As you know, the incidence of vertigo is very high, and statistics show that most vertigo is caused by vestibular systemic, or inner ear, pathologies, and we all know that the ear is for hearing sounds. The anatomical structures responsible for balance: the semicircular canal has three semicircular canals that are perpendicular to each other (anterior (vertical) semicircular canal, posterior (vertical) semicircular canal, and external (horizontal) semicircular canal).
The three semicircular canals are each responsible for their own, but also cooperate with each other to accomplish complex, delicate balancing functions. The semicircular canals and the vestibule are filled with lymph, similar to intracellular fluid, and the cilia of the hair cells of sensory balance float in the endolymph, and the hair cells are covered with the otolithic membrane, in which there are multiple layers of calcium carbonate crystal-based particles, i.e. otoliths. The pathology of vertigo: When the otolith is not in a fixed position, i.e. when the otolith is dislodged, it stimulates the hair cells, which leads to vertigo (vestibular vertigo). This kind of vertigo is characterized by dizziness when moving, but not when not moving, and is not accompanied by impaired movement of the limbs or loss of consciousness. If a cranial CT or MRI is performed, there is often no significant abnormality. At the same time, vertigo is often accompanied by nausea, vomiting, panic, sweating, waxing, and in severe cases, diarrhea, which are all secondary symptoms of vegetative firing. The vertigo of otoliths is closely related to the change of position, such as vertigo when getting up or lying down, vertigo when turning to the left or to the right, or sudden attack when turning to the right or to the left, the duration is often a few seconds, usually not more than a minute, no matter how serious the vertigo is, the consciousness is always clear. Resetting principle: the semicircular canal is like a hula hoop with only a small opening filled with fluid. When there is a stone (otolith or other particles) inside the fluid, the vertigo disappears immediately when the otolith is discharged from the semicircular canal by turning in the head position with the help of gravity. The mechanism of self-limiting vertigo: it is like a balloon floating in a room with a window, when the balloon happens to float out, the person’s vertigo gets better, but it takes a long time, even more than three months for the stubborn ones, and the manual reset is like we grabbed the balloon with our hands and threw it out of the window, which can effectively shorten the course of the disease.