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Prevalence of Pulsatile Tinnitus Among Patients With Migraine

Heather M. Weinreich and John P. Carey

Division of Otology, Neurotology and Skull Base Surgery, Department of Otolaryngology–Head and Neck Surgery, The Johns

Hopkins University School of Medicine, Baltimore, Maryland

Objective:

To examine the prevalence of pulsatile tinnitus

(PT) among patients with a diagnosis of migraine and to

determine if treatment of migraine improves symptoms.

Study Design:

Single-institution retrospective patient review.

Setting:

Academic tertiary referral center.

Patients:

Billing data capturing ICD-9 codes

346.xx

and

388.3x was used to identify patients with history of migraine

and tinnitus. Patients were excluded if the symptom of PT

could be attributed to an alternate diagnosis. Data were

extracted from the patients’ electronic medical records.

Intervention(s):

Therapeutic patients were prescribed a strict

migraine diet with or without migraine medication.

Main Outcome Measure(s):

Subjective improvement in

tinnitus as documented in electronic medical records.

Results:

One thousand two hundred four patients were

identified with an ICD-9 code for migraine and of those

patients, 12% (n

¼

145) had an ICD-9 code for tinnitus. After

ruling out alternative causes, the prevalence of PT among all

patients with migraine was 1.9%. Of migrainers with PT

who underwent migraine treatment, 11 out of 16 reported

resolution or improvement of their PT.

Conclusion:

PT can be observed in the context of migraine.

Migraine treatment with avoidance of dietary triggers with

or without medication can possibly lead to resolution of

PT.

Key Words:

Diet

Headache

Migraine

Pulsatile

tinnitus.

Otol Neurotol

37:

244–247, 2016.

Pulsatile tinnitus (PT) is the perception of a pulsing or

rhythmic sound. The differential is broad and includes

vascular, nonvascular, and serious pathology such as

dural arteriovenous fistulas. An aggressive workup

should be performed given the risk of missing a serious

diagnosis. The dilemma occurs when no middle ear mass

or audible bruit is found. Even after extensive imaging,

no diagnosis is found in one-third of patients (1). We

propose migraine as a possible cause.

Migraine is one of the most common conditions in the

United States (2). Approximately one-fifth of the popu-

lation reports migraine with the highest prevalence

among women (3). Abnormal electrical activity and then

depression in or around the brain leading to vascular

changes is observed during migraine (4). One theory is

central neuronal hyperexcitability involving overactivity

of excitatory neurotransmitters (5). Nitric oxide affects

the trigeminal system leading to increased calcitonin

gene-related peptide release and downstream effects of

vasodilation and nociceptive transmission (6). Is it

possible this vasodilation not only leads to the sensation

of a throbbing headache but also the perception of

throbbing either by a central process or by vasodilation

of vessels around the cochlea leading to PT?

Information regarding migraine and PT is lacking in

the literature. The objective of this study was to examine

the prevalence of PT among patients with a migraine

diagnosis and to determine if migraine treatment

improved PT.

METHODS

The study is a single-institution retrospective medical chart

review. The author’s billing data (May 1, 2004 to December 31,

2014) of patients who received care at the Johns Hopkins Out-

patient Center Otolaryngology clinic were eligible for review.

This study qualified for institutional review board exemption as

approved by The Johns Hopkins Institutional Review Board.

Inclusion criteria included visit diagnoses of ICD-9

346.xx

(migraine) and 388.3x (tinnitus). PT was determined if the chart

described tinnitus as pulsatile, pulse-like, or if the assessment’s

final diagnosis was PT. Tinnitus laterality was determined by

patient report. Patients were excluded if PT was attributed to an

alternate diagnosis noted on imaging or if ocular or cervical

vestibular myogenic potentials (o or cVEMPs) suggesting

superior canal dehiscence (SCD).

All patients were prescribed a strict migraine diet (see supple-

mental digital content,

http://links.lww.com/MAO/A363

) with or

without migraine medication. Addition of antimigraine medi-

cation was at the clinician’s discretion. Treatment adherence and

subjective tinnitus improvement was documented in the chart.

Presence of headache and comorbidities were determined from

patient report and medical record. Presence of sensorineural

hearing loss was noted on audiograms.

Address correspondence and reprint requests to Heather M. Wein-

reich, M.D., M.P.H., Department of Otolaryngology–Head and Neck

Surgery, Johns Hopkins Outpatient Center, 601N. Caroline Street, 6th

Floor, Baltimore, MD 21287, U.S.A.; E-mail:

hweinre1@jhmi.edu

The authors disclose no conflicts of interest.

Supplemental digital content is available in the text.

Otology & Neurotology

37

:244–247 2016, Otology & Neurotology, Inc.

Reprinted by permission of Otol Neurotol. 2016

;

37(3):244-247.

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