Dr.Namrata Shree

Dr.Rajneel Bhattacharjee

Abstract

AIM
To comparatively evaluate the surgical outcome of external dacryocystorhinostomy with two different flap techniques (H/
double vs U/single) with respect to surgical time.
STUDY DESIGN
Prospective randomized comparative clinical study
MATERIAL AND METHOD
96 patients of primary NLD block were selected. 47 underwent
the conventional DCR by 'H' Shaped flap and 49 by 'U' Shaped
flap with suspension to the orbicularis. Success rate was evaluated
by lacrimal patency to irrigation and surgical time was calculated
from skin incision to skin suturing. Statistical analysis was done
by Chi-square test, T-test and Fisher's exact test.
RESULTS
Success rate in groups A and B was 93.62% and 95.91% respectively.
Surgical time difference between the groups was statistically
significant with t =7.2031, p= 0.01 (<0.05) while difference in
complication rate was not significant (X2 test=0.733 p=0.391)