Mian Muhammad Afzal, Asim Mehmood, Rehan Maqbool, Irfan Qayyum Malik, Abdul Rehman.
To compare the success rate of External Dacryocystorhinostomy with and without Silicon Intubation in patients of nasolacrimal duct obstruction.
Pak J Med Health Sci Jan ;8(1):79-81.

Aim: To compare the success rate of External Dacryocystorhinostomy with and without Silicon Intubation in patients of nasolacrimal duct obstruction. Methods: A prospective comparative study was done on 80 patients at DHQ Hospital / Gujranwala Medical College between 1st January 2013 and 31st December 2014. All the patients were divided in two groups with the help of random number table. 40 patients in Group A underwent Dacryocystorhinostomy with silicon intubation and 40 patients in Group B underwent Dacryocystorhinostomy without silicon intubation. Results: At the end of my study the success rate was 80.0% in group A (Dacryocystorhinostomy without silicon intubation) and 92.5% in group B (Dacryocystorhinostomy with silicon intubation) in total of 80 patients with 40 patients in each group. The p value was less than 0.05 and by conventional criteria; this difference is considered to be extremely statistically significant Conclusion: There are more chances of success of External Dacrocystorhinostomy with silicon intubation than External Dacrocystorhinostomy without silicon intubation in patients of nasolacrimal duct obstruction.

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