Eduovisual
Nervous System & Special Senses
Benign paroxysmal positional vertigo: Epley maneuver
— Canalithiasis (free-floating debris) is far more common than cupulolithiasis (debris adherent to cupula).
— Movement of debris with head position changes creates abnormal endolymph flow → brief, intense vertigo.
— Brief (<1 minute) episodes of rotational vertigo triggered by positional change: rolling in bed, looking up ("top-shelf vertigo"), bending over, lying flat at the dentist or salon.
— No persistent vertigo between episodes, no hearing loss, no tinnitus, no neurologic deficits.
— Often clusters over days–weeks, may remit spontaneously, frequently recurs (~50% within 5 years).
Board pearl: If vertigo lasts hours (Ménière), days (vestibular neuritis), is constant (central cause), or is associated with hearing loss, focal neuro signs, or vertical/direction-changing nystagmus → it is not BPPV. BPPV episodes are seconds to <1 minute and always positionally triggered, never spontaneous at rest.
Step 3 management: Diagnosis is bedside and clinical; no imaging or labs are needed in the typical case.
— "Spinning sensation when I roll over in bed at night."
— "Dizziness when I tilt my head back to wash my hair / hang curtains / look at the top shelf."
— "Brief episodes lasting less than a minute, then completely back to normal."
— Patient may report nausea with episodes but rarely vomiting; no hearing change, no tinnitus, no aural fullness.
— Latency: symptoms begin a few seconds after the provoking movement, not instantaneously.
— Duration: <60 seconds per episode, typically 10–30 seconds.
— Fatigability: repeated provocation produces progressively less intense vertigo.
— Positional reproducibility: the same head position consistently triggers symptoms.
— Hearing loss, tinnitus, aural fullness → think Ménière or labyrinthitis.
— Continuous vertigo over days with nausea/imbalance → vestibular neuritis.
— Diplopia, dysarthria, dysphagia, dysmetria, focal weakness, severe headache, gait ataxia out of proportion → central cause (posterior circulation stroke, cerebellar lesion, MS).
— Recent URI, ototoxic drug exposure (aminoglycosides, cisplatin), barotrauma, head injury.
Key distinction: Vertigo (illusion of motion) vs presyncope (about to faint, orthostatic) vs disequilibrium (unsteady on feet, no spinning) vs lightheadedness (vague). Only true vertigo with positional trigger fits BPPV — clarifying "what do you mean by dizzy?" is the first and highest-yield history question.
Board pearl: A patient who reports vertigo at rest, without any movement, does not have BPPV — look for central or vestibular causes instead. Conversely, vertigo only with head movement and a normal interictal exam is BPPV until proven otherwise.
— Cranial nerves intact, no spontaneous nystagmus, normal gait, normal finger-to-nose, normal Romberg.
— Orthostatic vitals to rule out presyncope masquerading as "dizziness."
— Otoscopy normal; Weber/Rinne normal (no conductive or sensorineural loss).
— Patient seated on exam table, legs extended.
— Turn head 45° toward the side being tested.
— Rapidly lay patient supine with head extended ~20° below horizontal (off the end of the table).
— Hold position and observe eyes for 30 seconds.
— Sit patient back up and observe again.
— Latency of 2–20 seconds before nystagmus onset.
— Upbeat–torsional nystagmus with top poles of eyes beating toward the dependent (downward) ear.
— Duration <60 seconds, fatigues with repetition.
— Patient experiences reproduction of vertigo.
Step 3 management: If the Dix-Hallpike is positive, proceed immediately to the Epley maneuver in the same visit — diagnosis and treatment occur back-to-back. Do not order MRI or vestibular testing first.
Board pearl: Vertical or purely torsional down-beating nystagmus, direction-changing spontaneous nystagmus, or nystagmus that does not fatigue suggests a central lesion (cerebellar/brainstem) — image with MRI, not Epley.
— Orthostatic vitals + ECG if any presyncopal features, palpitations, or syncope reported — to rule out arrhythmia or orthostatic hypotension as the true cause of "dizziness."
— CBC, BMP, glucose if dehydration, anemia, or hypoglycemia suspected from history.
— TSH in elderly with chronic dizziness and fatigue.
— Vitamin D level — low 25-OH vitamin D is associated with recurrent BPPV; repletion reduces recurrence (reasonable in patients with frequent episodes).
— Medication review: antihypertensives, benzodiazepines, anticholinergics, alcohol — all can mimic or worsen dizziness in elderly.
— Focal neurologic findings or abnormal cerebellar exam.
— Atypical nystagmus (vertical, pure torsional, direction-changing, non-fatiguing, no latency).
— Vertigo unresponsive to two properly performed Epley maneuvers.
— New headache, neck pain, or vascular risk factors raising concern for vertebrobasilar stroke or cerebellar hemorrhage.
— Progressive unilateral hearing loss → MRI internal auditory canal for vestibular schwannoma.
Key distinction: CT is useful only for acute hemorrhage or trauma; MRI is the imaging modality for suspected posterior fossa/central vertigo. Carotid ultrasound has no role in vertigo workup.
Board pearl: Ordering an MRI for textbook positional vertigo with a positive Dix-Hallpike is the wrong answer — it delays definitive treatment (Epley) and adds cost without diagnostic yield.
— Quantifies nystagmus during positional testing and caloric stimulation.
— Useful when bedside exam is equivocal or when vertigo recurs frequently despite repositioning.
— Caloric testing identifies unilateral vestibular hypofunction (vestibular neuritis, neuritis sequelae).
— Cervical VEMP assesses saccule/inferior vestibular nerve.
— Ocular VEMP assesses utricle/superior vestibular nerve.
— Helpful in superior canal dehiscence syndrome (sound/pressure-induced vertigo with Tullio phenomenon).
— Diagnosis remains uncertain after two clinic visits.
— Failed response to 2–3 properly performed canalith repositioning maneuvers.
— Recurrent BPPV (≥3 episodes/year).
— Bilateral or multi-canal involvement.
— Suspected central pathology or coexisting Ménière disease.
Step 3 management: In the ambulatory setting, advanced vestibular testing is rarely a first-line answer. The progression is typically: history → Dix-Hallpike → Epley → repeat Epley if needed → ENT/neuro-otology referral → VNG/MRI only then.
Board pearl: Asymmetric sensorineural hearing loss with vertigo = MRI IAC to rule out vestibular schwannoma (acoustic neuroma) — most commonly arises from the superior vestibular nerve and presents in CN VIII territory before facial nerve involvement.
— Confirm positional vertigo on history.
— Perform Dix-Hallpike; identify affected side (side that triggers nystagmus when ear is down).
— Same-visit Epley maneuver on the affected side.
— Counsel on possible recurrence and what to do at home.
— Schedule 1-week follow-up to reassess; repeat Epley if symptoms persist.
— Semont (liberatory) maneuver — equally effective for posterior canal BPPV; useful when patients cannot tolerate Dix-Hallpike positioning (e.g., cervical spine disease).
— Brandt-Daroff exercises — home-based, lower efficacy; used as adjunct or when in-office maneuvers are not feasible.
— Lempert (BBQ) roll or Gufoni maneuver — for horizontal canal BPPV.
— Do not start chronic meclizine or benzodiazepines — they suppress central compensation and delay recovery.
— Do not order MRI in classic cases.
— Do not restrict the patient indefinitely from movement; gradual return to normal head positioning aids compensation.
— Severe cervical spine disease, recent neck surgery, unstable cervical fracture.
— High-grade carotid stenosis, vertebrobasilar insufficiency.
— Retinal detachment (avoid rapid head extension).
— Recent neck or back surgery — modify with reclining chair or use Semont.
Step 3 management: The single highest-yield correct answer for a typical BPPV vignette is "perform the Epley (canalith repositioning) maneuver." Memorize this as a reflex.
Board pearl: Watchful waiting alone resolves BPPV in many patients within weeks, but Epley shortens time to resolution dramatically and is the standard of care — choose intervention over observation on the exam.
— Meclizine (Antivert) 12.5–25 mg PO q6–8h PRN — first-generation H1 antihistamine with anticholinergic effects.
— Dimenhydrinate 50 mg PO q4–6h PRN.
— Diazepam or lorazepam — reserved for severe acute vertigo with intractable nausea; benzodiazepines carry fall and dependence risk and are inappropriate in elderly (Beers criteria).
— Ondansetron 4–8 mg PO/ODT/IV — preferred in elderly (less sedation, no anticholinergic burden); caution with QT prolongation.
— Prochlorperazine or promethazine — effective but sedating, anticholinergic, and risk extrapyramidal symptoms.
— Metoclopramide — risk of tardive dyskinesia with prolonged use; not preferred.
— Delay central compensation → prolong dizziness.
— Increase fall risk, especially in elderly (anticholinergic burden, sedation).
— Mask diagnostic re-examination.
— Beers criteria flag meclizine, diphenhydramine, benzodiazepines as potentially inappropriate in adults ≥65.
— In patients with recurrent BPPV and serum 25-OH vitamin D <20 ng/mL, supplementation (vitamin D 800–1000 IU/day + calcium) reduces recurrence rates per randomized trial data.
Step 3 management: A 1–2 day course of meclizine PRN is acceptable bridge therapy during acute symptoms, but the definitive answer is Epley. Avoid prescribing meclizine as a maintenance medication.
Board pearl: In an elderly patient on chronic meclizine "for dizziness" with falls, the correct intervention is to stop the meclizine, perform Dix-Hallpike, and treat with Epley — not increase the dose.
— Position 1: Seated on table, head turned 45° to the right (affected side). Hold 30 seconds.
— Position 2: Rapidly lay supine with head still turned 45° right and extended 20° below horizontal (hanging off table). Hold 30–60 seconds or until nystagmus/vertigo subsides.
— Position 3: Without raising head, turn head 90° to the left (so now 45° left). Hold 30–60 seconds.
— Position 4: Roll body onto left side; head turns another 90° so nose points to floor (face down 45°). Hold 30–60 seconds.
— Position 5: Slowly sit up with head tilted slightly down and forward (chin to chest). Hold 30 seconds.
— Vertigo or unsteadiness may persist for 24–48 hours.
— Older "post-Epley restrictions" (upright sleeping, soft collar) have been shown not to improve outcomes — no longer routinely recommended (AAO-HNS guideline).
— Avoid activities requiring rapid head movement, driving, or working at heights for the rest of the day.
CCS pearl: If you encounter BPPV on a CCS case, "perform Epley maneuver" or "canalith repositioning procedure" is the correct order; pair with "patient education re: positional precautions" and a 1–2 week follow-up.
Board pearl: Successful Epley converts a positive Dix-Hallpike to negative on repeat testing — this is the bedside marker of cure.
— BPPV prevalence rises sharply with age; >9% of community-dwelling elderly have unrecognized BPPV when screened.
— Often misattributed to "polypharmacy dizziness," cerebrovascular disease, or generalized deconditioning.
— Untreated BPPV is an independent risk factor for falls, hip fracture, depression, and functional decline.
— Always screen for BPPV in an elderly patient presenting with falls or near-falls, especially if falls occur on rising, rolling, or bending.
— Integrate into the annual Medicare wellness visit fall-risk assessment alongside orthostatic vitals, gait assessment (Timed Up and Go), medication review, and vision check.
— Treating BPPV reduces fall risk and improves Activities of Daily Living scores.
— Use exam table with head support; brace neck and trunk.
— Consider Semont maneuver or modified Epley with reclining chair if cervical osteoarthritis, rheumatoid atlantoaxial instability, or severe kyphosis precludes head extension.
— Avoid in patients with unstable cervical spine, recent carotid endarterectomy, or severe vertebrobasilar disease.
— Epley itself is a mechanical procedure — no dose adjustment needed.
— If meclizine used short-term, no specific renal/hepatic dose change, but caution given anticholinergic side effects and confusion risk.
— Avoid benzodiazepines in CKD/cirrhosis (accumulation, encephalopathy).
— Ondansetron preferred antiemetic; reduce dose in severe hepatic impairment (max 8 mg/day in Child-Pugh C).
Step 3 management: In an elderly faller, the correct sequence is: orthostatic vitals → medication reconciliation → Dix-Hallpike → Epley if positive → home safety evaluation and physical therapy referral.
Board pearl: Vitamin D deficiency correlates with recurrent BPPV in elderly; check 25-OH vitamin D in repeat offenders and supplement to >20 ng/mL.
— BPPV can occur or worsen during pregnancy, often in the second–third trimester (hormonal effects on calcium metabolism and otoconia turnover are hypothesized).
— Epley is safe in all trimesters — mechanical, non-pharmacologic, no fetal risk. Position the patient in left lateral decubitus tilt during supine phases in late pregnancy to avoid IVC compression.
— Avoid pharmacologic vestibular suppressants when possible. Meclizine is Pregnancy Category B (older system) and considered relatively safe but use only if necessary. Avoid benzodiazepines (cleft palate, neonatal withdrawal) and prochlorperazine in first trimester.
— Antiemetic of choice: doxylamine-pyridoxine (Diclegis) for nausea; ondansetron if severe (small studies suggest minor cleft risk in first trimester — counsel and shared decision-making).
— BPPV is rare in children (<5% of pediatric vertigo).
— Pediatric vertigo more commonly = vestibular migraine, benign paroxysmal vertigo of childhood (a migraine precursor), labyrinthitis, or post-concussive.
— If BPPV is diagnosed in a child, Epley is safe and effective; consider screening for prior head trauma.
— Persistent or recurrent pediatric vertigo → refer to pediatric neurology/otolaryngology.
— Female, history of migraine, recurrent vertigo lasting minutes to hours (not seconds), photophobia/phonophobia, may have aura.
— Treat with migraine prophylaxis (propranolol, topiramate, amitriptyline) and lifestyle modification.
— Often coexists with BPPV — manage both.
— After head trauma or whiplash, bilateral or multi-canal BPPV is more common; expect higher recurrence and may need multiple repositioning sessions.
Key distinction: Vertigo lasting seconds with position change = BPPV. Vertigo lasting minutes–hours with headache or aura = vestibular migraine. Vertigo lasting days continuously = vestibular neuritis.
Board pearl: Epley is the safest vertigo treatment in pregnancy — choose it over any antihistamine or benzodiazepine on the exam.
— Falls and fall-related injuries — hip fracture, head injury, subdural hematoma in elderly on anticoagulants.
— Driving accidents — sudden vertigo at the wheel; counsel cessation until symptoms controlled.
— Anxiety, agoraphobia, depression — patients restrict activity, become deconditioned, lose independence.
— Functional decline and loss of independence in elderly — a path to long-term care placement.
— Workplace injury or absenteeism — particularly in roofers, scaffolders, drivers, healthcare workers.
— Conversion to a different canal (canal switching) — most commonly posterior → horizontal; recognized by change in nystagmus pattern; treat with appropriate canal-specific maneuver.
— Nausea, vomiting, transient worsening during/immediately after maneuver — give pre-procedure antiemetic if history of severe nausea.
— Cervical strain in patients with neck disease.
— Vertebral artery dissection — extraordinarily rare with Epley; theoretical concern in patients with known vascular disease or connective tissue disorders (Ehlers-Danlos, Marfan).
— Retinal detachment, lens dislocation — theoretical with rapid head positioning; avoid in high-risk patients.
— Anticholinergic delirium in elderly (meclizine, dimenhydrinate, promethazine).
— Sedation, falls, dependence (benzodiazepines).
— Extrapyramidal symptoms (prochlorperazine, metoclopramide).
— QT prolongation (ondansetron, especially with other QT-prolonging agents).
— ~15% per year, cumulative ~50% at 5 years.
— Higher in post-traumatic, post-vestibular neuritis, low vitamin D, osteoporosis, and migraine patients.
— Counsel patients to recognize symptoms early and self-refer.
Step 3 management: After successful Epley, document a return precaution plan — return for recurrent symptoms, persistent unsteadiness >1 week, any neurologic change, or falls.
Board pearl: The most common "complication" tested is canal conversion — recognize horizontal nystagmus after Epley and switch to the Lempert (BBQ) roll maneuver.
— Sudden severe headache + vertigo → cerebellar hemorrhage.
— Focal neurologic deficits: diplopia, dysarthria, dysphagia, weakness, sensory loss, ataxia disproportionate to vertigo.
— Vertical, direction-changing, or non-fatiguing nystagmus.
— Inability to sit or walk unassisted — suggests cerebellar stroke (BPPV patients are unsteady but ambulate).
— Vascular risk factors (age, HTN, AF, smoking) with new vertigo and any neuro sign → posterior circulation stroke workup with MRI/MRA.
— HINTS central pattern: normal head impulse, direction-changing nystagmus, skew deviation present.
— Failure of 2–3 properly performed repositioning maneuvers.
— Atypical nystagmus or atypical history.
— Suspected horizontal or anterior canal involvement beyond primary care comfort.
— Recurrent BPPV (≥3 episodes/year).
— Coexisting hearing loss, tinnitus, or aural fullness (Ménière workup).
— Suspected superior canal dehiscence (Tullio phenomenon, autophony).
— Suspected vestibular migraine, MS, episodic ataxia syndromes, or cerebellar disease.
— Persistent imbalance after BPPV resolves (vestibular hypofunction).
— Elderly with fall risk and deconditioning.
— Patients failing self-directed Brandt-Daroff exercises.
— Severe vomiting with dehydration unable to tolerate PO.
— Inability to ambulate safely at home.
— Any red flag suggesting central pathology.
CCS pearl: A CCS case of "dizziness" in a vasculopath with ataxia and dysarthria should escalate to emergency MRI brain with MRA and neurology consult — not Epley.
Board pearl: The single most reliable bedside discriminator of central vs peripheral acute vertigo is the HINTS exam, more sensitive than early MRI (which misses ~15% of acute posterior circulation strokes in first 48 hours).
— Continuous vertigo lasting days, severe, with nausea/vomiting, gait instability.
— Often follows viral URI.
— Spontaneous horizontal-torsional nystagmus that does not change direction.
— Abnormal head impulse test (corrective saccade toward affected side).
— Hearing is preserved (vs labyrinthitis, which adds hearing loss).
— Treat with short course corticosteroids (methylprednisolone taper) within 3 days of onset; vestibular rehabilitation.
— Vestibular neuritis + hearing loss/tinnitus (cochlea also involved).
— Steroids ± antivirals if suspected viral; ENT referral.
— Triad: episodic vertigo (20 min to several hours) + fluctuating low-frequency sensorineural hearing loss + tinnitus + aural fullness.
— Pathology: endolymphatic hydrops.
— Manage with low-salt diet, diuretics (HCTZ-triamterene), betahistine (off-label in US), intratympanic gentamicin or steroids, endolymphatic sac surgery in refractory cases.
— CN VIII Schwann cell tumor, often at the cerebellopontine angle.
— Asymmetric sensorineural hearing loss, tinnitus, mild imbalance (not severe vertigo — slow growth allows compensation).
— MRI IAC with gadolinium is diagnostic.
— Bilateral schwannomas = NF2.
— Sound- or pressure-induced vertigo (Tullio phenomenon), autophony, pulsatile tinnitus.
— CT temporal bone shows dehiscence of bone over superior canal.
— Vertigo + hearing loss after barotrauma, straining, or head trauma.
Key distinction: All of these produce vertigo lasting minutes, hours, or days continuously — only BPPV produces brief (<1 min) positional episodes. Use duration and trigger as your sorting axes on Step 3.
Board pearl: Acute continuous vertigo + hearing loss + URI = labyrinthitis. Acute continuous vertigo without hearing loss = vestibular neuritis. Episodic vertigo + fluctuating hearing loss + fullness = Ménière.
— Vertigo + brainstem signs (diplopia, dysarthria, dysphagia, crossed sensory/motor deficits) or cerebellar signs (ataxia, dysmetria, intention tremor).
— Risk factors: HTN, AF, smoking, diabetes, age, vasculopathy.
— MRI brain with DWI is study of choice; CT misses early posterior fossa infarcts.
— Manage as acute stroke: tPA if eligible, antiplatelet, secondary prevention.
— Sudden severe vertigo, headache, vomiting, ataxia.
— Surgical emergency if >3 cm or brainstem compression — neurosurgical evacuation.
— Young adult with recurrent vertigo, optic neuritis, internuclear ophthalmoplegia, sensory/motor deficits separated in time and space.
— MRI brain/spine with contrast; CSF oligoclonal bands.
— Recurrent vertigo episodes lasting 5 minutes to 72 hours, with current or prior migraine history; photophobia/phonophobia.
— Most common cause of episodic vertigo after BPPV.
— "Dizziness" on standing, not spinning; check orthostatic vitals.
— Causes: dehydration, antihypertensives, alpha-blockers, diabetic autonomic neuropathy, Parkinson's, MSA.
— Arrhythmia (AV block, AF with RVR, VT), aortic stenosis, HCM — patient describes near-faint, not spinning.
— Order ECG, consider echo and ambulatory monitoring.
— Persistent subjective dizziness without nystagmus or positional trigger; often with hyperventilation, paresthesias.
— Persistent Postural-Perceptual Dizziness (PPPD) — chronic non-spinning dizziness exacerbated by motion and visual stimuli.
Key distinction: Vertigo (true spinning) localizes to vestibular or central pathways; presyncope localizes to cardiovascular; disequilibrium localizes to proprioception/cerebellum; psychogenic dizziness is diagnosis of exclusion. The first history question on Step 3 is always: "What do you mean by dizzy?"
Board pearl: In acute prolonged vertigo, HINTS exam outperforms early MRI — a single benign HINTS pattern (abnormal head impulse, unidirectional nystagmus, no skew) is reassuring for peripheral cause.
— Document the affected canal, the maneuver performed, immediate post-procedure response, and any residual symptoms.
— Provide written patient education on BPPV, expected mild unsteadiness 24–48 hours, and recurrence risk.
— Activity guidance: No driving for the remainder of the day; resume normal activities the next day. No long-term head movement restrictions.
— Teach self-administered modified Epley at home for select motivated patients with documented recurrent BPPV — written diagram or video resources.
— Brandt-Daroff exercises as an adjunct: 5 repetitions, 3 times daily for 2 weeks, especially if mild residual symptoms.
— Vitamin D repletion if 25-OH vitamin D <20 ng/mL; 800–1000 IU/day plus calcium 1000–1200 mg/day reduces recurrence (randomized data).
— Osteoporosis screening and management in postmenopausal women with recurrent BPPV.
— Avoid known triggers when feasible: extreme neck extension (dental work, salon shampoo bowls), prolonged supine head-down positioning.
— Address coexisting migraine with prophylactic therapy if vestibular migraine overlap.
— Sleep position counseling is not required — old advice to sleep upright is outdated.
— Patients with recent vertigo should not drive until episodes resolve; document discussion.
— Pilots, commercial drivers, crane operators — coordinate with occupational medicine and report per state/federal rules.
— BPPV is a high-value condition: bedside diagnosis and treatment in one visit, no imaging required, with high cure rates — exemplifies cost-conscious, guideline-concordant family medicine.
Step 3 management: A patient with recurrent BPPV (3 episodes in a year) should be counseled, taught home Epley if appropriate, have vitamin D checked, and referred to ENT/vestibular PT if recurrences persist.
Board pearl: Postmenopausal women with recurrent BPPV should be evaluated for osteoporosis — shared otoconia/bone calcium metabolism links the two.
— 1-week recheck by phone or visit: reassess symptoms; if persistent, repeat Dix-Hallpike and repeat Epley.
— If positive again after 2–3 properly performed maneuvers, refer to ENT or neuro-otology within 2–4 weeks.
— If symptoms fully resolved, no scheduled follow-up needed; return PRN.
— Symptom diary: frequency, duration, triggers of vertigo episodes.
— Fall log in elderly.
— Gait/balance assessment (Timed Up and Go, Berg Balance Scale) at follow-up in high-risk patients.
— Hearing assessment if any new auditory symptoms develop.
— Structured physical therapy program with gaze stabilization, habituation, and balance retraining exercises.
— Indicated for: persistent imbalance after BPPV resolves, vestibular hypofunction (post-neuritis), recurrent BPPV with deconditioning, elderly fallers, PPPD.
— Evidence: VRT improves balance and reduces fall risk; superior to no treatment.
— Typically 4–8 weekly sessions plus daily home exercises.
— BPPV is mechanical, not dangerous, and highly treatable — reassurance reduces anxiety-driven persistence.
— Recurrence is common but not progressive; each episode is treatable.
— Symptoms of red flags requiring urgent return: focal weakness, severe headache, double vision, slurred speech, difficulty walking, hearing change.
— Driving safety, home safety (remove rugs, install grab bars, lighting in stairs/halls).
— Document Epley clearly in the chart, including affected side and outcome — communicates to covering providers and avoids redundant workup.
— Loop in pharmacy for medication review in elderly; deprescribe meclizine if started elsewhere.
Step 3 management: Recurrent or refractory BPPV warrants ENT referral and consideration of vestibular rehabilitation — both improve long-term outcomes and patient confidence.
Board pearl: Vestibular rehabilitation is not the first-line treatment for BPPV — Epley is. VRT is for residual imbalance, vestibular hypofunction, and recurrent or refractory cases.
— Although low-risk, discuss expected vertigo and nausea during the procedure, possibility of transient worsening, rare cervical strain, and theoretical risk of canal conversion.
— Document verbal consent in the chart; written consent generally not required for office maneuvers but institution policy may vary.
— Special consent edge case: Patients with severe cervical spine disease, recent neck surgery, or known carotid stenosis require additional discussion of alternatives (Semont maneuver, modified positioning, referral); document risk-benefit shared decision-making.
— A patient with active vertigo who insists on driving home creates a physician duty to counsel and document. In some states (e.g., California, Pennsylvania, Oregon, Nevada), physicians have mandatory reporting obligations for medical conditions that impair driving. Know your state's rules.
— Commercial drivers, pilots, and heavy-machinery operators require occupational medicine coordination before return to work.
— Untreated BPPV contributes to falls — a Never Event in inpatient settings. Inpatients diagnosed with BPPV should be flagged as fall risk, with bed alarms, non-slip footwear, and assistance for ambulation.
— Document fall-prevention discussion as part of the CMS Annual Wellness Visit in patients ≥65.
— When a patient is discharged from the ED with "vertigo" without Dix-Hallpike performed, the primary care follow-up visit must include bedside testing — a critical handoff vulnerability where BPPV is missed and chronic meclizine is inappropriately continued.
— Communicate the Epley procedure, affected side, and recurrence plan in the after-visit summary to specialists and to the patient.
— BPPV is underdiagnosed in resource-limited settings; bedside diagnosis without imaging makes it ideal for high-value, equitable care.
— Failure to diagnose posterior circulation stroke labeled as "BPPV" is a recognized malpractice pattern — always perform a focused neurologic exam and document the absence of red flags before attributing vertigo to BPPV.
Step 3 management: Document the neuro exam, Dix-Hallpike result, Epley maneuver performed, post-procedure assessment, driving counseling, and return precautions — this complete note protects both patient and physician.
Board pearl: Misattributing a posterior circulation stroke to "BPPV" is the highest-stakes error — always rule out central red flags first.
— Peripheral (benign): abnormal head impulse, unidirectional nystagmus, no skew deviation.
— Central (stroke): normal head impulse, direction-changing nystagmus, skew deviation present.
Board pearl: "Brief positional vertigo, normal neuro exam, positive Dix-Hallpike" → Epley maneuver is the correct next step every time.
— "A 68-year-old woman reports episodes of spinning when rolling over in bed, lasting <30 seconds, for 1 week. Neuro exam normal. Dix-Hallpike provokes upbeat-torsional nystagmus on the right with a 5-second latency."
— Answer: Perform Epley (canalith repositioning) maneuver on the right.
— Distractors: meclizine, MRI brain, ENT referral, vestibular suppressants — all wrong as first step.
— "A 72-year-old man with HTN and AF presents with sudden vertigo, dysarthria, and gait ataxia. Nystagmus is direction-changing and does not fatigue."
— Answer: Emergent MRI brain with DWI; consider stroke alert. Not Epley.
— "An 80-year-old on chronic meclizine for 'dizziness' presents after a fall. He reports brief spinning when bending over."
— Answer: Stop meclizine, perform Dix-Hallpike, treat with Epley.
— "A patient with persistent positional vertigo despite two properly performed Epley maneuvers."
— Answer: Refer to otolaryngology/neuro-otology for vestibular testing.
— "A 60-year-old postmenopausal woman with her fourth BPPV episode in a year. Vitamin D level is 14 ng/mL."
— Answer: Supplement vitamin D and calcium; consider osteoporosis evaluation.
— "A 28-year-old at 24 weeks gestation with classic BPPV symptoms."
— Answer: Epley maneuver. Not meclizine, not benzodiazepines.
— Episodic vertigo + low-frequency hearing loss + tinnitus + fullness = Ménière, not BPPV.
— Continuous vertigo for 3 days post-URI, no hearing loss, abnormal head impulse test.
— Answer: Methylprednisolone taper + vestibular rehab.
— Patient with active BPPV asks if she can drive home.
— Answer: Counsel against driving today; document.
— Order: vital signs, focused neuro exam, Dix-Hallpike, Epley maneuver, patient education, 1-week follow-up. Avoid MRI, avoid chronic meclizine.
Step 3 management: Whenever the stem combines "brief," "positional," "normal neuro exam," and "Dix-Hallpike positive," the answer is the Epley maneuver — internalize this as a reflex.
Benign paroxysmal positional vertigo (BPPV) is brief (<1 minute) positionally triggered vertigo from otoconia in (usually) the posterior semicircular canal, diagnosed at the bedside with the Dix-Hallpike maneuver and treated in the same visit with the Epley (canalith repositioning) maneuver — no imaging, no chronic medications.
Board pearl: When a Step 3 stem features brief positional vertigo, a normal neurologic exam, and a positive Dix-Hallpike maneuver, the correct next step is perform the Epley (canalith repositioning) maneuver — every single time.