Baptist Health Neurosurgeon’s Key Role in Study Linking Meningiomas to Inner-Ear Disorder With Range of Symptoms

 Baptist Health Neurosurgeon’s Key Role in Study Linking Meningiomas to Inner-Ear Disorder With Range of Symptoms

Meniere’s disease is a disease of the inner ear clinically diagnosed by symptoms of fluctuating hearing loss, tinnitus, aural fullness (sensation caused by muffled hearing), and vertigo. Meniere’s disease is often difficult to diagnose because of the variety of symptoms that are often associated.

A new study, published in the Journal of Neurosurgery, makes a critical connection between this disease and some cases of meningiomas, the most commonly diagnosed primary brain tumors in adults. , most of them are not cancerous, or bad.

Michael McDermott, MD., Is a neurosurgeon and the chief medical executive at the Miami Neuroscience Institute.

Michael McDermott, MD., A neurosurgeon and the chief medical executive at the Miami Neuroscience Institute, part of Baptist Health, co -author of the study, Posterior Petrous Face Meningiomas Presenting Ménière’s-like Syndrome: A Case Series and Literature Review. Dr. McDermott is a world renowned leader in neurosciences, with clinical expertise in the field of meningioma surgery.

Considered the world’s foremost expert in the surgical management of meningiomas, Dr. McDermott conceptualized and designed the study, which linked the symptoms of Meniere’s disease to meningiomas located inside the skull.

For their review, the researchers examined a database of 2,882 patients with intracranial meningioma that underwent resection, or surgical removal of the tumor as well as structures that had infiltrated the tumor. Of the patients, 144 had petrous facial tumors, challenging tumor treatment because of their proximity to the cranial nerves, brainstem and critical vasculature. There were seven cases in which patients reported Meniere-like symptoms and had posterior petrous facial meningiomas covering the endolymphatic sac, the non-sensory organ in the inner ear.

In each of the seven cases, symptoms improved after the meningiomas were removed.

“Right now, most doctors don’t think these symptoms are related to a small tumor, but we’ve shown that there is a relationship,” Drs. McDermott. “This is an important article for neurosurgeons and neurotologists who have patients with these unexplained, untreated audio vestibular symptoms. Surgical resection works. If you remove the tumor, the tumors disappear. symptoms. ”

Dr. McDermott pioneered the best surgical approach to safely and successfully remove meningiomas. His research has influenced the classification, diagnosis and grading of meningiomas. Prior to joining Baptist Health South Florida, where he served as chief medical executive at the Miami Neuroscience Institute, he held the Wolfe Family Endowed Professor of Meningioma Research at UCSF Medical Center in San Francisco.

While meningiomas are the most common benign brain tumor, Drs. McDermott said it rarely happens on the posterior petrous surface. He warned that not all patients with tumors in this location will experience these symptoms.

Dr. pointed out. McDermott noted that vestibulocochlear dysfunction – such as dizziness, vertigo and balance issues – usually does not occur in posterior petrous meningiomas, unless they involve the vestibular aperture or endolymphatic sac — components of the inner ear system that control balance. The tumor may interfere with endolymphatic fluid reabsorption, causing changes in equilibrium.

“Tumors are placed in the position that they block the absorption of the endolymph back into the circulation. When we remove the tumor, we open the endolymphatic sac and it is important to make a shunt. So the patient’s symptoms disappear,” said Dr. McDermott.

Vestibular dysfunction usually develops, regardless of the specific surgical approach to removing meningiomas.

“Removal of meningiomas in this specific part of the skeletal base has the potential to improve quality of life for patients struggling with these idiopathic symptoms,” Drs. McDermott.

Tags: meningioma, Miami Neuroscience Institute, Michael McDermott MD

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