Acupuntura Síndrome de Meniere

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    Hindawi Publishing CorporationEvidence-Based Complementary and Alternative MedicineVolume 2011, Article ID 429102,13pagesdoi:10.1093/ecam/nep047

    Original ArticleExploring the EvidenceBase for Acupuncture in theTreatment ofMenieres SyndromeASystematic Review

    Andrew F. Long,1 Mei Xing,2 KenMorgan,3 andAlisonBrettle4

    1 School of Healthcare, University of Leeds, Leeds, LS2 9UT, UK2 School of Community Health Sciences and Social Care, University of Salford, Salford, UK3Acupuncturist, Bolton, UK4 School of Nursing, University of Salford, Salford, UK

    Correspondence should be addressed to Andrew F. Long,[email protected]

    Received 24 September 2008; Accepted 5 May 2009

    Copyright 2011 Andrew F. Long et al. This is an open access article distributed under the Creative Commons AttributionLicense, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properlycited.

    Menieres syndrome is a long-term, progressive disease that damages the balance and hearing parts of the inner ear. To addressthe paucity of information on which evidence-based treatment decisions should be made, a systematic review of acupuncturefor Menieres syndrome was undertaken. The method used was a systematic review of English and Chinese literature, fromsix databases for randomized, non-randomized and observational studies. All studies were critically appraised and a narrativeapproach to data synthesis was adopted. Twenty-seven studies were included in this review (9 in English and 18 in Chineselanguages): three randomized controlled trials, three non-randomized controlled studies and four pre-test, post-test designs. Allbut one of the studies was conducted in China. The studies covered body acupuncture, ear acupuncture, scalp acupuncture, fluidacupuncture point injection and moxibustion. The studies were of varying quality. The weight of evidence, across all study types,is of beneficial effect from acupuncture, for those in an acute phase or those who have had Menieres syndrome for a number of

    years. The review reinforces the importance of searching for studies from English and Chinese literature. The transferability ofthe findings from China to a Western context needs confirmation. Further research is also needed to clarify questions around theappropriate frequency and number of treatment/courses of acupuncture. The weight of evidence suggests a potential benefit ofacupuncture for persons with Menieres disease, including those in an acute phase and reinforces the importance of searching forpublished studies in the Chinese language.

    1. Introduction

    Menieres syndrome is a long-term, progressive disease that

    damages the balance and hearing parts of the inner ear. Itis most common between the ages of 40 and 50 and rare inchildren and onset after the age of 60. Its incidence is about1 in 1000, equally distributed between men and women andwell documented in Caucasian, African-American and Asianraces [1]. The etiology and treatment of Menieres diseaseis not fully understood. In a literature-based, clinical reviewof the diagnosis and treatment of Menieres disease, Saeed[2] commented that currently, the treatment of Menieresdisease is empirical. As yet, no treatment has prospectivelymodified the clinical course of the condition and therebyprevented the progressive hearing loss. Indeed, Thorp et al.[3] in a critical review of studies of medical and surgical

    approaches queried whether any evidence-based medicineexisted in the treatment of Menieres disease.

    Conventional biomedical treatments include drugs, diet

    and surgery. Drugs often form the first line of treatment.These include: diuretics (to reduce the amount of sodiumin the body); drugs to block symptoms of motion sickness,nausea and vomiting, and anxiety and vertigo; systemicor local corticosteroids to reduce inflammation within theinner ear and to stop any immune reactions; antibiotics; anddrugs to improve blood flow in the inner ear [4]. The mostcommonly recommended dietary treatment is a low sodiumdiet. Patients have sometimes been helped by limitingcertain components of their diet such as sugar, monosodiumglutamate, caffeine and alcohol [4]. Surgical treatment is thelast resort of conventional medicine for Menieres disease,the most controversial [2] and of greatest risk.

    mailto:[email protected]:[email protected]
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    2 Evidence-Based Complementary and Alternative Medicine

    Table1: Inclusion and exclusion criteria.

    Inclusion criteria:

    Study on patients with a diagnosis of Menieres disease

    All types of TCM acupuncture or moxibustion

    Study using acupuncture or moxibustion in addition to otherTCM, for example, herbal medicine

    Studies of any controlled type and case series if the sample sizewas10

    Studies in the English or Chinese languages

    Exclusion criteria:

    Studies with a sample size of

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    Evidence-Based Complementary and Alternative Medicine 3

    Retrieval of hard copies of

    potentially relevant citations

    (n = 35)

    Studies meeting inclusion criteria andcritically appraised

    (n = 27)

    Post-treatmentdesign

    (n = 12)

    Controlledstudies

    (n = 6)

    Case seriesreports

    (n = 8)

    Excluded studies(n = 8)

    English language citations identified through

    electronic databases of MEDLINE, Cochranecontrolled trials register, EMBASE, CINAHL,

    AMED and hand-searching of E-CAM; Chinese

    language citations identified through Chinese

    Database of Science and Technology

    Figure1: Flowchart literature search process.

    The patients had been suffering from Menieres disease forvarious periods of time, ranging from 1 to 24 years. Thirteenof the studies included patients at an acute phase, within 110 days of an acute attack. Three studies [9,15,30] explicitlyfocused on the effects of acupuncture for acute symptomrelief. Sample sizes varied from 15 [11] to 286 [33], and 5had a sample size of less than 30 [18,19,25,26,30]. The six

    controlled studies had total sample sizes ranging from 36 to189 in the acupuncture arm. Nine of the studies had 50 orfewer participants.

    The majority of studies employed a graded outcomemeasurement approach, differentiating three to four categ-ories: cured, outstandingly effective, effective/improvedor not effective. Cured had the common meaning ofdizziness and other symptoms having disappeared or allsymptoms disappeared, able to return to work/resumenormal activities and no recurrence within a 1 or 2 yearperiod (depending on the studys follow-up time). Out-standingly effective had a similar meaning but with recur-rence of symptoms occasionally, by, for example, 6 months.

    Effective/improved related to relief of symptoms. Partic-ular symptoms were often mentioned as part of the achievedoutcomes, in particular dizziness and vertigo.

    3.2. Nature of Acupuncture. The studies covered five typesof acupuncture: body acupuncture; ear acupuncture; scalpacupuncture; fluid acupuncture point injection; and mox-

    ibustion. All such types are classifiable as falling withinthe TCM style, ensuring the de-qi sensation. Half ofthe studies involved an individualized TCM prescriptionapproach to the treatment and half used a pre-set pre-scription, itself based on TCM principles and approachesto treating particular symptoms commonly experienced bypersons with Menieres disease, in particular, symptomsof dizziness, vertigo, nausea and vomiting. While none ofstudies mentioned the background of the acupuncturist,acupuncturists in China are all qualified medical doctors andat least 4 years training is required to work in a hospital.

    No single, uniform number of courses or duration oftreatment within each course was apparent. In two controlled

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    4 Evidence-Based Complementary and Alternative Medicine

    studies [10,14], once daily acupuncture was undertaken for10 days; in another [13], no indication of the number oftreatments or how often the treatment was given; in yetanother [30], patients continued with the treatment untilsymptom relief. Across the studies, a treatment once a dayfor a course of up to 10 sessions with the possibility of a

    second (or more) course was common.

    3.3. Quality of the Evidence. A number of weaknesses wereevident in the studies. First, as only six of the studieshad a comparison group and four others also includedpre-treatment measurement, any observed improved out-comes could have arisen because of other factors, includingsymptom remission. Secondly, only eight of the studieseither included audiometric testing [9,19,21] or recruitedMenieres disease patients according to established criteriafor Menieres [10,18,23,24,26]. Only two studies includedaudiometric testing as part of their outcome measurement[9,27]. Thirdly, most of the Chinese language studies did not

    provide detail on the inclusion/exclusion criteria. Fourthly,very limited detail was provided on the choice of studyparticipants or setting of the studies. Fifthly, the lengthof follow-up (and thus final outcome measurement point)varied; eight studies had a follow-up time of 2 years and ninehad 1 year, while for seven no or little detail was provided.

    3.4. Evidence of Effectiveness. The weight of evidence, acrossall study types, is one of the beneficial effects from fivetypes of acupuncturebody, ear or scalp acupuncture, fluidacupuncture point injection, or moxibustion (Table 2). Thethree randomized controlled trials [911] demonstrate astatistically significant benefit of body or scalp acupunc-

    ture against Western medicine and vitamins, with a meandifference in the total effectiveness percentage of 14% infavor of acupuncture (P

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    Evidence-Based Complementary and Alternative Medicine 7

    Table2:Continued.

    Study,study

    typeand

    country

    Treatment,samplesizea

    ndfollow-uptime

    Confirmeddiagnosis

    andtimewith

    Meni`eresdiseas

    e

    Appropriateness

    oftreatment

    Keyfindings

    Summaryevaluativecomm

    entsandoverall

    quality

    ScalpacupunctureplusherbalmedicineOnce

    dailyacupuncturefor7days;simpleherbaltea

    (tocontinueteafor1year)

    MDacutestage

    (hospitalized

    followingacute

    attack)

    TCMindividualized

    diagnosisand

    treatment,with

    herbalremedy

    adjusted

    Totaleffectivenessrate:97%

    18%outstandingeffect

    Strengthsinclude:clarityo

    veroutcome

    measurement,TCMdiagnosisandtreatment

    andlengthoffollow-up.

    Dongand

    Zhou[17]

    China

    n=

    180

    70%cured

    Follow-up:1year

    Upto10years

    8%improved

    Overallqualityjudgment:Good

    MoxibustionatDu-20

    Patientswith

    clinicallyconfirmed

    MD

    TCMindividualized

    diagnosiswithset

    acupoint

    Totaleffectivenessrate:100%

    Useofstandarddiagnosiscriteriaandoutcome

    measurementcriteriaforM

    D,appropriate

    acupointwithTCMrationale.(Note:treatment

    alsoincludedadviceondietandemotion)

    Overallqualityjudgment:Good

    SunandLi

    [18]China

    Twiceadayfor15days

    75%cured

    n=

    20

    Upto2years

    25%outstandinglyimproved

    Follow-up:1year

    (Du-20)

    Post-testdesign Electro-acupuncture,acupunctureand

    moxibustion

    MDpatientswh

    ohad

    auditoryvertigo

    symptoms

    Onesetpointfor

    acupuncture,

    anotherfor

    moxibustion;

    otherpoints

    addedaccording

    toTCMdiagnosis

    Totaleffectivenessrate:100%

    Targetsonlycaseswithaud

    itoryvertigo

    syndrome.Detaileddescriptionofother

    Meni`eressymptomsofcases;fullexplanation

    ofpotentialroleofacupun

    ctureintreating

    Meni`eres.

    DaiandLiang

    [19]

    China

    Onetreatmentdailyfor

    up6days(30min

    application)

    70%cured

    n=

    23

    18%excellent

    Follow-up:1year

    Upto17years

    Acupuncture

    MDqueryove

    r

    criteria

    Individualized

    treatment

    followingTCM

    principles

    Totaleffectivenessrate:90%

    Strengthsinclude:appropr

    iateTCMprinciples.

    Butlackofdetailovertreatmentduration,

    choiceofparticipantsanddiagnosticcriteria

    forMD.

    10sessionsfor1month

    22%cured

    Liu[20]Chinan=

    51

    Durationno

    information

    69%improved

    Follow-up:2year

    Overallqualityjudgment:Poor

    MoxibustionatDu-20(over2hours),forupto

    threesessions32

    ConfirmedMD

    (Otol.Dept)

    Du-20isagood

    experientialpoint

    fordizziness.

    Totaleffectivenessrate:100%

    100%symptom

    relief(8

    fromonesessio

    n,10from

    two,and14afterthree).

    Strengthsinclude:MDcon

    firmedby

    OtolaryngologyDepartment,useofstandard

    treatmentduration,useof

    anappropriate

    (Du-20)treatmentpointandlengthof

    follow-up.

    Chao[21]

    China

    n=

    32

    Notdiagnosed

    accordingto

    TCMtheory.

    Weaknessesinclude:unclearsamplingcriteria,

    solefocusononeMDsym

    ptom(dizziness)

    andlackofcontrolgroup.

    Follow-up:2years

    average9years

    Note:

    moxibustiononlyNorecurrenceafter2years.

    Overallqualityjudgment:Fair

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    8 Evidence-Based Complementary and Alternative Medicine

    Table2:Continued.

    Study,study

    typeand

    country

    Treatment,samplesizea

    ndfollow-uptime

    Confirmeddiagnosis

    andtimewith

    Meni`eresdiseas

    e

    Appropriateness

    oftreatment

    Keyfindings

    Summaryevaluativecomm

    entsandoverall

    quality

    Electro-acupuncture

    PatientswithMD

    Treatment

    accordingto

    TCMpattern

    diagnosis

    Totaleffectivenessrate:74%

    Shortarticle;inconsequen

    ce,limiteddetailson

    methods,exceptonacupuncturetreatment.

    Tian[22]

    China

    Twotothreecoursesof10sessionsdaily,with2

    daysrestbetweencourse

    (1020min

    application)

    FiftyhadMDfo

    r15

    years,22for>5years

    50%markedimprovement

    n=

    72

    24%improved

    Overallqualityjudgment:Fair

    Follow-upperiod:1year

    Treatmentmor

    eeffectivein

    casesofshorter

    duration

    AcupointinjectionatDu-20

    PatientswithMD

    accordingtobo

    ok

    ofcommondise

    ases

    Set,singlepoint

    used,withTCM

    rationale

    Totaleffectivenessrate:100%

    Cleardiagnosticcriteriawithdetailed

    treatmentprocedure.Butdurationof

    follow-upisnotstatedand

    lackofclarityover

    outcomemeasurement(ca

    usesofdizziness

    disappeared).

    Bo[23]China

    Onceadayfor10days,1

    daybreak,thenanother

    courseoftreatment(330sessionsintotal)

    75%cured

    n=

    88

    Overallqualityjudgment:Fair

    Follow-up:notstated

    Upto3years

    23%improved

    Wangand

    Chen[24]

    China

    Acupuncturepointsinje

    ctionwithDansheng

    liquidononesideatonetimeplusscalp

    acupuncture

    PatientswithMD

    Setprescription

    butbasedon

    goodTCM

    treatment

    principles

    Totaleffectivenessrate:92%

    Combinedtraditionaland

    scalpneedlingplus

    pointsinjectionseemsapotentiallygood

    treatmentmethod,andbasedonTCM

    principles.WhilediagnosisisbasedonTCM

    principles,treatmentisnotindividualized.

    Gooddetailontreatmentprocedures.

    Acupuncturewithinjectiononceaday,with

    scalpacupunctureevery

    otherday,for10days.

    5-daybreak,secondcourseoftreatment

    Upto14years

    62%cured

    n=

    50

    30%outstandinglyimprovedOverallqualityjudgment:Fair

    Follow-up:2years

    Bodyacupuncture

    PatientswithMD

    Treatment

    accordingto

    TCMpattern

    diagnosis

    Totaleffectivenessrate:94%

    Studyreportisfromanabstract,translated

    fromtheoriginalChinesepaper.Briefdetailon

    methodsisprovided,with

    extensivedetailon

    needlingandTCMrationa

    le.

    Zhang[25]

    China

    Coursesof10sessionsw

    itha2-dayrestbetween

    (30minapplication)

    72%cured

    n=

    18

    Upto6years.

    Follow-upperiod:2years

    22%markedeff

    ect

    Overallqualityjudgment:Fair

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    10 Evidence-Based Complementary and Alternative Medicine

    Table2:Continued.

    Study,study

    typeand

    country

    Treatment,samplesizea

    ndfollow-uptime

    Confirmeddiagnosis

    andtimewith

    Meni`eresdiseas

    e

    Appropriateness

    oftreatment

    Keyfindings

    Summaryevaluativecomm

    entsandoverall

    quality

    Acupuncture

    MDqueryove

    r

    criteria

    Treatment

    followingTCM

    principles,but

    onlyfortheone

    symptomof

    dizziness

    Totaleffectivenessrate:99%

    Strengthsinclude:treatmentbasedon

    appropriateTCMprinciples.Butlackofdetail

    overchoiceofparticipants

    ordiagnostic

    criteriaforMD,treatment

    notindividualized,

    nostandardcourseoftreatment,andunclear

    lengthoffollow-up

    SongandYi

    [31]China

    Onceadayuntilallsymptomsdisappear(mean

    n=

    5;range2to>10)

    Upto15years

    91%curedovershortterm

    n=

    152

    8%improved

    Overallqualityjudgment:Poor

    Follow-up:unclear

    Acupuncture

    PatientswithMDat

    anacutestage

    NoTCM

    diagnosis

    differentiationor

    individualized

    treatment

    Totaleffectivenessrate:98%

    FollowingappropriateTCMprinciplesfor

    treatingtwosymptoms(dizzinessand

    vomiting)ofMD,butlimiteddetailandno

    explicitfollow-upmention

    ed.

    Zhu[32]

    China

    n=

    51

    Upto6years

    64%cured

    Follow-up:notindicated

    32%outstandingeffect

    Overallqualityjudgment:Poor

    Acupuncture

    PatientswithMD

    Appropriate

    acupunctureat

    singlepoint.No

    TCMpattern

    differentiation

    Totaleffectivenessrate:90%

    Thestudyreportsonalarg

    egroupofpatients;

    thetreatmentprovidedisanintegrated

    treatmentforMD,butthereisalackofdetail

    overthenumberofcoursesgiven.

    Zhangand

    Shang[33]

    China

    Onceadayfor3days(asonecourse)

    57%cured

    n=

    286

    Upto24years

    28%outstandingeffect

    Follow-up:1year

    Overallqualityjudgment:Fair

    Bodyacupunctureandm

    oxibustion

    PatientswithMD

    Treatment

    accordingto

    TCMpattern

    diagnosis

    Totaleffectivenessrate:100%

    Shortreportoncasestreatedoveranumberof

    years.ArguesthatMeni`ere

    ssyndromebelongs

    tothecategoryofdizzinessinTCM.

    Strengthsincludeoneyear

    follow-upandclear

    rationalefortreatment.

    Lu[34]

    China

    Onetreatmentperday(30minapplication);

    214dailytreatmentsgiven(meanof7.4)

    Twenty-twopatients

    hadMD10years;

    eightfor>10

    87%cured

    n=

    30

    13%effective

    Follow-up:1year

    30%symptom

    freeafter1

    year;47%re-occurrence

    within6month

    s

    Overallqualityjudgment:Fair

    AcupunctureplusmoxibustionatDu-20

    MDqueryove

    r

    criteria

    TCMpattern

    differentiation

    andtreatment

    Totaleffectivenessrate:100%

    Reportingoncasestreated

    since1988forTCM

    diagnosisofdizziness.

    Wang[35]

    China

    Onceadayfor7daysas

    onecourseoftreatment

    n=

    30

    Upto10years

    97%cured

    Overallqualityjudgment:Fair

    Follow-up:2years

    AsteriskindicatedstudieslocatedfromEnglishlanguagesearch.RCT:randomizedcontrolledtrial;CT:controlledtrial;MD:Meni`eresDisease;I:Intervention;C:Comparison/Control.

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    Evidence-Based Complementary and Alternative Medicine 11

    disease would likely be biomedical, acupuncture may besought only when the condition becomes chronic. There arealso differences in education and training of, and access to,acupuncturists (traditional TCM trained practitioners orWestern acupuncture [41], thus the recognized importanceof reporting studies using the STRICTA framework [8].

    This strongly suggests the need for a controlled trial ofacupuncture, for both persons in an acute phase and thosewho have had Menieres disease for a number of years.

    Any such study needs to be appropriately designed. Asthere is no definitive, demonstrated bio-medical curativeapproach for Menieres disease, choice of comparison groupis not straightforward. A placebo design would seem bothinappropriate and ethically problematic, as it is highlyimprobable that potential study participants will not betaking some medication or other approach to enable themto cope. While arguing for the need for greater and morerigorous evidence, Thorp et al. [3] make a similar commentin the context of conventional medicine. In Europe, anappropriate comparison might be drug treatment. In China,an appropriate contrast might be a (Western) drug approachor different forms of TCM approaches (e.g., types ofacupuncture and/or herbal medicine). Indeed, the formerform of comparison (acupuncture versus a drug or herbalapproach) was used in four of the included controlledstudies[912], and the latter (different forms of acupunctureor Chinese herbal medicine) in two others [13, 14]. It isimportant to note that choice of comparison group shouldbe culturally determined.

    Whatever choice is made, it is important that fullmethodological details are provided in the research report,utilizing the STRICTA recommendations [8] both as a guideto reporting but also study design. The review suggests thepotential of exploring treatment once a day for a courseof up to 10 sessions with the possibility of a second (ormore) course. Such research should measure both the short-and longer-term symptom effect, based upon patient reportsof symptom benefit and (time before any) recurrence andextent of severity/symptom relief at any recurrence, generalhealth and well-being effects and a potential greater resolveto cope with the illness.

    There are some limitations to this review. First, the Chi-nese literature search accessed only one database and limitedhand searching. More studies might be generated from awider search. Secondly, it is notable that the studies fromChina report positive effects of acupuncture. This may be due

    to publication bias, [42] or be a true effect, demonstratingthat frequent and a large number of treatment sessions,evident in the Chinese studies, leads to better outcomes [37].In this regard it is interesting to note one of the findings froma systematic review of clinical trials on acupuncture in theJapanese literature[43]; studies undertaken pre-1990 tendedto focus on the appropriate choice of acupuncture technique,whereas post-1990 the focus tended to be on evaluationof acupuncture efficacy. This finding has some resonancewithin the Chinese literature in this review, especially withinthe case-series studies and their presentation and the depthof explanation about technique. Thirdly, inclusion of non-randomized and uncontrolled studies in the review could

    be argued to be problematic [44]. Such studies were usedhere as a means to support, or otherwise, findings frommore powerful studies. In addition, such studies providedadditional information on the maintenance of beneficialeffects. Fourthly, in a recent report relating specifically toCochrane systematic reviews of TCM, where only 5 of the

    28 described RCTs could be authenticated as RCTs, Wu et al.[45] argue for the need for review authorsto verify with studyauthors for claims that their RCTs were in fact randomized.This was not undertaken in this study. Fifthly, no attemptis made to draw together any of the TCM explanationsindicated in the included papers about the mechanismsthat might underpin acupuncture effecting the symptoms ofMenieres disease or other factors which may be associatedwith such symptoms.

    5. Conclusion

    The aim of this systematic review was to locate andcritically appraise evidence for acupuncture as a treatmentfor Menieres disease, drawing from both English andChinese language literature. Despite the range in the qualityof the located evidence, the overall conclusion is of thepotential benefit of acupuncture for persons with Menieresdisease, including those in an acute phase. The review alsodemonstrates the importance of searching for studies in theChinese language for such a therapy as acupuncture, givenits lengthy historical tradition within Chinese medicine. Asall but one of the studies took place within China, furtherresearch is needed in a Western health care context and toexamine the frequency and number of treatment or coursesof acupuncture.

    Appendix

    SearchStrategy forMEDLINEvia OVID interface

    (1) meniere$.mp.

    (2) (endolymphatic adj hydrops).mp.

    (3) exp Endolymphatic Hydrops/

    (4) exp Meniere Disease/

    (5) 1 or 2 or 3 or 4

    (6) exp Acupuncture Therapy/

    (7) (acupuncture or electro? acupuncture or auricu-lotherapy or (auricular adj needles) or (needling adjtherapy) or (electric adj needling)).mp.

    (8) exp Medicine, Chinese Traditional/

    (9) 6 or 7 or 8

    (10) 9 and 5

    Key:

    mp =title, original title, abstract, name of substance word,subject heading word

    exp =explode subject heading

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    12 Evidence-Based Complementary and Alternative Medicine

    / =subject heading (MESH) search

    $ =truncation symbol

    ? =wildcard symbol

    adj =adjacent to

    FundingResearch Development Fund of the University of Salford.

    Acknowledgements

    The authors gratefully acknowledge the comments of TonyBennett, as expert patient.

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