group A was excessive scarring whereas in group B was obstruction of rhinostomy by granulation tissue. Discussion: The primary success rate with external or endonasal DCR is found to be the same. The complications in both the procedures were very few and occurred at a very low rate. Conclusion: Both methods represent good alternatives of treatment for Primary nasolacrimal sac and duct obstruction or chronic dacryocystitis..

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