Friday April 26, 2019

Is Migraine Linked to Ear Disorders?

The researchers hypothesized that these abnormalities could be a result of compromised blood supply to the auditory system due to the migraine attacks

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Migraine
Migraine is a risk factor for sudden sensorineural hearing loss -- characterized by rapid loss of hearing in one or both ears, which may occur immediately or over the course of several days. Pixabay

People with chronic migraines may be at an increased risk of developing tinnitus — feeling of ringing in the ears — and other inner ear disorders, than those without the severe headache condition, says a study.

The researchers found that the risk of cochlear disorders, especially for tinnitus, was found to be significantly higher among patients with a history of migraines.

The study may support the presence and/or concept of “cochlear migraine”, said researchers including Juen-Haur Hwang from Dalin Tzu Chi Hospital, Taiwan.

Cochlear disorders are a condition that affect “snail shell shaped” part of the inner ear which receives sound in the form of vibrations and includes tinnitus, sensorineural hearing impairment, and/or sudden deafness.

The researchers found that the risk of cochlear disorders, especially for tinnitus, was found to be significantly higher among patients with a history of migraines.
The researchers found that the risk of cochlear disorders, especially for tinnitus, was found to be significantly higher among patients with a history of migraines. Pixabay

For the study, published in the journal JAMA Otolaryngology – Head and Neck Surgery, the team included data from 1,056 patients with a history of migraines and 4,224 controls.

The cumulative incidence of cochlear disorders in the migraine cohort was significantly higher by 12.2 per cent than that in the matched non-migraine cohort of nearly six per cent.

Subgroup analysis showed that compared with the non-migraine cohort, the adjusted hazard ratios in the migraine cohort were 3.30 for tinnitus, 1.03 for sensorineural hearing impairment, and 1.22 for sudden deafness, suggesting that people with migraine history are more susceptible to developing tinnitus than any other form of cochlear disorders.

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Another study, published in the journal Cephalalgia, showed that migraine is a risk factor for sudden sensorineural hearing loss — characterized by rapid loss of hearing in one or both ears, which may occur immediately or over the course of several days.

The researchers hypothesized that these abnormalities could be a result of compromised blood supply to the auditory system due to the migraine attacks. (IANS)

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According to New Study, Migraine Raises Risk of Chronic Dry Eye Disease

For men, aged 65 or above, having migraine nearly doubled the odds of dry eye disease, and risk in women of the same age was almost 2.5 times

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Migraine, dry eyes
"Physicians caring for patients with a history of migraine headaches should be aware that these patients may be at risk for concurrent dry eye disease. Pixabay

Suffering from migraine? You could be at higher odds of having chronic dry eye disease, says a new study.

The chronic dry eye is a common disease in which natural tears fail to adequately lubricate the eyes, thus affecting its functioning and lessening a person’s quality of life.

The study showed that people with migraine had a 20 per cent higher risk of having dry eye disease, the HealthDay reported.

For men, aged 65 or above, having migraine nearly doubled the odds of dry eye disease, and risk in women of the same age was almost 2.5 times.

migraine, dry eyes
The study showed that people with migraine had a 20 per cent higher risk of having dry eye disease, the HealthDay reported. Pixabay

The association between migraine and dry eye was found to be more among the elderly, particularly for women due to hormonal changes caused by pregnancy, the use of oral contraceptives and menopause, the researchers said.

“Physicians caring for patients with a history of migraine headaches should be aware that these patients may be at risk for concurrent dry eye disease,” said Richard Davis, ophthalmologist at the University of North Carolina at Chapel Hill in the US.

For the study, the team examined 73,000 adults.

The findings, published in the journal JAMA Ophthalmology, showed 8-34 per cent of adults may be affected by dry eye disease.

Further, similar underlying inflammatory processes at the cellular level are known to play key roles in both dry eye disease and migraine.

migraine, dry eyes
Excessive dryness of the eye’s surface might work on key nerve pathways to help trigger migraines, they added. Pixabay

“Inflammatory changes in dry eye disease might trigger similar events in neuromuscular tissue, leading to the development and propagation of migraine headaches,” the team noted.

 

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Excessive dryness of the eye’s surface might work on key nerve pathways to help trigger migraines, they added.

In addition, rheumatoid arthritis, diabetes, thyroid problems, exposure to smoke, wind and dry climates, and long-term use of contact lenses can also lead to dry eyes, the study noted. (IANS)