How Common Are Auditory Manifestations in Vestibular Migraine? A Systematic Review and Meta-Analysis
This systematic review and meta-analysis of 15 studies reveals that aural fullness and tinnitus are common auditory manifestations in adults with vestibular migraine, with pooled prevalences of 28.8% and 40.7% respectively, though high heterogeneity among studies limits precise prevalence estimation and underscores the need for standardized auditory assessments.
Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer
Imagine a person who feels a sudden, spinning sensation, as if the room is tilting, accompanied by a throbbing headache. This is the experience of vestibular migraine, a condition where the brain's balance system and the headache disorder known as migraine collide. While doctors have long recognized the dizzy spells and the pain, a quieter, often confusing part of the puzzle has remained less clear: the strange sounds and sensations in the ears. Patients frequently report a feeling of fullness, as if their ear is plugged, or a ringing noise that won't go away. These symptoms overlap with other ear disorders, making it difficult to tell if the problem is a migraine affecting the inner ear or a different condition entirely. Understanding how often these ear symptoms appear in migraine patients is crucial, not just for comfort, but for getting the right diagnosis and treatment.
A team of researchers set out to untangle this confusion by gathering and analyzing data from fifteen different studies involving nearly two thousand adults who had been diagnosed with definite or probable vestibular migraine. Their goal was to count how many of these patients experienced specific ear symptoms, particularly a sensation of fullness in the ear and the ringing known as tinnitus. They looked for patterns across different countries and medical centers, combining the numbers to get a clearer picture of the whole group rather than relying on a single hospital's experience.
The researchers found that these ear symptoms are indeed common companions to the dizzy spells. When they looked at the feeling of fullness, they discovered that roughly three out of every ten patients reported it. This sensation, often described as pressure or a blockage, appeared in nearly thirty percent of the people studied. The ringing in the ears, or tinnitus, was even more frequent, affecting about four out of every ten patients. These numbers suggest that if a patient comes in with dizziness and a headache, there is a significant chance they will also be dealing with these auditory disturbances.
However, the story is not as simple as a single, fixed number that applies to everyone. The researchers noticed that the frequency of these symptoms varied wildly from one study to another. In some groups, very few people reported these issues, while in others, the majority did. This wide variation happened because the studies were conducted in different settings, such as headache clinics versus ear and balance clinics, and because doctors asked questions in different ways. Some studies only counted symptoms that happened during the dizzy attack, while others included symptoms that lingered between attacks. Because of these differences, the researchers could not pin down a single, precise percentage that would be true for every person with this condition. Instead, the numbers serve as a broad estimate, showing that while these symptoms are frequent, their presence depends heavily on how and where the patient is being examined.
The team also looked at hearing loss, but they found that the data was too messy to combine into a single number. Some studies counted people who felt their hearing was worse during an attack, while others only counted people who had measurable hearing loss on a standard test. Since these are different things, the researchers decided not to mix them together. They did, however, note that subjective feelings of hearing difficulty are common, even when standard hearing tests come back normal. This distinction is vital because it helps separate vestibular migraine from a condition called Ménière's disease, where permanent hearing loss is a defining feature. In vestibular migraine, the hearing trouble often feels real to the patient but may not show up as a permanent defect on a chart.
Finally, the researchers examined sensitivity to loud sounds, known as hyperacusis. Only a few studies had looked at this specific issue, and they used different methods to measure it, so the team could not calculate a reliable average. The available evidence suggests that some patients do have trouble tolerating ordinary sounds, but more research is needed to know exactly how common this is.
The overall picture that emerges is one of a complex condition where the ears and the brain are deeply connected. The study confirms that ear fullness and ringing are standard parts of the experience for many people with vestibular migraine, appearing in a large portion of patients. Yet, because these symptoms can look like other ear diseases, doctors must be careful. They need to listen to the patient's full story, including the history of headaches and the timing of the symptoms, rather than relying on the ear complaints alone. The findings highlight a need for better, more consistent ways to ask patients about their hearing and ear sensations, which would help doctors distinguish between different causes of dizziness and provide better care.
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