What is “cervical vertigo” that is getting younger?

  Cervical vertigo, as the name implies, is the production of vertigo related to the neck. It often occurs during neck activity, especially when the head is turned violently or tilted backwards excessively.  In some patients, vertigo is accompanied by nausea, vomiting, and general sweating. In mild cases, it can get better in a few seconds, while in severe cases, it can last intermittently for several days or longer before the symptoms gradually ease.  The pathogenesis and pathophysiological process of cervical vertigo are complicated, but the most understood and well-researched vertigo is caused by vertebral artery type cervical spondylosis, which is commonly known as the growth of bone spurs (osteophytes) in a part of the cervical spine, and the bone spurs compress or stimulate the vertebral artery passing through the cervical spine, affecting the blood supply of the vertebral artery and leading to a temporary lack of blood supply to the brain.  The most distinctive feature of cervical vertigo is that the vertigo attack is clearly related to the position of the head, called positional vertigo. Cervical vertigo arises in two ways: either the vertebral artery is mechanically compressed by a bone spur and becomes narrowed or occluded, or the cervical sympathetic nerve is stimulated, causing spasm of the vertebral artery. In both cases, there is a prerequisite that the head and neck must be turned to a certain position so that the vertebral artery is compressed or the sympathetic nerve is stimulated, that is, the onset of vertigo symptoms is obviously related to the position of the head.  Some patients suddenly hear someone shouting behind them while walking and suddenly fall down the moment they turn around to look. After falling to the ground, the position of the head returns and the symptoms disappear, and they can get up immediately. It can be seen that cervical vertigo is characterized by positional vertigo of the head and neck, which comes on when the head and neck are turned or bent sideways to a specific position, and the symptoms disappear after the position is returned.  In addition to vertigo, other symptoms associated with vertigo due to inadequate blood supply to the vertebrobasilar artery are often seen in clinical practice, such as blurred vision, double vision, nausea, sudden falls, impaired trigeminal sensation, sympathetic nerve palsy, dysphonia, hemiplegia, and so on. These conditions are mostly seen in middle-aged and elderly patients whose degenerative cervical spine pathology mainly affects the blood supply of the vertebral artery.  With age, the water in the nucleus pulposus of the cervical intervertebral disc gradually decreases, the elasticity and tension decreases, the vertebral space becomes narrower and looser, the stability of the intervertebral joints is weakened, coupled with long-term chronic strain, various acute and chronic injuries, etc., cervical spine hyperplasia occurs, which is medically known as cervical degenerative lesions. Generally speaking, cervical vertigo caused by degenerative lesions of the cervical spine is more common in middle-aged and elderly people.  However, in recent years, there is a trend of younger patients with “cervical vertigo” in our pain clinic. There are mainly two groups of people: those who are engaged in long-term occupations where the neck is often fixed in one position, such as accountants, car drivers, copywriters and computer workers.  These people are more static and less active, and the cervical spine is relatively fixed in one position for a long time, with little activity time, which is very likely to cause cervical degenerative lesions, i.e., osteophytes in one part of the cervical spine, compressing or stimulating the vertebral artery through the cervical spine, resulting in a temporary lack of cerebral blood supply. Another group is people with a history of trauma to the head and neck, sometimes dating back decades to a history of instantaneous violent injury.  There are many ways to treat cervical vertigo, and treatment should be decided on a case-by-case basis. For patients who do have significant indications for surgery, surgical treatment is available. For patients with cervical vertigo without organic lesions in the cervical spine and only with structural disorders, surgery is not appropriate and comprehensive conservative treatment should be the main treatment.