H81.12

Clinical Causes: Displacement of tiny calcium carbonate crystals within the inner ear, particularly the semicircular canals. Head injuries or trauma that disturb the inner ear structures. Degeneration of inner ear structures due to aging. Inner ear infections or inflammation. Certain migraine episodes may trigger vertigo symptoms. Prolonged bed rest or sudden movements impacting inner ear balance mechanisms.

Key Symptoms: Brief episodes of vertigo or spinning sensation that last from a few seconds to minutes. Nausea or vomiting during vertigo episodes. Balance disturbances, leading to unsteady gait. Nystagmus, which is involuntary eye movement often seen during episodes. Sensitivity to head position changes, especially when turning or tilting the head. Feelings of dizziness without an obvious trigger.

Diagnosis Path: Diagnosis of benign paroxysmal vertigo of the left ear involves a detailed medical history and physical examination. Specific tests include the Dix-Hallpike maneuver, which is used to provoke vertigo and observe eye movements indicative of inner ear disturbances. Audiometric testing and balance assessments might also be performed to exclude other causes of vertigo. Imaging studies, such as MRI, are generally reserved for cases where alternative diagnoses are suspected. The primary goal is to identify the characteristic positional vertigo associated with BPPV and confirm the side affected — in this case, the left ear.

Treatment Protocols: Treatment typically involves maneuvers designed to reposition the displaced calcium crystals within the inner ear. The most common is the Epley maneuver, a series of head movements performed by a healthcare provider to channel the crystals back to their proper location. Other options include vestibular rehabilitation therapy to improve balance and reduce dizziness, medication such as antihistamines or anticholinergics to lessen symptoms, and patient education about managing attacks. In some cases, symptoms resolve on their own over time, but treatment can significantly reduce the frequency and intensity of vertigo episodes.