Endoscopic Versus Microscopic Type I Cartilage Tympanoplasty for
Anterior Perforation-A Prospective Comparative Study
Abstract
Objective Chronic otitis media with anterior perforation is a
challenging condition to treat with a microscope especially if the canal
is narrow or has overhang. The endoscope provides the advantage of
wide-angle view and transcanal access avoiding postaural approach and
canaloplasty. The aim of this study was to compare the anatomical,
functional outcomes, and surgical duration between endoscopic and
microscopic type I tympanoplasty performed for anterior perforation
Design Prospective comparative study Setting Tertiary Referral Hospital
Participants A total of 100 cases with anterior perforations were
enrolled which was divide into two groups, the microscopic (MT) and the
endoscopic (ET) with 50 cases in each group. Main outcome measures Graft
uptake rate, hearing outcomes and surgical durations were compared
between the two groups. Results The graft uptake in MT and ET was 81.8%
and 91.3% respectively, statistically not significant. The mean
operative time for MT and ET was 68.68±18.79 minutes and 61.24 ± 11.18
minutes respectively with statistically significant difference
(p-0.003). Hearing outcomes were improved after the surgery within the
groups. However, there was no significant difference in the hearing
between the groups. Conclusions The endoscopic tympanoplasty for
anterior perforation provides superior visualization avoiding postaural
incision and canaloplasty, with good graft closure rate, improved
hearing. It also offers significantly faster completion of surgery than
a microscope. Thus, with the endoscope, minimally invasive surgery can
be performed. Key points • Anterior perforations are challenging
condition and difficult to treat, carrying poor prognosis than central
or posterior perforations. • Microscope provide straight line of vision,
making it difficult to access anterior perforations. • Endoscope
provides wide angle view, high magnification and high definition image
which avoids postaural incision or canaloplasty for anterior perforation
repair. • Transcanal Endoscopic ear surgery provides advantage of
performing minimally invasive surgery. • It indirectly lessens the
financial burden to the patient which is significant in the developing
countries.