29 Juli 2013

Essay. Globalisation of mentalhealth. RossWhite.


There are huge inequalities in the availability of resources to support mentalhealthneeds across the globe. It is estimated that greater than ninetypercent of global mentalhealth resources are located in highincomecountries (WHO, 2005). This is all the more alarming when we consider that around eightypercent of the world’s population live in low- and middle-incomecountries (LMIC: Saxena et al., 2006). In countries inAfrica, latin America, and south/southeastAsia under twopercent (and often less than onepercent) of expenditure on health tends to go to services for psychiatric conditions (compared to over tenpercent in theUSA) (Kleinman, 2009). And there is a gathering mentalhealth storm: it is projected that by2030, depression will be the second biggest cause of disease burden across the globe (Mathers & Loncar, 2006), second only toHIV/AIDS.
  When four out of five people inLMIC who need services for mental, neurological and/or substance-use disorders do not receive them (WHO, 2008), we have a clear "treatmentgap", the difference between the levels of mentalhealthservices required by LMICpopulations and what is actually available on the ground. Prominent clinicians and academics, as well as international organisations such as theWorldHealthOrganization (WHO, 2008, 2010), have called for the "scaling up" of services for mentalhealth inLMIC. "Scaling up" involves increasing the number of people receiving services, increasing the range of services offered, ensuring these services are evidence-based, using models of service delivery that have been found to be effective in a similar contexts, and sustaining these services through effective policy, implementation and financing (Eaton et al., 2011). Yet in light of the limited resources available to support mentalhealth, it is pertinent to ask whether it makes sense to try to export systems of service delivery that have been developed in highcountries toLMIC. Will this venture be sustainable in the longer term? More importantly, will these systems actually deliver added value for the increase in budgetary expenditure that will be required?
  The seductive allure of biologicalPsychiatry
  In highcountries, mentalhealth services tend to gravitate aroundPsychiatry, the branch ofMedicine that is concerned with the study and treatment of mentaillness, emotional disturbance, and abnormal behaviour. BiologicalPsychiatry is an approach toPsychiatry that aims to understand mentalillness in terms of the biological function of the nervoussystem.
  The rise of biologicalPsychiatry promised great things. Biological explanations of mentalillness permeated the public consciousness, and the hunt was on to discover the magical compounds that could redress the chemical imbalances that were purported to cause mentaillness. Various different medications have been developed and the marketed. In the past fortyyears, the sales of psychotropic medications have increased dramatically. Yet despite the exponential rise in sales of these medications, the evidence for biological causes for mentaillnesses such as depression and schizophrenia remain fairly weak (Nestler et al., 2002; Stahl, 2000). The continued absence of definitive evidence to support biological processes that are causal in mentaillness has led to the suggestion that biologicalPsychiatry is ‘a practice in search of a science’ (Wyatt & Midkiff, 2006). Despite these concerns, biologicalPsychiatry continues to exert a strong influence on the delivery of mentalhealthservices in highincomecountries such as theUK and America [US].
  The seductive allure of the rationale underlying biologicalPsychiatry is plain to see. If mentaillnesses were to have universal biological causes, then standard treatments could be readily applied across the world irrespective of local differences and associated cultural differences. If evidencebased practices lead to positive outcomes in highincomecountries, then similar positive outcomes will be observed in LMIC. Right?
  This is where the picture gets a bit more complicated. Before we can answer this question, we need to be clear on what we mean by: (1) ‘evidencebased practices’ and (2) ‘positive outcomes’. What is considered to be ‘evidencebased practice’ can serve powerful economic and political interests (Kirmayer & Minas, 2000). In 2007, US citizens alone spent twentyfivebillionspounds on antidepressants and antipsychotics (Whitaker, 2010). All this in spite of the fact that claims about drugeffectiveness are at times overstated, and that pharmaceutical companies have been found to employ questionable research methodologies (Glenmullen, 2002; Valenstein, 1998; Whitaker, 2010). Professor DavidHealy (Psychiatrist, University of Cardiff) has stated that a ‘large number of clinical trials done are not reported if the results don’t suit the companies’ sponsoring (the) study’ (tinyurl.com/dxlh55w). The evidencebase is heavily skewed towards research conducted in highincomecountries. Since producing hard evidence depends on the costly standards of psychiatric epidemiology and randomised clinical trials, it can be difficult for clinicians or researchers inLMIC to contribute to the accumulation of knowledge (Kirmayer, 2006). The lack of mentalhealth related research being conducted inLMIC countries is evident in the finding that over ninetypercent of papers published in a threeyear period in sixleading psychiatric journals came from euroamerican countries (Patel & Sumathipala, 2001). An inductive, ["]bottomup approach["] to research emphasising the importance of local conceptualisations of mentalhealth difficulties and focusing on local priorities in different LMIC is required.
  Even if the research capacity inLMIC can be increased, difficulties remain. The issue of what constitutes ‘positive outcomes’ in relation to mentaillness has plagued clinical practice and research for manyyears. There is currently no accepted consensus on what constitutes positive outcome for individuals with mentaillness. Traditionally, Psychiatry has been concerned with eradicating symptoms of
mentaillness. However, it is important to appreciate that clinical symptoms do not improve in parallel with social or functional aspects of service users’s presentation (Liberman et al., 2002). Functional outcome relates to variables such as cognitive impairment, residential independence, vocational outcomes, and/or social functions (Harvey & Bellack, 2009). In this sense, using symptomatic remission as an indicator of recovery can yield better rates of good outcome than using indicators of functional recovery (Robinson et al., 2005).
  Another important consideration relating to outcome in mentalillness relates to the extent to which particular outcomes are culturally sensitive and inclusive (Vaillant, 2012). Marked disparities have been highlighted between ethnicminoritygroups and whitepeople in outcome, serviceusage and servicesatisfaction (Sashidharan, 2001). The lack of culturally inclusive understandings of positive outcome in mentalillness is compounded by the underrepresentation of black- and minority-ethnicgroups in mentalhealthrelatedresearch. This has led to some concluding that there is a lack of adequate evidence supporting the use of ‘evidencebased’ psychological therapies with individuals from black- and minority-ethnicpopulations (Hall, 2001). Considering these issues, it seems that ["]the jury["] is in no position to deliver a ["]verdict["] on whether ‘evidencebased’ practices for mentaillness developed in highincomecountries deliver positive outcomes inLMIC.
  Diagnosis and culture
  Despite the question marks that remain about the causes of mentaillness, the veracity of the evidence base, what constitutes good outcome, and how inclusive mentalhealth services are to cultural diversity within the population, the Psychiatryheavyperspective has a powerful say in how mentalhealth difficulties are understood inLMIC. Dissenting voices have questioned the wisdom of this approach. One particular source of dissention relates to the process of psychiatric diagnosis. The international classification systems for diagnosing mentaillnesses (such as depression and schizophrenia) have been criticised for making unwarranted assumptions that these diagnostic categories have the same meaning when carried over to a new cultural context (Kleinman, 1977, 1987). This issue has potentially been obscured by the fact that the panels that finalise these diagnostic categories have been criticised for being unrepresentative of the global population. Of the 47 psychiatrists who contributed to the initial draft of themostrecent WorldHealthOrganization diagnosticsystem (ICD-10: WHO, 1992), only two were fromAfrica, and none of the fourteenfieldtrialcentres were located in subSaharanAfrica. Inevitably this led to the omission of conditions that had been described for many years inAfrica (Patel & Winston, 1994), such as ‘brain fag syndrome’. (This was initially a term used almost exclusively in westAfrica, generally manifesting as vague somatic symptoms, depression and difficulty concentrating, often in male students.)
  ICD10 does at least acknowledge that there are exceptions to the apparent universality of psychiatric diagnoses by including what are called culturespecific disorders. One such example is koro, a form of genital retraction anxiety which presents in parts ofAsia. Prior toICD10, symptompresentations such as koro tended to be subsumed into existing diagnoses such as delusional disorder (Crozier, 2011). But the inclusion of culturespecific disorders only serves to perpetuate a skewed view of the impact of culture on mentalhealth; ‘cultural’ explanations seem to be reserved for nonWestern patients/populations that show koro(-like) syndromes, and not for diagnoses that are more prevalent in highincomecountries (e.g. anorexianervosa). Indeed, it has been suggested that many psychiatric conditions described in these diagnostic manuals (such as anorexianervosa, chronicfatiguesyndrome) might actually be largely culturebound to euroamerican populations (Kleinman, 2000; Lopez & Guernaccia, 2000). Because people living in "western" countries tend to see the world through a cultural lens that has been tinted by psychiatric conceptualisations of mentaillness, they are blind to how specific to "western" countries these conceptualisations actually are.
  TransculturalPsychiatry
  Culture has been defined as "a set of institutional settings, formal and informal practices, explicit and tacit rules, ways of making sense and presenting one’s experience in forms that will influence others" (Kirmayer, 2006, p.133). Interest in the potential interplay between culture and mentaillness first arose in colonialtimes as psychiatrists and anthropologists surveyed the phenomenology and prevalence of mentaillnesses in newly colonised parts of the world. This led to the development of a new discipline called transculturalPsychiatry, a branch ofPsychiatry that is concerned with the cultural and ethnic context of mentaillness.
  In its early incarnation, transculturalPsychiatry was blighted by the racist attitudes that prevailed at that time about the notion of naive "native" minds. However, over time, this began to change as people began to understand that Psychiatry was itself a cultural construct. In1977, ArthurKleinman proposed a "new crossculturalPsychiatry" that promised a revitalised tradition that gave due respect to cultural difference and did not export psychiatric theories that were themselves culturebound. Transcultural (or crosscultural)Psychiatry is now understood to be concerned with the ways in which a medicalsymptom, diagnosis or practice reflects social, cultural, and Moral concerns (Kirmayer, 2006).
  Tensions exist in transculturalPsychiatry. Clinicians, who are motivated to produce good outcomes for serviceusers, may work from the premise that there is crosscultural portability of psychiatric or psychological theory and practice. Although well intended, this approach can be met with disapproval from socialscientists who are focused on advancing medicalAnthropology as a scholarly discipline. However, it is becoming clear that in this era of rapid globalisation, mentalhealthpractitioners, social scientists and anthropologists need to come together and engage in constructive dialogue aimed at developing crosscultural understanding about how best to meet the mentalhealth needs of people across the globe.
  The need for interdisciplinary working in promoting improved understanding about the interplay between culture and mentaillness has been demonstrated by a growing body of evidence indicating that exporting Western conceptualisations of mentalhealth difficulties intoLMIC can have a detrimental impact on local populations. EthanWatters’s book CrazyLikeUs cites examples from different parts of the world (including China, Japan, Peru, SriLanka, and Tanzania) where the introduction of psychiatric conceptualisations of mentaillness has potentially changed how distress is manifested, or introduced barriers to recovery (e.g. the emergence of expressed emotion in the families of individuals with psychosis inTanzania). Watters (2010) cites the work ofGaithriFernando who has written extensively about the aftermath of the tsunami that struckSriLanka in2006. Fernando claims that "western" conceptualisations of trauma and the diagnostic criteria forPTSD were not appropriate for a srilankan context. Fernando found that srilankan people were much more likely to report physical symptoms following distressing events. This was attributed to the observation that the notion of a mindbodydisconnect is less pronounced inSriLanka. Sri lankans were also more likely to see the negative consequences of the tsunami in terms of the impact it had on social relationships. Because sri lankan people tended not to report problematic reactions relating to internal emotional states (e.g. fear or anxiety), the rates ofPTSD following the tsunami were considerably lower than had been anticipated. Fernando concluded that western techniques for conceptualising, assessing and treating the distress that people were experiencing were inadequate.
  Watters also explores the way in which understanding about depression has changed inJapan over thelasttwentyyears. This sobering tale allowsWatters to explore how the interplay between cultural factors and notions of mentaillness can be manipulated for financial gain. In the1960s, HubertTellenbach had introduced the notion of a personality type called TypusMelancholicus. This idea heavily influenced psychiatric thinking in Japan. Typus melancholicus had substantial congruence with a respected personality type inJapan; "those who were serious, diligent and thoughtful and expressed great concern for the welfare of others dotdotdot prone to feeling overwhelming sadness when cultural upheaval disordered their lives and threatened the welfare of others" (Watters, 2010; p.228). Although at the end of thetwentiethcentury there had been a psychiatric term in the japaneseLanguage for depression (utsubyô), this tended to relate to a rare and very debilitating condition. Prior to2000, there had been no real market for prescribing antidepressant medications in Japan. However, shifting public perception about TypusMelancholicus closer toward the western conceptualisation of depression would have huge implications for antidepressant prescribing inJapan. Watters (2010) claims that GlaxoSmithKline’s enthusiasm to build a market for its new antidepressantmedication inJapan dovetailed conveniently with a GlaxoSmithKline sponsored "international consensus group" of experts on culturalPsychiatry discussing crosscultural variations in depression (Ballenger et al., 2001) concluding that depression was vastly underestimated inJapan. Depression is now conceptualised inJapan as affecting individuals (particularly men) who are too hardworking and have overinternalised the japaneseEthic of productivity and corporateloyalty. In the last few years, the market for antidepressants in Japan has grown exponentially. An important consequence of this "aggressive pharmaceuticalisation", is that psychological and social treatments for depression are being ditched (Kitanaka, 2011).
  Globalisation of mentalhealth
  There is a growing willingness to explore ways of addressing inequalities in the provision made for mentaillness across the globe, but translating this willingness into effective action is fraught with potential danger. We must guard against assumptions that indigenous concepts of mentalhealth difficulties inLMIC and strategies used in these contexts to deal with it are based on ignorance (Summerfield, 2008). Despite the apparent sophistication of-Laws, -policies, -services and -treatments for mentaillness in highincomecountries, outcomes for individuals with mentalhealth problems may not actually be any better than inLMIC. Research has failed to conclusively show that outcome for complex mentaillnesses (such as psychosis) in highincomecountries are superior to outcomes inLMIC (where populations may not had access to medicationbased treatments) (Alem et al., 2009; Cohen et al., 2008; Hopper et al., 2007). The lack of academic and political engagement with alternative nonwestern perspectives means that "western" narratives about "mentaillness" continue to dominate over local understanding (Timimi, 2010), yet we in highincomecountries have much to learn about mentalhealthprovision, particularly in relation to promoting inclusion of black- and ethnic-minoritymembers of the population.
  To conclude, I would like to come back to the title. Rather than the globalisation of mentalillness, perhaps what we should be aiming for is the globalisation of mentalhealth. This is an immensely more inclusive aspiration. By promoting global mentalhealth, there is the potential for clinicians, academics, service users and policy makers from across the world to work together with a shared purpose. By exchanging knowledge, LMIC can benefit from hard lessons learned in highincomecountries, and highincomecountries can look afresh at how mentalhealth difficulties are understood and treated. It will be important for clinicians and academics working in highincomecountries to critically reflect on their own practice and question the accepted wisdom about mentalhealthprovision.
  To assist with this knowledge exchange, a new MSCGlobalMentalHealthprogramme has been launched at theUniversityOfGlasgow. Global mentalhealth has been defined as the "area of study, research and practice that places a priority on improving mentalhealth and achieving equity in mentalhealth for all people worldwide" (Patel & Prince, 2010). The programme seeks to develop leaders in mentalhealth who can design, implement and evaluate sustainable services, policies and treatments to promote mentalhealth in culturally appropriate ways across the globe. Global mentalhealth is an emergent area of study. Momentum is building. Although the challenges are both numerous and complex, the prize is a worthy one. The cost of not acting can be counted in the everincreasing number of people whose lives are being affected by mentalhealthproblems across the globe. [Compromise cowardic at thelastparagraph.]

Keine Kommentare: