Dizziness: a diagnostic approach.

Area of Science:

• Neurology
• Otolaryngology
• Internal Medicine

Background:

• Dizziness is a frequent complaint in primary care, affecting approximately 5% of visits.
• Patient history is crucial for categorizing dizziness into vertigo, disequilibrium, presyncope, or lightheadedness.

Purpose of the Study:

• To outline the differential diagnosis and management of dizziness in primary care settings.
• To emphasize the role of patient history and physical examination in diagnosing dizziness.

Main Methods:

• Classification of dizziness into four main categories based on patient history.
• Physical examination tests including nystagmus evaluation, Dix-Hallpike maneuver, and orthostatic blood pressure testing.
• Review of common causes and treatments for each dizziness category.

Main Results:

• Common causes of vertigo include benign paroxysmal positional vertigo, Meniere disease, vestibular neuritis, and labyrinthitis.
• Presyncope can be medication-induced, disequilibrium linked to Parkinson disease or diabetic neuropathy, and lightheadedness to psychiatric disorders.
• Physical exams are key; laboratory testing and radiography have limited diagnostic roles.

Conclusions:

• Effective management of dizziness involves accurate categorization and targeted treatment of underlying conditions.
• Specific maneuvers and treatments exist for vertigo (e.g., Epley maneuver, vestibular rehabilitation, steroids).
• Addressing orthostatic hypotension, underlying systemic diseases, and psychiatric conditions is vital for managing presyncope, disequilibrium, and lightheadedness.