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Background: Severe and enduring anorexia nervosa (SE-AN), is a serious and persistent illness, despite 'state of the art' treatment. Criteria have been theoretically proposed, but not tested, and may not adequately capture illness complexity, which potentially inhibits treatment refinements. The clinical reality of death as an outcome for some people who experience SE-AN (1 in 20) and broadening access to voluntary assisted dying, further complicates the field, which is undeveloped regarding more fundamental concepts such as nosology, treatment, recovery definitions and alternative conceptualisations of SE-AN. The present paper is in response to this and aims to build upon qualitative literature to enhance phenomenological understandings of fatal SE-AN. Method: A published book, being the legacy of a 32-year-old professional artist offers a rich account of a life lived with AN, for 18 years with continuous treatment. A polysemous narrative via the interrelationship between the languages of the artist's words and visual art is translated via interpretative phenomenological analysis (IPA), offering rich insight into the SE-AN experience. Findings: The process of analysis induced three superordinate themes (1) Disappearing Self (2) Dialectical Dilemma (3) Death and Dying: Finding Meaning. Two cross cutting themes traversed these themes: (a) Colour and (b) Shifting Hope, where the former produced a visual representation via the 'SE-AN Kaleidoscope'. Collectively the themes produce a concept of SE-AN, grounded in the data and depicted visually through the artist's paintings. Conclusions: The picture of SE-AN revealed in the analysis extends upon conceptualisations of SE-AN, highlighting key processes which are thus far under explored. These factors are implicated in illness persistence eliciting opportunities for further research testing including diagnostic considerations and treatment directions. In SE-AN, distorted body image extends to a global distortion in the perception of self. Additional criteria for the severe and enduring stages of illness related to (1) self and identity processes (2) measures of 'global impoverishment' across life domains are proposed for consideration in the future testing of putative defining features of SE-AN. Plain English summary: Anorexia Nervosa (AN) is a serious and life-threatening illness. There is a need to understand more about why AN persists in becoming severe and enduring (SE-AN) for some people. One such way to build understanding of a condition is via the stories of those who experience it. This study utilizes a person's unique artistic language to do so. This has the potential to generate new ideas about a condition, especially those that may be beyond words for some people and therefore progress classifications for SE-AN for research and treatment purposes. The artist in this study contributes a unique perspective offering new areas for potential research such as understudied complex psychological processes for example shame, dissociation, 'self', emotional literacy, and anorexia as an identity. Additionally, other factors to be considered in the assessment and classifications of long-term cases of AN as well as an alternative understanding of AN persistence is proposed, beyond the concept of 'body image disturbance'. Alternative treatment approaches such as art therapy are indicated. Note: Contents of this paper may be distressing to people who have lost a loved one to an eating disorder and the following website may provide access to support if any of the content of his paper causes the reader distress: USA - NEDA https://www.nationaleatingdisorders.org/ UK BEAT https://www.beateatingdisorders.org.uk/ Australia Butterfly https://butterfly.org.au/ or Lifeline - which is an international organisation with local websites. [ABSTRACT FROM AUTHOR]

Background: Current evidence-based treatments for adult anorexia nervosa (AN) have limitations, with high attrition, very poor outcomes for 20% of people, and no clearly superior manualised therapy for adults with AN. Specialist Supportive Clinical Management (SSCM) was designed as a control treatment but has evolved as a valid first line treatment. The present paper aims to provide an overview of the evidence base for SSCM and a pedagogical reconceptualization with expansion by theoretical integration (TI). Body: A secondary meta-analysis endorses SSCM as a promising treatment. This paper positions SSCM as a manualised therapy for adult AN with six unique features, namely (1) a philosophy which is person-centred, non-prescriptive, and informed by the person's strengths and values, (2) a focus on the person through inclusion of supportive psychotherapy and problem (clinical management), within target symptoms as defined in relation to AN, (3) a flexible and responsive therapy that could be delivered by a variety of clinicians with experience treating AN (4) a commitment to reversing starvation though a directional approach and a defined yet flexible stance on dietetic intervention (5) a commitment to the therapeutic relationship within all three phases of treatment, and (6) a therapy 'uncluttered' by specific mandates. In addition, this paper positions SSCM as a treatment that may be strengthened by other modalities and may also be adapted to the treatment of other eating disorders (ED), not just AN. The level of therapist sophistication to deliver upon the supportive psychotherapy component is explored and future directions are offered. Conclusion: SSCM is a unique and valid first line treatment for AN and would benefit from further expansion in line with emerging understandings of AN to strengthen it as a treatment. Speculation on aspects of potency would benefit from further testing. The proposed re-conceptualisation of SSCM in the context of its evidence may strengthen it as a treatment overall, position it as adaptable for treatment of other eating disorders and make it more accessible to clinicians. Plain English summary: The few established treatments for anorexia nervosa have limited success rates with high patient dropout. Specialist Supportive Clinical Management (SSCM) is a promising treatment for eating disorders. It would be beneficial to understand SSCM better and how and why it may work, which this paper proposes. SSCM is collaborative and flexible to people's needs, offering them treatment choices and to progress at their own pace. It is less prescriptive than other manualised therapies and therefore could be offered to people more than once, building hopefulness. It requires an experienced psychotherapist to deliver it as SSCM addresses both the symptom of the ED (food and exercise behaviours) as well as life issues causing difficulty to a person (psychotherapy), as presented by the patient. Grounded in a sound scientific basis, SSCM is a promising treatment that would benefit from further development, in line with evolving understandings of AN, and some ideas for this are offered within the paper. [ABSTRACT FROM AUTHOR]