Approach to Dizziness in Young Adults

Initial Evaluation

The American Academy of Otolaryngology-Head and Neck Surgery suggests that a 22-year-old with dizziness should be immediately categorized by timing and triggers to determine the underlying cause, such as brief episodic vertigo, acute persistent vertigo, spontaneous episodic vertigo, or chronic dizziness 1, 2
Focusing on precise timing and specific triggers is more diagnostically valuable than the patient's subjective description of symptoms, according to the American Academy of Otolaryngology-Head and Neck Surgery 1, 2
Brief episodic vertigo triggered by head position changes suggests Benign Paroxysmal Positional Vertigo (BPPV), as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 1, 2
Acute persistent vertigo with constant symptoms and nausea/vomiting may indicate vestibular neuritis, labyrinthitis, or posterior circulation stroke, as suggested by the American Academy of Otolaryngology-Head and Neck Surgery 1, 2
Spontaneous episodic vertigo without positional trigger may suggest vestibular migraine or Ménière's disease, according to the American Academy of Otolaryngology-Head and Neck Surgery 1, 2
Chronic dizziness with persistent symptoms may indicate medication side effects, anxiety/panic disorder, or posttraumatic vertigo, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 1, 2

Headache, photophobia, and phonophobia strongly suggest vestibular migraine, as suggested by the American Academy of Otolaryngology-Head and Neck Surgery 1, 2
Hearing loss, tinnitus, and aural fullness suggest Ménière's disease, according to the American Academy of Otolaryngology-Head and Neck Surgery 3, 4, 2
Focal neurological symptoms, such as dysarthria, diplopia, numbness, and weakness, are red flags for central pathology requiring urgent imaging, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 1, 2

Vestibular migraine is extremely common and often under-recognized in young patients, according to the American Academy of Otolaryngology-Head and Neck Surgery 4, 5
Asking about current or past migraine history, family history of migraine, motion intolerance as a trigger, and photophobia, phonophobia, or visual aura during vertigo episodes is essential, as suggested by the American Academy of Otolaryngology-Head and Neck Surgery 5, 2

The Dix-Hallpike maneuver is the gold standard for diagnosing BPPV and should be performed in every patient with brief episodic dizziness triggered by position changes, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 1, 2
A thorough neurologic exam, including cranial nerve testing, cerebellar testing, gait assessment, and observation for spontaneous nystagmus, is crucial, according to the American Academy of Otolaryngology-Head and Neck Surgery 1, 2
The HINTS examination (Head-Impulse, Nystagmus, Test of Skew) has 100% sensitivity for detecting stroke when performed by trained practitioners, as suggested by the American Academy of Otolaryngology-Head and Neck Surgery 1, 2

Focal neurological deficits, sudden unilateral hearing loss, inability to stand or walk, downbeating or other central nystagmus patterns, new severe headache accompanying dizziness, and progressive neurologic symptoms require urgent MRI brain without contrast, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 1, 2
CT head should not be used instead of MRI when stroke is suspected, as it has only 20-40% sensitivity for posterior circulation infarcts, according to the American Academy of Otolaryngology-Head and Neck Surgery 1, 2

Canalith repositioning procedure (Epley maneuver) is the treatment of choice for BPPV, with 80% success after 1-3 treatments and 90-98% after repeat maneuvers, as suggested by the American Academy of Otolaryngology-Head and Neck Surgery 1, 2
Migraine prophylaxis and lifestyle modifications are essential for vestibular migraine, according to the American Academy of Otolaryngology-Head and Neck Surgery 1, 2
Vestibular rehabilitation therapy should be initiated as soon as possible for vestibular neuritis, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 1, 2

Relying on patient's description of "spinning" versus "lightheadedness" instead of focusing on timing and triggers, as suggested by the American Academy of Otolaryngology-Head and Neck Surgery 1, 2
Assuming normal neurologic exam excludes stroke, as 75-80% of posterior circulation strokes have no focal deficits, according to the American Academy of Otolaryngology-Head and Neck Surgery 1, 2
Ordering imaging for straightforward BPPV, which delays treatment unnecessarily, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 2
Skipping the Dix-Hallpike maneuver, the gold standard diagnostic test, as suggested by the American Academy of Otolaryngology-Head and Neck Surgery 2
Overlooking vestibular migraine, which is extremely common but under-recognized in young patients, according to the American Academy of Otolaryngology-Head and Neck Surgery 4, 5
Failing to distinguish fluctuating hearing loss (Ménière's) from stable/absent hearing loss (vestibular migraine), as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 5