An Introduction to Two Types of Dizziness

by admin on August 29, 2017

The director of pediatric otolaryngology fellowship training at LeBonheur Children’s Medical Center in Memphis, Tennessee, Rande Lazar, MD, specializes in treating disorders of the ear, nose, and throat. Through his work in Memphis, Rande Lazar, MD, maintains an interest in areas such as dizziness. The feeling of dizziness can refer to two distinct experiences: lightheadedness and vertigo. Understanding which of these affects a patient can help him or her and a doctor to determine the underlying cause of the dizziness. Lightheadedness involves feeling as if one might faint or pass out. It may include feeling nauseous or as if one might vomit. Lightheadedness improves or entirely disappears if one lies down and it never includes a sensation that one’s surroundings move. Vertigo, on the other hand, does include a moving sensation. A person with vertigo may also feel nauseous and even vomit, but will have difficulty keeping balanced. The sensation of one’s surroundings moving may mean they seem to spin, whirl, or tilt. If severe enough, the person may have difficulty standing and may fall. Causes of either type of dizziness vary. Often, lightheadedness results from a decrease in blood pressure to one’s head, such as when one rises quickly from a lower position, resulting in a feeling known colloquially as a “head rush.” Vertigo generally arises from an abrupt change in the inner ear’s s balance structure known as the vestibular system.

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