Results
One hundred and thirty patients with granular myringitis were enrolled.
47/130 (36.1%) had previous otologic procedures. Frequent ototrrhea is
the most common symptom (66.1%). Posterior-inferior quadrant is the
most common site of involvement (58%). The successful rate of
CO2 laser, caustic agent were 94.9% and 79.2%. The
recurrence rate was comparable between CO2 laser and
caustic agent. No major complication was found in either individual
group.
Conclusion :
Otologic procedure may be a predisposing factor of focal chronic
myringitis. Ear drops had poor efficacy compared to other treatments. It
can be apply only on minor and fresh symptom cases. In this study, we
suggest CO2 laser can be the first line treatment,
especially for the troublesome or refractory GM cases, which had the
higher successful rate and less complication comparing to caustic agent
cauterization.