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1.
Eur Eat Disord Rev ; 30(3): 237-249, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35150473

RESUMEN

OBJECTIVE: Repetitive transcranial magnetic stimulation (rTMS) is a promising emerging treatment for anorexia nervosa (AN). However, to date, patients' views and experiences of this treatment have not been fully explored. To assess these, we integrated a qualitative study into a feasibility randomised controlled trial of rTMS in individuals with severe enduring AN. METHOD: Twenty-nine (of 34) trial participants contributed to this study. Semi-structured interviews were conducted 3-months following the completion of rTMS treatment (4-months post-randomisation), prior to unblinding. Transcripts were analysed using content analysis. RESULTS: rTMS was deemed an acceptable but time-consuming treatment. Many emphasised how their lives had changed to some extent during, but mainly after treatment by making them more positive, open-minded, flexible and willing to try new things in relation to their AN and other aspects of their lives. CONCLUSIONS: These qualitative data will be valuable in shaping participant information, recruitment and planning of future large-scale trials of rTMS in AN. TRIAL REGISTRATION: ISRCTN14329415, registered 23rd July 2015, https://www.isrctn.com/ISRCTN14329415.


Asunto(s)
Anorexia Nerviosa , Estimulación Magnética Transcraneal , Anorexia Nerviosa/terapia , Encéfalo , Humanos , Investigación Cualitativa , Resultado del Tratamiento
2.
Int J Eat Disord ; 53(8): 1326-1336, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-32309882

RESUMEN

OBJECTIVE: Individuals with anorexia nervosa (AN) pursue low-fat, low-calorie diets even when in a state of emaciation. These maladaptive food choices may involve fronto-limbic circuitry associated with cognitive control, habit, and reward. We assessed whether high-frequency repetitive transcranial magnetic stimulation (rTMS) to the left dorsolateral prefrontal cortex (DLPFC) influenced food-related choice behavior in patients with severe, enduring (SE)-AN. METHOD: Thirty-four females with SE-AN completed a Food Choice Task before and after 20 sessions of real or sham rTMS treatment and at a 4-month follow-up. During the task, participants rated high- and low-fat food items for healthiness and tastiness and then made a series of choices between a neutral-rated food and high- and low-fat foods. Outcomes included the proportion of high-fat and self-controlled choices made. A comparison group of 30 healthy women completed the task at baseline only. RESULTS: Baseline data were consistent with previous findings: relative to healthy controls, SE-AN participants showed a preference for low-fat foods and exercised self-control on a greater proportion of trials. There was no significant effect of rTMS treatment nor time on food choices related to fat content. However, among SE-AN participants who received real rTMS, there was a decrease in self-controlled food choices at post-treatment, relative to baseline. Specifically, there was an increase in the selection of tasty-unhealthy foods. DISCUSSION: In SE-AN, rTMS may promote more flexibility in relation to food choice. This may result from neuroplastic changes in the DLPFC and/or in associated brain areas.


Asunto(s)
Anorexia Nerviosa/terapia , Preferencias Alimentarias/psicología , Estimulación Magnética Transcraneal/métodos , Adulto , Anorexia Nerviosa/psicología , Femenino , Humanos , Autocontrol
3.
Eur Eat Disord Rev ; 28(6): 773-781, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32706502

RESUMEN

OBJECTIVE: This study assessed longer-term outcomes from a randomised controlled feasibility trial of 20 sessions of real versus sham high-frequency repetitive transcranial magnetic stimulation (rTMS) to the left dorsolateral prefrontal cortex in adults with severe, enduring anorexia nervosa (SE-AN). METHODS: Thirty participants who completed the original study protocol were invited to take part in an open follow-up (18-months post-randomisation), assessing body mass index (BMI), eating disorder (ED) symptoms and other psychopathology. RESULTS: Twenty-four participants (12 each originally allocated to real/sham) completed the 18-month follow-up. Ten of 12 participants who originally received sham treatment had real rTMS at some stage during the follow-up. A medium between-group effect size was seen for BMI change from baseline to 18-months, favouring those originally allocated to real rTMS. In this group at 18-months, five participants were weight recovered (BMI ≥18.5 kg/m2 ), compared with one participant in the original sham group. Both groups showed further improvement in ED symptoms during the follow-up. Effects on mood were largely maintained at follow-up, with catch-up effects in the original sham group. CONCLUSIONS: Findings suggest that rTMS treatment effects on mood are durable and that BMI and ED symptom improvements need time to emerge. Large-scale trials are needed.


Asunto(s)
Anorexia Nerviosa/diagnóstico por imagen , Estimulación Magnética Transcraneal/métodos , Adulto , Estudios de Factibilidad , Femenino , Estudios de Seguimiento , Humanos , Masculino , Resultado del Tratamiento , Adulto Joven
4.
Behav Cogn Psychother ; 48(4): 419-431, 2020 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-32178754

RESUMEN

BACKGROUND: Despite their use in clinical practice, there is little evidence to support the use of therapist written goodbye letters as therapeutic tools. However, preliminary evidence suggests that goodbye letters may have benefits in the treatment of anorexia nervosa (AN). AIMS: This study aimed to examine whether therapist written goodbye letters were associated with improvements in body mass index (BMI) and eating disorder symptomology in patients with AN after treatment. METHOD: Participants were adults with AN (n = 41) who received The Maudsley Model of Anorexia Treatment for Adults (MANTRA) in a clinical trial evaluating two AN out-patient treatments. As part of MANTRA, therapists wrote goodbye letters to patients. A rating scheme was developed to rate letters for structure and quality. Linear regression analyses were used to examine associations between goodbye letter scores and outcomes after treatment. RESULTS: Higher quality letters and letters that adopted a more affirming stance were associated with greater improvements in BMI at 12 months. Neither the overall quality nor the style of goodbye letters were associated with improvements in BMI at 24 months or reductions in eating disorder symptomology at either 12 or 24 months. CONCLUSIONS: The results highlight the potential importance of paying attention to the overall quality of therapist written goodbye letters in the treatment of AN, and adopting an affirming stance.


Asunto(s)
Anorexia Nerviosa , Trastornos de Alimentación y de la Ingestión de Alimentos , Adulto , Atención Ambulatoria , Anorexia Nerviosa/terapia , Humanos , Pacientes Ambulatorios , Psicoterapia
5.
Eur Eat Disord Rev ; 26(2): 129-140, 2018 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-29460477

RESUMEN

This pilot study assesses the impact of FREED (First Episode Rapid Early Intervention for Eating Disorders [ED]), a novel transdiagnostic service for emerging adults with recent ED onset, on clinical outcomes. Data were collected from 56 patients and 19 carers for 12 months following enrolment. FREED patients showed significant improvements in ED and other symptoms across time. Carers also showed psychological improvements. For FREED anorexia nervosa (AN) patients, body mass index (BMI) at initial clinical assessment was similar to that of comparable patients (audit cohort) seen in our service before (16.4 vs 16.1 kg/m2 ). By start of treatment, because of their shorter wait, FREED-AN had gained weight whereas audit patients had lost (16.7 vs 15.8 kg/m2 ). This difference continued throughout treatment, and at 12 months, nearly 60% FREED-AN patients returned to a BMI of 18.5 or greater. FREED shows promise as a service model for emerging adults with EDs.


Asunto(s)
Anorexia Nerviosa/psicología , Bulimia Nerviosa/psicología , Cuidadores/psicología , Evaluación de Programas y Proyectos de Salud/métodos , Adulto , Anorexia Nerviosa/terapia , Índice de Masa Corporal , Bulimia Nerviosa/terapia , Femenino , Humanos , Masculino , Proyectos Piloto
6.
Int J Eat Disord ; 49(12): 1077-1081, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27301653

RESUMEN

OBJECTIVE: There is evidence that people with eating disorders display altered intertemporal choice behavior (the degree of preference for immediate rewards over delayed rewards). Compared to healthy controls (HC), individuals with anorexia nervosa and binge-eating disorder show decreased and increased rates of temporal discounting (TD; the devaluation of delayed rewards), respectively. This is the first study to investigate TD in people with bulimia nervosa (BN). METHOD: Thirty-nine individuals with BN (2 men) and 53 HC (9 men) completed a hypothetical monetary TD task. Over 80 binary choices, participants chose whether they would prefer to receive a smaller amount of money available immediately or a larger amount available in 3 months. Self-reported ability to delay gratification (the behavioral opposite of TD) was also measured. RESULTS: Individuals with BN showed greater TD (i.e., a preference for smaller-sooner rewards) and a decreased self-reported capacity to delay gratification relative to HC. Experimental groups did not differ in age, gender ratio, or BMI. DISCUSSION: Increased rates of TD may contribute to some of the core symptoms of BN that appear to involve making choices between immediate and delayed rewards (i.e., binge-eating and compensatory behaviors). Altered intertemporal choice behavior could therefore be a relevant target for intervention in this patient group. © 2016 Wiley Periodicals, Inc. (Int J Eat Disord 2016; 49:1077-1081).


Asunto(s)
Bulimia Nerviosa/psicología , Descuento por Demora/fisiología , Adulto , Análisis de Varianza , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Inventario de Personalidad , Pruebas Psicológicas , Ensayos Clínicos Controlados Aleatorios como Asunto , Recompensa , Autoinforme
7.
Int J Eat Disord ; 49(9): 874-82, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27257748

RESUMEN

OBJECTIVE: Case formulation is a core component of many psychotherapies and formulation letters may provide an opportunity to enhance the therapeutic alliance and improve treatment outcomes. This study aimed to determine if formulation letters predict treatment satisfaction, session attendance, and symptom reductions in anorexia nervosa (AN). It was hypothesized that higher quality formulation letters would predict greater treatment satisfaction, a greater number of attended sessions, and greater improvement in eating disorder symptoms. METHOD: Patients were adult outpatients with AN (n = 46) who received Maudsley Anorexia Nervosa Treatment for Adults (MANTRA) in the context of a clinical trial. A Case Formulation Rating Scheme was used to rate letters for adherence to the MANTRA model and use of a collaborative, reflective, affirming stance. Analyses included linear regression and mixed models. RESULTS: Formulation letters that paid attention to the development of the AN predicted greater treatment acceptability ratings (p = 0.002). More reflective and respectful letters predicted greater reductions in Eating Disorder Examination scores (p = 0.003). DISCUSSION: Results highlight the potential significance of a particular style of written formulation as part of treatment for AN. Future research should examine applicability to other psychiatric disorders. © 2016 Wiley Periodicals, Inc.(Int J Eat Disord 2016; 49:874-882).


Asunto(s)
Anorexia Nerviosa/terapia , Psicoterapia/métodos , Adolescente , Adulto , Atención Ambulatoria/métodos , Anorexia Nerviosa/psicología , Índice de Masa Corporal , Comunicación , Femenino , Humanos , Masculino , Escritura Médica , Persona de Mediana Edad , Motivación , Pacientes Ambulatorios , Satisfacción del Paciente , Encuestas y Cuestionarios , Resultado del Tratamiento , Adulto Joven
8.
Int J Eat Disord ; 49(8): 793-800, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-27061709

RESUMEN

OBJECTIVE: This study reports follow-up data from a multicenter randomized controlled trial (n = 142) comparing the Maudsley Model of Anorexia Nervosa Treatment for Adults (MANTRA) with Specialist Supportive Clinical Management (SSCM) in outpatients with broadly defined anorexia nervosa (AN). At 12 months postrandomization, all patients had statistically significant improvements in body mass index (BMI), eating disorder (ED) symptomatology and other outcomes with no differences between groups. MANTRA was more acceptable to patients. The present study assessed whether gains were maintained at 24 months postrandomization. METHODS: Follow-up data at 24 months were obtained from 73.2% of participants. Outcome measures included BMI, ED symptomatology, distress, impairment, and additional service utilization during the study period. Outcomes were analyzed using linear mixed models. RESULTS: There were few differences between groups. In both treatment groups, improvements in BMI, ED symptomatology, distress levels, and clinical impairment were maintained or increased further. Estimated mean BMI change from baseline to 24 months was 2.16 kg/m(2) for SSCM and 2.25 kg/m(2) for MANTRA (effect sizes of 1.75 and 1.83, respectively). Most participants (83%) did not require any additional intensive treatments (e.g., hospitalization). Two SSCM patients became overweight through binge-eating. DISCUSSION: Both treatments have value as outpatient interventions for patients with AN. © 2016 Crown copyright. International Journal of Eating Disorders. (Int J Eat Disord 2016; 49:793-800).


Asunto(s)
Anorexia Nerviosa/terapia , Psicoterapia/métodos , Adulto , Atención Ambulatoria/métodos , Anorexia Nerviosa/psicología , Centros de Día/estadística & datos numéricos , Femenino , Estudios de Seguimiento , Hospitalización , Humanos , Masculino , Pacientes Ambulatorios , Resultado del Tratamiento
9.
Eur Eat Disord Rev ; 24(2): 157-63, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26537308

RESUMEN

OBJECTIVES: This case series examined the therapeutic potential of repetitive transcranial magnetic stimulation in five women with enduring anorexia nervosa. METHODS: Participants received ~20 sessions of neuronavigated high-frequency repetitive transcranial magnetic stimulation to the left dorsolateral prefrontal cortex. Body mass index, eating disorder (ED) symptoms and mood were assessed pre-treatment and post-treatment, at 6-month and 12-month follow-up (FU). Qualitative feedback regarding the intervention was obtained from participants and carers. RESULTS: From pre-treatment to post-treatment, ED and affective symptoms improved significantly, and body mass index remained stable. Further improvements in ED symptoms/mood were seen at 6-month FU with 3/5 and 2/5 participants deemed 'recovered' on the Eating Disorders Examination Questionnaire and Depression, Anxiety and Stress Scale, respectively. However, most participants had lost some weight, and therapeutic effects on psychopathology had waned by 12-month FU. Qualitative feedback regarding the intervention was encouraging. DISCUSSION: Repetitive transcranial magnetic stimulation was well tolerated, and preliminary evidence is provided for its therapeutic potential in anorexia nervosa.


Asunto(s)
Anorexia Nerviosa/terapia , Estimulación Magnética Transcraneal , Adulto , Anorexia Nerviosa/psicología , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Investigación Cualitativa , Resultado del Tratamiento , Aumento de Peso , Adulto Joven
10.
Appetite ; 78: 55-62, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-24656950

RESUMEN

Bulimia nervosa, binge-eating disorder, and some forms of obesity are characterised by compulsive overeating that is often precipitated by food craving. Transcranial direct current stimulation (tDCS) has been used to suppress food cravings, but there is insufficient evidence to support its application in clinical practice. Furthermore, the potential moderating role of impulsivity has not been considered. This study used a randomised within-subjects crossover design to examine whether a 20-minute session of sham-controlled bilateral tDCS to the dorsolateral prefrontal cortex (anode right/cathode left) would transiently modify food cravings and temporal discounting (TD; a measure of choice impulsivity) in 17 healthy women with frequent food cravings. Whether the effects of tDCS on food craving were moderated by individual differences in TD behaviour was also explored. Participants were exposed to food and a film of people eating, and food cravings and TD were assessed before and after active and sham stimulation. Craving for sweet but not savoury foods was reduced following real tDCS. Participants that exhibited more reflective choice behaviour were more susceptible to the anti-craving effects of tDCS than those that displayed more impulsive choice behaviour. No differences were seen in TD or food consumption after real versus sham tDCS. These findings support the efficacy of tDCS in temporarily lowering food cravings and identify the moderating role of TD behaviour.


Asunto(s)
Conducta de Elección , Ansia , Descuento por Demora , Preferencias Alimentarias/psicología , Conducta Impulsiva , Corteza Prefrontal , Estimulación Transcraneal de Corriente Directa , Adulto , Estudios Cruzados , Señales (Psicología) , Ingestión de Alimentos/psicología , Femenino , Humanos , Persona de Mediana Edad , Gusto , Adulto Joven
11.
Eur Eat Disord Rev ; 21(6): 436-55, 2013 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-24155246

RESUMEN

BACKGROUND: Eating disorders (ED) are chronic and sometimes deadly illnesses. Existing treatments have limited proven efficacy, especially in the case of adults with anorexia nervosa (AN). Emerging neural models of ED provide a rationale for more targeted, brain-directed interventions. AIMS: This systematic review has examined the effects of neuromodulation techniques on eating behaviours and body weight and assessed their potential for therapeutic use in ED. METHOD: All articles in PubMed, PsychInfo and Web of Knowledge were considered and screened against a priori inclusion/exclusion criteria. The effects of repetitive transcranial magnetic stimulation (rTMS), transcranial direct current stimulation, vagus nerve stimulation (VNS) and deep brain stimulation (DBS) were examined across studies in ED samples, other psychiatric and neurological disorders, and animal models. RESULTS: Sixty studies were identified. There is evidence for ED symptom reduction following rTMS and DBS in both AN and bulimia nervosa. Findings from studies of other psychiatric and neurological disorders and from animal studies demonstrate that increases in food intake and body weight can be achieved following DBS and that VNS has potential value as a means of controlling eating and inducing weight loss. CONCLUSIONS: Neuromodulation tools have potential for reducing ED symptomatology and related behaviours, and for altering food intake and body weight. In response to such findings, and emerging neural models of ED, treatment approaches are highly unlikely to remain 'brainless'. More research is required to evaluate the potential of neuromodulation procedures for improving long-term outcomes in ED.


Asunto(s)
Peso Corporal , Estimulación Encefálica Profunda , Ingestión de Alimentos , Trastornos de Alimentación y de la Ingestión de Alimentos/terapia , Estimulación Magnética Transcraneal , Estimulación del Nervio Vago , Animales , Anorexia Nerviosa/terapia , Trastorno por Atracón/terapia , Bulimia Nerviosa/terapia , Modelos Animales de Enfermedad , Ingestión de Alimentos/fisiología , Conducta Alimentaria/fisiología , Trastornos de Alimentación y de la Ingestión de Alimentos/fisiopatología , Humanos , Obesidad/terapia
12.
Eur Eat Disord Rev ; 21(6): 500-6, 2013 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-24155247

RESUMEN

BACKGROUND: Advances in the treatment of anorexia nervosa (AN) are most likely to arise from targeted, brain-directed treatments, such as repetitive transcranial magnetic stimulation (rTMS). We describe findings from two individuals with treatment-resistant AN who received 19-20 sessions of neuronavigated, high frequency rTMS, applied to the left dorsolateral prefrontal cortex. METHOD: Within-session measures assessed changes pre-rTMS, post-rTMS in subjective eating disorder (ED) experiences. Weight, ED symptoms and mood were assessed pre-treatment, post-treatment and at 1 month follow-up. RESULTS: In both cases, there was improvement in ED symptomatology and mood after 19-20 sessions of neuronavigated rTMS, and these changes persisted or continued to improve at follow-up. Within sessions, Patient A demonstrated a consistent reduction in subjective ED experiences, and Patient B a reduction in some ED related experiences. CONCLUSIONS: These findings suggest that rTMS has potential as an adjunct to the treatment of AN and deserves further study.


Asunto(s)
Anorexia Nerviosa/terapia , Estimulación Magnética Transcraneal , Afecto , Anorexia Nerviosa/fisiopatología , Femenino , Humanos , Persona de Mediana Edad , Corteza Prefrontal/fisiopatología , Resultado del Tratamiento , Adulto Joven
14.
J Eat Disord ; 9(1): 16, 2021 Jan 28.
Artículo en Inglés | MEDLINE | ID: mdl-33509288

RESUMEN

BACKGROUND: Repetitive transcranial magnetic stimulation (rTMS) is a promising treatment option for people with severe, enduring anorexia nervosa (SE-AN). As depression is often comorbid with AN, antidepressant medication is commonly prescribed to this patient group. Concurrent antidepressant medications may affect the rTMS treatment response. Therefore, in a secondary analysis of data from a feasibility trial, we explored the effect of antidepressant medication on responses to rTMS in people with SE-AN. METHODS: Twenty-six participants with SE-AN received 20 sessions (over 4 weeks) of neuronavigated high-frequency real rTMS to the left dorsolateral prefrontal cortex. Eating disorder (ED) and general psychopathology symptoms were assessed at baseline, post-treatment and at a 4-month follow-up. RESULTS: Participants taking antidepressants (n = 16) for the duration of the rTMS treatment had a greater reduction in ED symptoms at the 4-month follow-up, compared to those not taking antidepressants (n = 10). Antidepressant status was not however associated with significant changes in mood outcomes. CONCLUSIONS: In people with SE-AN receiving rTMS treatment, preliminary findings suggest a potential synergistic effect of antidepressant medication in reducing ED symptomatology. There was however no associated reduction in affective symptoms i.e., the effect does not seem to be related to changes in mood. The sample in this exploratory study was small and heterogenous. However, the preliminary results provide a basis for hypothesis generation for future studies.

15.
Neuropsychiatr ; 35(2): 84-91, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33231833

RESUMEN

BACKGROUND: Neuromodulation techniques, such as repetitive transcranial magnetic stimulation (rTMS), transcranial direct current stimulation (tDCS) and deep brain stimulation (DBS), are emerging as promising treatment options in eating disorders (EDs). To date, the views of ED clinicians regarding these interventions have not been explored. METHODS: Eighteen clinicians were recruited from a specialist ED Service in London, UK. Following a short educational presentation on rTMS, tDCS and DBS, they completed a semi-structured interview to explore their views on the use of these treatment options in EDs. RESULTS: Clinician knowledge of neuromodulation techniques was low. They raised safety and ethical (particularly capacity to consent) concerns mainly with regard to DBS. Neuromodulation treatments were considered most appropriate as an adjunct to psychotherapy and for patients with severe, enduring illness (who had completed previous psychological treatments). CONCLUSIONS: Improving clinicians' knowledge and understanding of neuromodulation is fundamental for bridging the gap between research and clinical work. This is especially so given the predominance of psychological theory and practice in the treatment of EDs.


Asunto(s)
Estimulación Encefálica Profunda , Trastornos de Alimentación y de la Ingestión de Alimentos , Estimulación Transcraneal de Corriente Directa , Trastornos de Alimentación y de la Ingestión de Alimentos/terapia , Humanos , Estimulación Magnética Transcraneal
16.
J Eat Disord ; 9(1): 84, 2021 Jul 09.
Artículo en Inglés | MEDLINE | ID: mdl-34243816

RESUMEN

BACKGROUND: Repetitive transcranial magnetic stimulation (rTMS) is a novel treatment option for people with severe enduring anorexia nervosa (SE-AN), but associated neurobiological changes are poorly understood. This study investigated the effect of rTMS treatment on regional cerebral blood flow (CBF) and whether any observed changes in CBF are associated with changes in clinical outcomes in people with SE-AN. METHODS: As part of a randomised sham-controlled feasibility trial of 20 sessions of high-frequency rTMS to the left dorsolateral prefrontal cortex, 26 of 34 trial participants completed arterial spin labelling (ASL) functional magnetic resonance imaging (fMRI) to quantify regional and global resting state CBF before (pre-randomisation baseline) and after real or sham treatment (1-month post-randomisation). A group of healthy females (n = 30) were recruited for baseline comparison. Clinical outcomes, including BMI, and depression and anxiety symptoms, were assessed at baseline, 1-, 4-, and 18-months post-randomisation. RESULTS: No group differences in regional CBF were identified between the SE-AN and healthy comparison participants. A significant treatment-by-time interaction in a medial temporal lobe cluster with the maximal peak in the right amygdala was identified, reflecting a greater reduction in amygdala CBF following real rTMS compared to sham. Participants with the greatest rTMS-related reduction in amygdala CBF (i.e., between baseline and 1-month post-randomisation) showed the greatest sustained weight gain at 18-months post-randomisation. Higher baseline CBF in the insula predicted greater weight gain between baseline and 1-month post-randomisation and between baseline and 4-months post-randomisation. CONCLUSIONS: This exploratory pilot study identified rTMS treatment related changes in CBF in adults with SE-AN and these were associated with changes in weight. Our preliminary findings also suggest that CBF (as measured by ASL fMRI) may be a marker of rTMS treatment response in this patient group. Future rTMS studies in AN should employ longitudinal neuroimaging to further explore the neurobiological changes related to rTMS treatment. TRIAL REGISTRATION: ISRCTN14329415 , registered 23rd July 2015.


Repetitive transcranial magnetic stimulation (rTMS) is a novel treatment option for people with severe enduring anorexia nervosa (SE-AN). However, little is known about the neurobiological effects of this treatment. This study explored the effect of rTMS treatment on regional cerebral blood flow (CBF) and whether any observed changes in CBF are associated with changes in clinical outcomes in people with SE-AN. Participants completed arterial spin labelling (ASL) functional magnetic resonance imaging (fMRI) before and after receiving 20 sessions (over 4 weeks) of real or sham rTMS. We found a greater reduction in amygdala CBF following real rTMS compared to sham rTMS. Participants with the greatest rTMS-related reduction in amygdala CBF showed the greatest sustained weight gain at an 18-month follow-up. Higher baseline CBF in the insula predicted greater weight gain during treatment and at a 4-month follow-up. This suggests that CBF (as measured by ASL fMRI) may be a marker of rTMS treatment response in this patient group. Future rTMS studies in AN should use longitudinal neuroimaging to further explore the neurobiological changes related to rTMS treatment.

17.
BJPsych Open ; 6(3): e37, 2020 Apr 06.
Artículo en Inglés | MEDLINE | ID: mdl-32248870

RESUMEN

BACKGROUND: Eating disorder services are often separated into child and adolescent eating disorder services (CAEDSs) and adult eating disorder services (AEDSs). Most patients in CAEDSs present with first-episode illness of short duration, which with appropriate treatment, have a good prognosis. However, some individuals receive further treatment as adults. Little is known about service utilisation in adulthood following childhood/adolescent treatment of an eating disorder. AIMS: This study aims (a) to estimate the proportion of patients in a CAEDS who use mental health services as young adults, (b) to delineate service utilisation following treatment in CAEDSs and (c) to identify factors in CAEDSs that predict service utilisation in young adulthood. METHOD: A consecutive cohort of 322 patients (aged 13-17 years) seen in a CAEDS in the UK over a 5-year period were included in this audit. Data regarding their use of UK-wide adult mental health services as young adults (i.e. when aged 18-25) were extracted from local and national hospital records. RESULTS: A total of 68.3% of CAEDS patients received no mental health treatment as young adults. Although 13% of people seen in a CAEDS had brief eating disorder treatment as young adults, 10% received longer/or more intensive eating disorder treatment. Overall, 10.8% transitioned directly to an AEDS and 7.6% were re-referred following discharge from CAEDS. In our sample, older age and increased use of CAEDSs predicted increased eating disorder treatment in young adulthood. CONCLUSIONS: Our results indicate that most people seen in CAEDSs do not receive further mental health treatment as young adults. Several features in CAEDSs distinguish mental health service utilisation in young adulthood, which were identified clinically and could be targeted during treatment.

18.
Eur Psychiatry ; 63(1): e60, 2020 05 26.
Artículo en Inglés | MEDLINE | ID: mdl-32450945

RESUMEN

BACKGROUND: Eating disorders (EDs) are serious mental illnesses that can be life-threatening. Stage of illness models and early intervention strategies could be informed by a better understanding of symptomatology that precedes the onset of an ED. This review aims to explore which symptoms (both ED and other psychiatric disorder-related) exist prior to the onset of an ED and whether there any prospective associations between these symptomatologies. METHODS: A systematic literature review was conducted in MEDLINE, Embase, and PsycINFO for large, longitudinal, prospective studies in nonclinical cohorts of children/adolescents that report symptoms prior to the onset of an ED. A quality assessment of included studies was conducted using the Newcastle-Ottawa Quality Assessment Scale. RESULTS: A total of 22 studies were included, and over half were assessed to be of good quality. Studies identified the presence of a broad range of ED and other psychiatric disorder-related symptoms prior to ED onset. Possible prospective associations were identified, including early eating and feeding difficulties in childhood, to ED-related symptoms (e.g., dieting and body dissatisfaction) and other psychiatric disorder-related symptoms (e.g., anxiety and depression) in childhood/early adolescence, progressing to severe symptomatology (e.g., extreme weight control behaviors and self-harm) in mid-adolescence/emerging adulthood. CONCLUSION: The trajectory of symptoms identified to precede and possibly predict onset of an ED may inform early intervention strategies within the community. Suggestions for further research are provided to establish these findings and the clinical implications of these discussed, in order to inform how best to target prodromal stages of EDs.


Asunto(s)
Desarrollo del Adolescente , Trastornos de Ansiedad/epidemiología , Trastornos de Alimentación y de la Ingestión de Alimentos/epidemiología , Adolescente , Conducta del Adolescente/psicología , Adulto , Niño , Comorbilidad , Progresión de la Enfermedad , Femenino , Humanos , Estudios Longitudinales , Masculino , Estudios Prospectivos , Factores de Riesgo
19.
Early Interv Psychiatry ; 14(1): 137-141, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-31617325

RESUMEN

AIM: We describe 2-year outcomes of a novel first episode early intervention service for young adults with a recent onset eating disorder (FREED). Outcomes in FREED patients with anorexia nervosa (AN) were compared with those from patients previously seen in our service [treatment as usual (TAU) cohort], matched for age, illness duration and diagnosis. METHODS: Electronic case records of FREED-AN (n = 22) and TAU-AN patients (n = 35) were examined to identify service utilisation and clinical outcomes over 24 months. RESULTS: Outpatient service utilisation was similar in both groups, but FREED-AN patients needed intensive (in- or day-patient) treatment less frequently than TAU-AN (23% vs 32%). FREED-AN patients had a higher estimated mean body mass index [19.2 kg/m2 ; 95% CI (18.21, 20.16)] than TAU patients [18.0 kg/m2 ; 95% CI (16.90, 19.15)] at last contact. CONCLUSION: Introduction of FREED led to a more complete recovery in patients with AN at 24 months.


Asunto(s)
Anorexia Nerviosa/diagnóstico , Trastornos de Alimentación y de la Ingestión de Alimentos/diagnóstico , Atención Ambulatoria , Anorexia Nerviosa/terapia , Índice de Masa Corporal , Centros de Día , Intervención Educativa Precoz , Trastornos de Alimentación y de la Ingestión de Alimentos/terapia , Femenino , Estudios de Seguimiento , Necesidades y Demandas de Servicios de Salud , Humanos , Admisión del Paciente , Adulto Joven
20.
Front Psychiatry ; 10: 978, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-32038324

RESUMEN

The tendency to act on immediate pleasure-driven desires, due to the devaluation of future rewards [a process known as temporal discounting (TD)], has been associated with substance use disorders (SUD) and with conditions characterised by compulsive overeating. The study involved a large inclusive participant sample (i.e., no diagnostic or exclusion criteria were applied). They were recruited/assessed online and we investigated whether TD was related to compulsive overeating and associated problems. Participants [N = 432, (48 males)] completed an online survey, which included a hypothetical monetary TD task, the Eating Disorder Examination-Questionnaire (EDE-Q), the Yale Food Addiction Scale (YFAS) and the Depression Anxiety and Stress Scales (DASS). TD correlated with frequency of compulsive overeating and compensatory behaviours, with eating disorder psychopathology, with scores on the YFAS, and with body mass index (BMI). As our study shows that elevated rates of TD are associated with a range of behaviours/measures, we propose that it is more likely that elevated TD rates are a predisposing factor rather than a consequence of the behaviour, i.e., elevated rates of TD contribute to pathological eating-related behaviours; however, a bi-directional explanation is also possible. Future research should investigate whether interventions aimed at reducing TD have clinical potential for treating problematic eating behaviours.

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