Abstract
Introduction Meniere's disease (MD) remains a difficult disease to diagnose, especially in the
early stages when not all of the symptoms may be present. Sensorineural hearing loss,
tinnitus, and recurrent vertigo constitute the hallmark symptoms of MD. Endolymphatic
hydrops (EH) has been described as the responsible pathology in MD. Since that description,
the medical and surgical treatment of MD have been directed at reducing the volume
of endolymph. Unfortunately, these approaches have had equivocal success in the control
of vertigo and recovery of hearing. So, a routine treatment directed at resolution
of EH may not be suitable for all patients. Treatment has to be directed at the cause
of EH whenever possible.
Objectives The aim of this study was to define new findings in clinical tests and modes of treatment
in MD, to determine the outcome of vertigo and hearing in patients after treatment,
and to describe treatment which will prevent long term deterioration of hearing.
Materials and Methods Forty-six new patients with a diagnosis of MD were treated with antiviral drugs or
diuretics. Drugs were used based on nature of dehydration test. Hearing test including
pure tone average (PTA) and speech discrimination (SD) was performed prior to treatment
and at 1 to 2 months, 6 months, and 1 year after initiation of treatment. Effect on
dizziness was recorded at each evaluation; hearing was judged to be improved, if PTA
was lowered by at least 10 to 15 dB or an increase in SD > 20%.
Results The antiviral approach has virtually eliminated the use of various surgical methods
used in the past. Dehydration test-based treatment protocol with diuretics and antivirals
and antimigraine prophylaxis when needed has led to remission of disease in 93.5%
of patients. With prompt treatment, inner ear damage can be prevented.
Conclusion Orally administered antiviral drugs should be considered in the treatment of MD.
Migraine-associated MD patients need migraine prophylaxis and this will lead to improvement
in Meniere’s symptoms also. If Intratympanic therapy is considered, then targeted
low-dose delivery method of using Gelfoam instillation of gentamicin is preferable
according to our study to prevent any significant hearing loss.
Keywords
antivirals - balance diseases - dehydration test - intratympanic treatment - migraine
