BPPV best practice: Understanding, applying and advancing the 2017 Revised OHNS BPPV Clinical Practice Guideline - Academy of ...
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2/18/18 BPPV best practice: Understanding, Janene M. Holmberg, PT, DPT, NCS applying and Intermountain Hearing & Balance Center, SLC, UT advancing the 2017 Susan L. Whitney, PT, DPT, FAPTA Revised OHNS BPPV Professor in Physical Therapy and Otolaryngology Clinical Practice University of Pittsburgh, PA Guideline 1
2/18/18 CPG Implementation Survey We invite you to take part in a implementation Survey to better understand how Clinical Practice Guidelines (CPGs) are used and how we can improve implementation. Use the QR code to access the survey Answer at most 14 questions (
2/18/18 Objectives: Upon completion of this presentation, the learner will be able to: ü Understand key differences in the new AAO-HNS 2017 CPG for BPPV ü Understand key action statements and implications for clinical practice ü Understand the mandate for timely referral for BPPV treatment ü Understand resources available in connection with the new CPG Objectives: ü Discuss the art of BPPV practice beyond the narrow definitions of the CPG ü What “we wished we could have said” ü Discuss clinical applications of the CPG ü Discuss needs for future research ü Important role of PT as a key professional in shaping the art and science of optimal BPPV management 3
2/18/18 Benign Paroxysmal Positional Vertigo (BPPV) } Dizziness accounts for 5.6 million clinic visits a year in the US with 17-42% BPPV } Bhattacharyya N, 2008, Hanley, 2001 } BPPV is the most common vestibular disorder across the life span and most common cause of recurrent vertigo Benign Paroxysmal Positional Vertigo (BPPV) ◦ Lifetime prevalence 2.4 % ◦ >60 years old, 7times greater incidence of BPPV ◦ 86% experience interrupted activities of daily living or lost work ◦ Only 10% seen by an MD will receive a repositioning maneuver Van Beuren, 2007 4
2/18/18 CPG Multi-Disciplinary Panel (2017 revision) Jonathan Edlow, MD Emergency MD American Academy of Emergency Medicine (AAEM) Hussam El-Kashlan, MD Otolaryngologist American Otological Society (AOS) Terry Fife, MD Neurologist American Academy of Neurology (AAN) Janene M. Holmberg, Physical Therapist American Physical Therapy Association (APTA) PT, DPT, NCS Kathryn Mahoney Consumer Advocate Vestibular Disorders Association (Consumer Organization) Deena B. Hollingsworth, MSN, FNP-BC, CORLN Nurse Society of Otorhinolaryngology Head-Neck Nurses (SOHN) Richard Roberts, PhD Audiologist American Academy of Audiology (AAA) Michael D. Seidman, MD, FACS Otolaryngologist AAO-HNSF Board of Governors (BOG) Robert Wm. Prasaad Steiner, MD, PhD Family Practice MD American Academy of Family Physicians (AAFP) Betty Tsai Do, MD Otolaryngologist AAO-HNSF Otology and Neurotology Education Committee Courtney C. J. Voelker, AAO-HNSF Section for Residents and Fellows/AAO-HNSF MD, PhD Otolaryngologist Equilibrium Committee Richard W. Otolaryngologist AAO-HNSF Physician Payment Policy (3P) Committee Waguespack, MD 2017 OHNS BPPV Summary of key changes (entnet.org website) • Evidence from 2 clinical practice guidelines, 20 systematic reviews, and 27 randomized controlled trials • Enhanced review process to include public comment & journal peer review • Increased patient education resources • Plain language edition available • Frequently asked question handout (can be co-branded) • Increased emphasis on patient education/ shared decision making 5
2/18/18 BPPV pamphlet – some of the questions How common What caused my BPPV Can BPPV be treated Can BPPV go away on its own? 2017 OHNS BPPV Summary of key changes • Stronger action statements • Use and diagnostic criteria for Dix Hallpike and roll testing (history alone is NOT sufficient) • Identify specific quality of nystagmus • Inclusion of lateral canal BPPV differential diagnosis table and description of the maneuvers • Continued emphasis of strong recommendation AGAINST… • Medications • Need/recommendation for further vestibular testing and imaging • Postmaneuver precautions 6
2/18/18 CRP as initial therapy Thereis high-quality evidence that patients diagnosed with BPPV should be offered expeditious treatment with the canalith repositioning maneuver” (pg. S20) BPPVshould be diagnosed with Dix-Hallpike/roll testing CRP as initial therapy There is NO evidence.. to suggest that any.. medications are effective as a primary treatment or as a substitute for a repositioning maneuver Repositioning maneuvers are different from Cawthorne-Cooksey or Brandt- Daroff exercises 7
2/18/18 CPG Algorithm Target Population: >18 years old Purpose: improve quality of care/outcomes for BPPV accurate and efficient diagnosis of BPPV Reduceinappropriate use of vestibular suppressant medications, decrease the inappropriate use of ancillary testing i.e. imaging Increase use of therapeutic repositioning maneuvers. CPG Algorithm Target audience: All clinicians who are likely to diagnose and manage patients with BPPV Any setting in which BPPV would be identified, monitored, or managed NEW diagnostic and treatment visual ALGORITHM 8
2/18/18 Open Access resources: (www.entnet.org/BPPVCPG) Fullguideline Executive summary Podcasts both for otolaryngologists and non-otolaryngologists Customizable versions of patient handouts Plain language summary Press release and links to media articles Strength of Action Terms Defined Strong Recommendation Quality of supporting evidence high (grade A/B or level 1-2) Clinicians should follow unless clear and compelling rationale for alternative Recommendation Quality of evidence not as high (grade B/C or level 3-4) Clinicians should generally follow but remain alert to new information Option Quality of evidence is suspect (grade D or level 5 or not well done studies) to show clear advantage to one approach versus another 10
2/18/18 CPG Summary Statement Action Strength 1a.Diagnsosis of Diagnose posterior semicircular canal BPPV when Strong posterior canal vertigo associated with torsional, up-beating nystagmus recommendation BPPV is provoked by the Dix-Hallpike maneuver 1b. Diagnosis of Diagnose lateral canal BPPV when history compatible Recommendation lateral (horizontal) with BPPV and diagnostic testing (Dix Hallpike or canal BPPV Supine Roll Test) provokes horizontal nystagmus 2a. Differential Differentiate BPPV from other causes of imbalance, Recommendation diagnosis dizziness and vertigo. 2b. Modifying Assess for factors that modify management Recommendation factors 3a. Radiographic RADIOGRAPHIC testing should not be obtain in the Recommendation testing absence of additional signs and/or symptoms inconsistent with BPPV CPG Summary 3b. Vestibular Vestibular testing should not be obtained Recommendation testing 4a. Clinicians should treat, or refer to a clinician Strong Repositioning who can treat, patients with posterior canal recommendation procedures as BPPV with a canalith repositioning initial therapy procedure. 4b. Post Strong Clinicians should not recommend procedural recommendation post-procedural postural restrictions restrictions (against) 4c. Observation Clinicians may offer observation with follow Option as initial up as initial management for patients with therapy BPPV. 11
2/18/18 5. Vestibular The clinician may offer vestibular rehabilitation, Option rehabilitation either self-administered or with a clinician, in the therapy treatment of BPPV. 6. Medical Clinicians should not routinely treat BPPV with Recommendation therapy vestibular suppressant medications (against) 7a. Outcome Clinicians should reassess patients within 1 Recommendation Assessment month. 7b. Evaluation Clinicians should evaluate or refer to a clinician Recommendation of treatment who can evaluate, patients with persistent failure 8. Education Clinicians should educate regarding the impact of Recommendation BPPV on safety, disease recurrence and the importance of follow-up. DIAGNOSIS OF POSTERIOR SEMICIRCULAR CANAL BPPV Criteria: • Vertigo associated with torsional, up-beating nystagmus is provoked by the Dix‑‑Hallpike maneuver • Performed by bringing patient to supine position with the head turned 45 degrees and neck extended 20 degrees with the affected ear down Strong recommendation based on diagnostic studies with minor limitations and a preponderance of benefit over harm. 12
2/18/18 Supporting Text Historyalone not adequate to make diagnosis of BPPV Most commonly due to canalithiasis but can be cupulolithiasis (>1min duration) Supporting Text Negative DH does not rule out a diagnosis of BPPV Care with certain conditions: cervical stenosis, limited cervical ROM, Down’s syndrome, severe rheumatoid arthritis, cervical radiculopathies, Paget’s disease, Ankylosing Spondylitis, low back dysfunction, spinal cord injury, morbid obesity 13
2/18/18 DIAGNOSIS OF LATERAL (HORIZONTAL) SEMICIRCULAR CANAL BPPV If the patient has a history compatible with BPPV and the Dix‑‑Hallpike test exhibits horizontal or no nystagmus, the clinician should perform, or refer to a clinician who can perform a supine roll test to assess for lateral semicircular canal BPPV Recommendation based on diagnostic studies with limitations and a preponderance of benefit over harm Supporting Text Second most common form of BPPV Can be seen with canal conversion during a posterior canal repositioning Description of 2 forms of lateral canal BPPV (geotropic vs apogeotropic) Valuable chart is included on selected methods for identifying the affected ear 14
2/18/18 Determining Affected Side DIFFERENTIAL DIAGNOSIS Clinicians should differentiate, or refer to a clinician who can differentiate, BPPV from other causes of imbalance, dizziness and vertigo Recommendation Benefits: Prevent false positive diagnosis of BPPV when another condition actually exists 15
2/18/18 Supporting Text BPPV is often under or misdiagnosed Nice section in the guidelines for differential diagnosis of dizziness Supporting Text Centralvs peripheral section about differential diagnosis The CPG also suggests that you consider: Panic/anxiety Cervical Orthostatic hypotension medications 16
2/18/18 MODIFYING FACTORS Clinicians should assess patients with BPPV for factors that modify management including: • impaired mobility or balance • central nervous system disorders • a lack of home support • increased risk for falling Recommendation based on observational and cross- sectional studies and a preponderance of benefit over harm. Supporting Text High incidence of medical comorbidities Diabetes, anxiety, head trauma, migraine, peripheral neuropathy, CNS disorder Need for falls screening and/or assessment Have you had 2 or more falls in past year Do you feel unsteady when standing/walking Do you worry about falling Cautionto not miss BPPV when other co- morbidity is prominent, e.g. Multiple sclerosis, Parkinson's disease, concussion, migraine 17
2/18/18 RADIOGRAPHIC TESTING Clinicians should not obtain radiographic imaging in a patient who meets diagnostic criteria for BPPV in the absence of additional signs and/or symptoms inconsistent with BPPV that warrant imaging. Recommendation against radiographic imaging Supporting Text Retrospective review of 2,374 elderly patients with MRI failed to detect any significant differences between persons with and without dizziness Grill E et al, 2014 Radiographic imaging is indicated in patients with additional neurologic symptoms atypical for BPPV 18
2/18/18 Opinion Only I have seen patients in the hospital for BPPV in the morning. They had fully cleared (no symptoms and a negative Dix Hallpike and roll test) after the repositioning The resident wants them scanned prior to leaving Their BPPV can return from lying flat in the scanner VESTIBULAR TESTING Clinicians should NOT order vestibular testing in a patient who meets diagnostic criteria for BPPV in the absence of additional vestibular signs and/or symptoms inconsistent with BPPV that warrant testing Recommendation against vestibular testing based on diagnostic studies with limitations and a preponderance of benefit over harm. 19
2/18/18 Supporting Text Defined vestibular function tests Comprehensive video electronystagmography, rotary chair test, vestibular evoked myogenic potenials, computerized Posturography, computerized Head Impulse Testing Indications for testing Suspect comorbid vestibular hypofunction Atypical nystagmus Failed response to repositioning Frequent reoccurrences Supporting Text Diagnosiscan be made without specialized equipment “This does not imply that use of video- oculographic technology.. Should not be used when available” The goggles help in BPPV identification and differentiation Unclear or atypical nystagmus may be seen in up to 13% of persons seen Bath AP et al, 2000 20
2/18/18 REPOSITIONING PROCEDURES AS INITIAL THERAPYINITIAL THERAPY Clinicians should treat, or refer to a clinician who can treat, patients with posterior canal BPPV with a canalith repositioning procedure. Strong recommendation based on systematic reviews of randomized controlled trials and a preponderance of benefit over harm Supporting Text Single canalith repositioning maneuver is >10 times more effective than 3 times a week Brandt Daroff exercises (Hilton MP et al, 2014) Success at 80.5% with the canalith repositioning maneuver vs 25% success with the Brandt Daroff exercise (Amor-Dorado JC 2012) 21
2/18/18 Supporting Text High variability in the number of times the canalith repositioning maneuver is applied for the initial intervention Benefit of multiple repositioning maneuvers in persons who are not fully cleared (Gordon and Gadoth, 2004; Reinink H et al 2014) Supporting Text 2 major treatments for the posterior canal are the modified Epley and the Semont (Liberatory maneuver) Lateral canal BPPV Evidence is mounting for the repositioning maneuvers Determining the side of the horizontal canal BPPV and confusion in names of the maneuvers in literature is a problem 22
2/18/18 Biomechanical physics of BPPV (Rabbitt) 23
2/18/18 DIX-HALLPIKE TESTING BPPV is caused by displaced otoconia from the Only one way utricle most commonly into the posterior canal OUT Hillman & McLaren, 1979 Canalith Repositioning Treatments or Epley Maneuvers 24
2/18/18 Biomechanics of canalith repositioning maneuver R. Rabbitt Canalith Repositioning Treatment or Epley Maneuver 25
2/18/18 Changing Maneuver Based on Quality of Eye movement Supporting Text. Horizontalcanal BPPV: geotropic/apogeotropic Increased spontaneous recovery rates Maneuvers discussed in the CPG Lempert 360 roll Gufoni for geotropic lateral canal BPPV Success ranges 50-100% (Cassani 2011; Kim et al 2012) 26
2/18/18 Supporting Text. Gufoni for apogeotropic lateral canal BPPV Success rates are 62-73% (Kim JS 2012), Forced Prolonged Positioning Success ranges 75-90% (Casani 2002; Chiou W-Y 2005; Appiani GC 2005) Self Administered modified Epley and Semont Success 64% vs 23% for Brandt Daroff (Radtke et al 1999) Lempert Maneuver 27
2/18/18 Gufoni for geotropic type of benign paroxysmal positional vertigo involving the horizontal canal (HC) (left affected ear) Randomized clinical trial for geotropic horizontal canal benign paroxysmal positional vertigo. Kim, Ji; Oh, Sun-Young; Lee, Seung-Han; Kang, Ji; Kim, Dong; Jeong, Seong-Hae; Choi, Kwang-Dong; Moon, In; Kim, Byung; Kim, Hyo Neurology. 79(7):700-707, August 14, 2012. DOI: 10.1212/WNL.0b013e3182648b8b 2 Geotropic Right Lateral Canal • Forced Prolonged Positioning (Vannuchhi et al, 1997) – • Shown for geotropic right LC-BPPV. • Geotropic –Lie down on back. Roll towards involved side. Sleep on uninvolved side. 28
2/18/18 Apogeotropic Right Lateral Canal • Forced Prolonged Positioning (Vannuchhi et al, 1997) Apogeotropic – Lie down on back. Roll towards uninvolved side. Sleep on involved side. POST-PROCEDURAL RESTRICTIONS Clinicians should not recommend post‑‑ procedural postural restrictions after canalith repositioning procedure for posterior canal BPPV. Strong recommendation against restrictions based on randomized controlled trials with minor limitations and a preponderance of benefit over harm. 29
2/18/18 OBSERVATION AS INITIAL THERAPY Clinicians may offer observation with follow up as initial management for patients with BPPV. Option based on data from cohort and observational studies with heterogeneity and a relative balance of benefits and harms. Supporting Text We don’t like this statement Frustrating given the level of success with the repositionings and the potential RISK Medical option when disease is self limiting and/or when likely benign Spontaneous rates 27-38% (Hilton, 2014) Usually no serious adverse effects Nausea, cervical spine pain, headache Listed contra indications 30
2/18/18 Supporting Text No consensus on length of “observation” Panel favored CRP in subsets of patients High risk for falls More disabling symptoms More distraught/anxious (PPPD not named yet) Observation may be more of option in Primary care settings Supporting Text Risksof observing, patients should be informed.. Possibility of longer duration of symptoms WANTED TO ALSO SAY: Fall risk Death Disability Poorerquality of life Triggering event for persistent postural and perceptual dizziness (PPPD) 31
2/18/18 VESTIBULAR REHABILITATION The clinician may offer vestibular rehabilitation in the treatment of BPPV. Option based on controlled observational studies and a balance of benefit and harm. Supporting Text There are physicians using Cawthorne Cooksey/Brandt Daroff (BD) for BPPV Vestibular rehab is significantly less effective as first-line treatment Indicated for patients Persistent disability following repositioning (refractory and/or high recurrence) Refuse the repositioning Not candidate for the repositioning or it is too difficult to perform the maneuvers Comorbid modifying factors 32
2/18/18 Supporting Text Insome cases, vestibular rehab is necessary optimize resolution of disability Clear residual complaints (dizziness/ balance) Improved gait stability Decrease fall risk Secondary assessment to further differential diagnosis Comorbid hypofunction, modifying factors for recovery Supporting Text Clarification on Customized vestibular rehabilitation vs generic Potential to improve outcomes Role of better education and more tailored exercise (Hall et al, 2016) 33
2/18/18 MEDICAL THERAPY Clinicians should not routinely treat BPPV with vestibular suppressant medications such as antihistamines and/or benzodiazepines. Recommendation against routine medication based on observational studies and a preponderance of benefit over harm. Supporting Text Review of pharmacologic management with vestibular suppressant medications Benefit Reduce spinning Reduce accompanying motion sickness 34
2/18/18 Supporting Text: Harm Drowsiness, cognitive deficits, GI motility, vision Especially polypharmacy effects in elderly Independent risk factor for falls Interference with central compensation for vestibular insult Obscure diagnostic findings Evidencethat BPPV, especially torsional, nystagmus is not suppressed well with common vestibular suppressants Supporting Text Data continues to strongly reinforce superiority of active treatment (repositioning) for BPPV rather then medication Some benefit as adjunctive in select patients Minimizing discomfort during CRP Prophylaxis for severe nausea and/or vomiting Treating psychological anxiety secondary to BPPV 35
2/18/18 Supporting Text Power statement “There is no evidence in the literature to suggest that any of these vestibular suppressant medication are effective as a definitive, primary treatment for BPPV or effective as a substitute for repositioning maneuvers.” p.30 of the CPG OUTCOME ASSESSMENT Clinicians should reassess patients within 1 month after an initial period of observation or treatment to document resolution or persistence of symptoms. Recommendation based on observational outcomes studies and expert opinion and a preponderance of benefit over harm. 36
2/18/18 Supporting Text Stressed variable responses to CRP Accuracy of initial diagnosis Comorbidities/modifying factors Supporting Text Treatment failures defined as >2-5 canalith repositioning sessions Definition of treatment success Subjective symptom resolution and/or conversion to a negative Dix Hallpike If symptom-based assessment used Detailed to differentiate decreased/minimized symptoms due to AVOIDANCE from true symptom resolution 37
2/18/18 Supporting statement Responseto treatment, optimal recovery and any residual symptoms need to be assessed Ifurgent care initial treatment, the primary care physician is suitable to reassess Time frame within 1 month Rationale Safety with initial diagnosis Reduce quality of life impact of unresolved BPPV Especially as care shifts from the emergency department/primary care physician rather than subspecialty EVALUATION OF TREATMENT FAILURE Clinicians should evaluate, or refer to a clinician who can evaluate, patients with persistent symptoms for unresolved BPPV and/or underlying peripheral vestibular or central nervous system disorders. Recommendation based on observational studies of diagnostic outcomes in patients with BPPV and a preponderance of benefit over harm. 38
2/18/18 Supporting Text Need to expeditiously identify treatment failures Failure rates of single-session repositioning 8-50% Rationale Persistent BPPV may be responsive to further repositionings and/or vestibular rehabilitation Success up to 90-98% with additional repositionings Canalith respositionings are the initial treatment of choice for initial failures Supporting Text Coexisting vestibular condition may be present Serious central nervous system disorder may simulate BPPV and need to be identified Case of paroxysmal positional nystagmus as first sign of paraneoplastic syndrome Atypical refractory to care cases need to be questioned for central nervous system disease Apogeotropic may be more refractory Cupulolithiasis in general takes longer to get better 39
2/18/18 Supporting Text Factors associated with treatment failure Secondary BPPV, e.g. head trauma, neuritis, & Menieres Migraine Complicating comorbiities e.g. Peripheral Neuropathy Biomechanical limitations to optimal positioning e.g severe kyphoscoliosis BPPV associated with subclinical, underlying impaired vestibular function Pollak L et al (2002) Supporting Text Transient vestibular dysfunction (“vestibular hangover”) can occur (1-3 months) with BPPV even following successful repositionings especially in elderly Need to identify these people and start vestibular rehabilitation Improve balance, minimize fall risk, and decrease fear of falling (impaired balance confidence) Black FO (1984), Blatt P (2000), Giacomini PG (2002), Chang W-C (2006) 40
2/18/18 EDUCATION Clinicians should educate patients regarding the impact of BPPV on their safety, the potential for disease recurrence and the importance of follow‑‑up. Recommendation based on observational studies of diagnostic outcomes and recurrence in patients with BPPV and a preponderance of benefit over harm. Supporting Text Expanded and more detailed with hand out Embracing advancing evidence of our treatment efficacy Education, reducing threat, and giving locus of control What we as PT can do SO well Goals of any Education Reassurance Not serious Clinicians experience with disorder and treating Normalize experience (understandable frightening and not so BENIGN) 41
2/18/18 Supporting Text Remove threat Great potential to heal High success rates Patient empowerment Understanding BPPV pathophysiology and rationale for success Capacity and role of remaining active/moving again Optimize Patient Acute and Long term management Recurrence rates 36% (Hilton, 2014) Need for early recognition Greater risk for falls especially with the elderly Importance of follow-up What We wish we could say…. Implications from biomechanical modeling, clinical practice, and non- randomized studies 42
2/18/18 What do we wish we could have said…. Observation is NOT an option Harm outweighing Benefit Stronger lateral canal treatment statements Possibility some patients may need post maneuver precautions/long term restrictions Art of maneuvers Number of repetitions Statements about cupulolithiasis vs canalithiasis ID critical components of maneuvers Rationale and success rates of various maneuvers Uniqueness of individual/customization Skilled vs “Youtube-Rx” maneuver Applying Mathematical models Posterior canal “Epley” Matches ideally with biomechanical model Lateral canal Modeling supports 270 degree roll (involved side to nose down) Can we get rid of any need to think we need to roll prone?? Anecdotal conversions Epley, avoid initial position Research Support Gufoni maneuver success Forced Prolonged Positioning Kim Cupulolith Maneuver 2008 43
2/18/18 Cupulolith Repositioning Maneuver: Apogeotropic, Right LC-BPPV. Goal: Kim, Jo, Chung, Byeon, and Lee, 2011- Moves debris long arm(1st) off utricular (4th) Each position 3 min Vibration 1wth and 4th Sleep uninvolved 97% success after 2 maneuvers 1 2 3 5 4 6 44
2/18/18 Analyzing Gans Maneuver? Hybrid liberatory/canalith Number of articles noted success increased conversion rates to Lateral canal IF in Initial position the debris is far enough into the canal Models stress initial position as critical Rolling could successfully reposition GANs Maneuver “Liberatory” maneuver does not hold up to anatomic scrutiny Liberation could happen from the utricular side but would not cause “Nystagmus burst” Manuever could force a “secondary burst” 45
2/18/18 Predicting a successful treatment in posterior BPPV Oh HJ et al Neurology 2007 10; 68(15): 1219-22 Important to monitor the nystagmus during CRT 78% have a secondary Burst (SB) 12% reversal SB, 10% no SB 80% of BPPV w/reversal and 67% of no SB failed to resolve 100% of BPPV with orthotropic SB resolved 1-2 trials predictive of success Initial Head Position IMPORTANCE Use of sloping or Trendelenberg bed 46
2/18/18 Clinical Practice: Qualtifying disability beyond “otoliths” Refractory BPPV associated with Meniere’s Balatsouras DG et al 2012 Central and psychogenic/ functional contributors Faralli M et al 2014 Triggering of Persistent Postural and Perceptual Dizziness (PPPD) Clinical Practice: Post maneuver Precautions Devaiah, 2010 Meta analysis Do the studies answer?? Frog otoconia stick in 5 min (Otsuka K et al 2010) & randomized controlled studies show no difference But do BPPV need to be “taught” to avoid has the study been done that asks the right question? (This does not make sense to me 47
2/18/18 BPPV Recurrences and Education… With Initial presentation is it correct… “BPPV is highly recurrent, and likely you are going to have this for the rest of your life” Clinical belief that not everyone has the same BPPV recurrence odds Overall 36% recurrence with up to 47% (Hain TC 2000) Schruknecht original theory BPPV is in thirds… 1/3: Benign self limiting, highly responsive (isolated across lifetime)??? 2/3: Increased vulnerability (happens increased risk)??? 3/3: Refractory/difficult cases BPPV: Clinical and Oculographic features in 240 cases; Baloh, 1987 Could we research and further define… Anterior Canal BPPV??? Initial findings… Discharge… 48
2/18/18 What about Anterior canal…. Edited out in review process Although there is growing evidence of the existence, definability and treatment effectiveness of anterior canal BPPV Controversy Complexity of the diagnosis Differentiate from central nervous system involvement Anagnostou 2015 Systematic Review concluded: Anterior canal BPPV can be treated safely Epley or other maneuvers Symptom resolution rates comparable More multicenter controlled trials are needed to make evidence-based recommendations. Advance Practice with Anterior Canal BPPV … Need highly skilled clinicians Vestibular specialization Well controlled research CNS disease False positives from opposite side PC BPPV Inferior Neuritis generatetorsional down beating nystagmus Benign Downbeat Nystagmus of Aging Spontaneous Inversion/Reversal Neurologicdischarge from severe PC Rx 49
2/18/18 Repetitions of Maneuvers??? Perform until evidence of clearing, no standard in research Epley used multiple repositioning's until nystagmus cleared Superior results with repeated repositionings in one session Gordon and Gadoth 2004; Korn et al 2007 Variation in clinic 1-3 repositionings/session Ideal setting: repeat test in 30 minutes and finish with CRT usually 2 per session, at most 3 per session Case Study: How Many Repetitions should you do?? Initial sidelying testing Initial Treatment 50
2/18/18 Retest/2nd CRP Retesting/Teaching home augmentative self CRT Final treatment 51
2/18/18 Key points on differential diagnosis Benign vestibulopathy Migraine Differentiating other benign vestibulopathy… 72y.o with history of recurrent Right Posterior Canal BPPV Return symptoms last 2 weeks Onset associated with tripping and falling Unsuccessful self Canalith Repositioning attempts Central screens/testing NORMAL Computerized Head Impulse testing NORMAL 3 beats Left Beating after head shake Nystagmus Right Dix Hallpike atypical persistent Right Beating nystagmus 52
2/18/18 Initial Exam: Left sidelying and right roll Benign Vestibulopathy NOT BPPV Proposed etiology: “Light Cupula” Kim, 2014 Med Hypothesis; T. Imai, 2014 BMJ Change in density of the endolymph due to inner ear hypoperfusion Trauma from microcirculation/compromise Infection disrupts blood-labyrinth barrier increased proteins in inner ear Seen with sudden sensory neural hearing loss Incidence 4.9% patient’s diagnosed with BPPV 14% patient’s with geotropic direction changing positional nystagmus Kim CH et al, Laryngoscope, 2014 CONSIDERED: “Self-limiting benign condition” 53
2/18/18 Light Cupula Criteria Kim CH 2014 Persistent Geotropic horizontal DCPN No latency (no paroxysmal quality) on Roll testing Presence of Null plane: 15-40 degrees affected side Lean (supine): Horizontal nystagmus beating away from affected side Bow (prone): Horizontal Nystagmus reverses beating toward the affected side Spontaneous nystagmus: beating away Other causes ruled out: Central, Unilateral peripheral hypofunction Clinical characteristics of light cupula vs Lateral Canal Geotropic BPPV (Schubert MC et al 2017, Adapted from Kim CH et al, 2014) Light Cupula BPPV: Canalithiasis Geotropic Nystagmus (GN) YES YES Persistent YES NO Prone reversal of GN YES Transient/NO Fatigability NO YES/NO Null plane YES YES/NO Latency NO YES 54
2/18/18 Management & Outcome Suspect for benign, self limiting acute vestibular crisis Fit criteria for Right “Light Cupula” DOESN’T fit criteria for lateral canal BPPV Educated Taught VORx1 adaptation Returned in a week Nystagmus resolved and symptom free Migraine and Positional Nystagmus/Dizziness Common 3.2 vs 2.4 lifetime prevalence Lempert (2009) Atypical BPPV or Acute Unilateral loss Migraine Hx Features Light, sound Nausea Triggers ?headache 55
2/18/18 Potential for self limiting resolve Comorbidity with definable BPPV 56
2/18/18 Future Research Needs Research needs Diagnosticand cost effective studies to ID subset of patients Require additional vestibular testing and/or radiographic testing Skilled intervention vs self CRT Determine if CPG changes physician/clinician behaviors Perform studies on accuracy of diagnosis and treatment of BPPV in non-specialty settings 57
2/18/18 Research Needs Cost effectiveness for potential advantages for earlier intervention Can we take out “observation” as KAS option Define the subset where observation is HARMFUL Further epidemiologic studies Rates of falls with BPPV as underlying cause/ diagnosis Risk factors associated with development of BPPV Extended cohort studies on measures associated with decreased recurrence Research needs More Studies concerning confirming presence and treatment efficacy for Anterior Canal BPPV More studies on treatment clarification and success rates for Lateral canal BPPV Clarify and standardize the terms use to describe repositioning maneuvers of lateral canal Studieson functional impact of BPPV on home safety, work safety, absences, and driving risks Develop/validate disease-specific QOL measure for BPPV 58
2/18/18 Research Needs Refine the “Art of BPPV” treatment Determine optimal # of CRPs, time interval When might multiple repetitions of maneuver contraindicated ID patient and treatment specific risk factors for recalcitrant BPPV Investigate role/need of addition VR beyond isolated CRP Better Differentiate positional nystagmus/ vertigo that is NOT BPPV When is post maneuver precautions and long term restrictions indicated Summary BPPV 2017 Revised CPG is a powerful document Advocates for treatment Advances differential diagnosis across multiple disciplines and treatment settings Grounds us in state of scientific evidence Calls for us to further advance practice PT has great potential to advance particularly the “Art of BPPV” practice 59
2/18/18 Questions?? 60
BPPV best practice: understanding, applying, and advancing the 2017 Revised Clinical Practice guideline References Janene Holmberg, PT, DPT, NCS (Intermountain Hearing & Balance Center, Salt Lake City, UT) Susan L. Whitney, PT, DPT, PhD, NCS, ATC, FAPTA (University of Pittsburg, PA) Akin FW, et al (2017). Characteristics and Treatment Outcomes of Benign Paroxysmal Positional Vertigo in a Cohort of Veterans. Am J Audiol. 2017;26(4):473-480. Amor-Dorado JD et al. (2012) Particle repositioning maneuver versus Brandt-Daroff Exercise for the treatment of unilateral idiopathic BPPV of the posterior semicircular canal: a randomized prospective clinical trail with short- and long-term outcome. Otol Neurotol. 2012 Oct; 33(8):1401-7. Appiani GC et al (2005) Repositioning maneuver for the treatment of the Apogeotropic variant of horizontal canal BPPV. Otol Neurotol 2005; 26:257-260. Agrawal Y et al (2009) Disorders of balance and vestibular function in US adults: data from the National Health and Nutrition Examination Survey (NHNES), 2001-2004. Arch Intern Med. 2009; 169:938-944. Baloh RW et al. (1987) BPPV: Clinical and oculographic features in 240 cases. Neurology 1987; 37: 371-378. Bergenius J, (2006) Tomanovic T. Persistent geotropic nystagmus – a different kind of cupular pathology and its localizing signs. Acta Otolaryngol 2006; 126:698-704. Bhattacharyya N, Gubbels SP, Schwartz SR, Edlow JA, El-Kashlan H, Fife T, Holmberg JM, et al. (2017) Clinical Practice Guideline: Benign Paroxysmal Positional Vertigo (Update). OHNS 2017, Vol 156 (3S) S1-S 47. Bhattacharyya N, (2017) Gubbels SP, Schwartz SR, et al. Clinical Practice Guideline: Benign Paroxysmal Positional Vertigo (Update) Executive Summary. Otolaryngol Head Neck Surg. 2017; 156: 403-16. Bhattacharyya N, (2017) Hollingsworth DB, Mahoney K and O'Connor S. Plain Language Summary: Benign Paroxysmal Positional Vertigo. Otolaryngol Head Neck Surg. 2017; 156: 417- 25. Bhattacharyya N, Whitney SL et al (2008) Clinical Practice guideline: benign paroxysmal positional vertigo, OHNS. 2008; 129:S47-S81.
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PATIENT INFORMATION Frequently Asked Questions: Benign Paroxysmal Positional Vertigo (BPPV) QUESTION ANSWER What is BPPV? Benign Paroxysmal Positional Vertigo (BPPV) is the most common inner ear problem and cause of vertigo, or false sense of spinning. BPPV is a specific diagnosis and each word describes the condition: Benign: it is not life-threatening, even though the symptoms can be very intense and upsetting Paroxysmal (par-ek-siz-muhl): it comes in sudden, short spells Positional: certain head positions or movements can trigger a spell Vertigo: feeling like you are spinning or the world around you is spinning1 What causes BPPV? There are crystals of calcium carbonate that are a normal part of our inner ear and help us with our balance and body motion. These tiny rocklike crystals or “otoconia” (oh-toe-cone-ee-uh) are settled in the center “pouch” of the inner ear. BPPV is caused by the crystals becoming “unglued” from their normal place. They begin to float around and/or get stuck on sensors in the wrong part or wrong canal of the inner ear. The most intense part of your BPPV symptoms have to do with how long it takes the crystals or sensor to settle after you move or change your head or body position. As the crystals move and settle, your brain is getting powerful (false) messages telling you that you are violently spinning when all you may have done is laid down or rolled over in bed. What are the common symptoms Everyone will experience BPPV differently, but there are common symptoms. and how can BPPV affect me? The most common symptoms are distinct triggered spells of vertigo or spinning sensations. You may experience nausea (sometimes vomiting) and/or a severe sense of disorientation in space. You may also feel unstable or like you are losing your balance. These symptoms will be intense for seconds to minutes. You can have lasting feelings of dizziness and instability, but at a lesser level, once the episode has passed. In some people, especially seniors, BPPV can appear as an isolated sense of instability brought on by position change like sitting up, looking up, bending over and reaching. BPPV does not cause constant severe dizziness and is usually triggered by movement. BPPV does not affect your hearing or cause you to faint. The natural course of BPPV is to become less severe over time. People will often report that their very first BPPV spinning episode was the worst and the following episodes were not as bad. 1 Adapted from Woodhouse, S. “Benign Paroxysmal Positional Vertigo (BPPV)”. (n.d., para. 1). Retrieved from https://vestibular.org/understanding-vestibular-disorders/types-vestibular-disorders/benign-paroxysmal-positional-vertigo SOURCE: Bhattacharyya N, Gubbels SP, Schwartz SR, et al; Clinical Practice Guideline: Benign Paroxysmal Positional Vertigo (Update). Otolaryngol Head Neck Surg. 2017; 156(3_suppl):s1-s47. www.entnet.org
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