Peripheral Vertigo

Peripheral vertigo is a condition that affects the inner ear or the vestibular nerve, which are parts of the body responsible for maintaining balance and spatial orientation. It causes a sensation of spinning or dizziness, often accompanied by nausea, vomiting, and difficulty walking. This condition can result from infections, inflammation, or injury to the inner ear structures. The main impact on health is the disruption of normal balance, which can lead to falls and difficulty performing daily activities. Symptoms usually come on suddenly and may last from minutes to days. Understanding the cause of peripheral vertigo is important for proper management and recovery.

Peripheral vertigo is defined as vertigo arising from dysfunction of the vestibular apparatus in the inner ear or the vestibular portion of the eighth cranial nerve. It is most commonly caused by conditions such as benign paroxysmal positional vertigo (BPPV), vestibular neuritis, labyrinthitis, and Meniere disease. The pathophysiology involves abnormal stimulation or damage to the semicircular canals, otolith organs, or vestibular nerve, leading to a mismatch of sensory input about head position and movement. Clinically, it presents with sudden onset of spinning vertigo, horizontal-torsional nystagmus, nausea, and imbalance. Unlike central vertigo, peripheral vertigo typically spares other neurological deficits. The condition is significant because it can severely impair balance and increase the risk of injury.