CIDPUSA.org Autoimmune diseases
Antiphospholipid inner ear syndrome Mouadeb DA,
Department of Otolaryngology, University
of California-Davis, Sacramento, California, USA.
OBJECTIVE: This study was initiated to clarify the
possible association between antiphospholipid antibodies,
CONCLUSIONS: These data support the hypothesis that
antiphospholipid antibodies are involved in the pathogenesis of
some forms of inner ear dysfunction, presumably by causing
microthrombus formation in the labyrinthine vasculature. Basic
science studies are required to better understand the mechanisms
by which antiphospholipid antibodies mediate inner ear
dysfunction. Clinical studies to evaluate the efficacy of
anticoagulation in this group of patients are also required.
Autoimmune inner ear disease
(AIED) was first described in 1979 and the disease has
become more widely recognized over the last decade.
Limited information is available regarding clinical
features of the disease, disease course, and response to
treatment.
OBJECTIVE:
To analyze data from 42
patients with documented immune mediated inner ear
disease to further define this syndrome.
METHODS:
A retrospective chart review
was conducted on all patients considered to have AIED by
the Otolaryngology division physicians and on all
patients positive for antibody testing to inner ear
antigens from 1990 to 1999. Patients who were antibody
positive with a clinical diagnosis of AIED were included
in this review.
RESULTS:
Patients with AIED presented
with rapidly progressive, frequently bilateral (79%),
often fluctuating sensironeural hearing loss. Mean age
at presentation was 50 years (22-80) with no gender
predilection. Tinnitus (83%), vestibular complaints
(79%), and Menieres (50%) were common concomitant
symptoms along with hearing loss. Seven of 42 (17%) of
the patients had evidence for other systemic autoimmune
disorders. In 4 of the patients the onset of
vestibuloauditory complaints preceded the diagnosis of
autoimmune disorder. Thirty-three of 42 demonstrated
antibodies to inner ear antigens but other
autoantibodies were infrequent except in patients with
systemic autoimmune disorders. Twenty-three of 33 (70%)
of patients treated with corticosteroids improved
clinically, often short-term. Sixteen patients received
treatment with other immunosuppressive drugs including
methotrexate, cyclophosphamide, azathioprine,
mycophenolic mofetil, and intravenous immunoglobulin
(IVIg) generally with a limited modest response. Using
clinical trial criteria for response, only 5/35 (14%)
demonstrated improvement over a mean 34.4 months
follow-up.
CONCLUSIONS:
Immune-mediated inner ear disease is not a uniform
disease with simple diagnosis or treatment. The course
of the disease often results in significant long-term
disability due to hearing loss and response to
aggressive immunosuppression including corticosteroids
is poor.
If the autoimmune disorder affects the blood, the person may need blood transfusions.
Measures to help with movement or other functions may be needed for autoimmune disorders that affect the bones, joints, or muscles.
Medicines are often prescribed to control or reduce the immune system's response. Such medicines may include corticosteroids and immunosuppressant drugs such as cyclophosphamide or azathioprine.
Before one starts on medication one should find the offending organism or allergy. The most common are food allergies and in particular celicac disease.