Update on Eating Disorders for Primary Care Professionals
Transcript of Update on Eating Disorders for Primary Care Professionals
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Update on Eating Disorders for Primary Care Professionals
Murali SekarConsultant Psychiatrist Community Eating Disorders Service HertfordshireLead Consultant PsychiatristPriory Chelmsford
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Contents
+ Diagnosis
+ Aetiology
+ Anorexia Nervosa as an Anxiety Disorder
+ Genetics
+ Investigations and Treatment
+ Updates specific to East of England & Hertfordshire
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Diagnosis – Anorexia Nervosa
restriction of energy intake relative to the requirement intense fear of gaining weight or of becoming
fat body weight/ shape/ image concerns Removed ‘refusal’, BMI cut off and three
months of amenorrhoea
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Diagnosis- Bulimia Nervosa
• Recurrent episodes of binge eating• Binge is defined as eating over a discrete
period ( within 2 hours) accompanied by sense of lack of control
• Recurrent inappropriate compensatory behaviour
• Binges at least once a week• Self evaluation influenced by body weight
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Diagnosis- BED
• Binge Eating Disorder• Recurrent episodes of binge• Characterised binge more. Eating:
- until full- when not hungry- rapidly- when alone - feeling disgusted about the binge
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Diagnosis- ARFID
• Avoidant/ Restrictive Food Intake Disorder• Feeding or eating disturbance manifested by failure to
meet nutritional needs• The disturbance is not explained by
- lack of food- other eating or mental disorders- medical conditions
• Avoidance is due to either colour/ smell/ taste/ texture of the food, mouth feel, swallowing difficulty and/ or pain ( when medical and surgical causes are excluded)
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Diagnosis- Other
• Pica• Rumination Disorder• Other specified feeding or eating disorder
(OSFED) e.g Atypical Anorexia, Purging disorder, Night Eating Syndrome
• Unspecified Feeding or eating disorder
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Aetiology Updates
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Aetiology
• Biological Model- Results form Neuroimaging• Psychodynamic model - ED symptoms are just a
smoke screen• Cognitive and behavioural model – self esteem
linked to body weight• Addiction model – Addiction to endogenous
opioids• Systemic model – Enmeshed family relationship• Complexity model – combination of the above
models and fractal sub model explains patterns
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Aetiology- Biological model update
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New concept- AN as an AD
• A number behavioural responses designed to reduce or avert the anticipated harm such as avoidance, worry, rumination and fight or flight.
• In AN, behaviours like restriction, purging, exercise, calorie counting etc could be seen as behavioural response to reduce or avert the anticipated harm of weight gain, change in body shape or image.
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Do something to get somethingVs
Avoid something to prevent something
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Genetics Update
• Genome-wide association study identifies eight risk loci and implicates metabo-psychiatric origins for anorexia nervosa-Hunna J Watson et al, Nature Genetics: July 2019
• This study revealed first indication for specific pathways, tissues and cell types that may mediate genetic risk of AN from individual genes
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Genetics Update
Gene↓
Protein e.g Catenin↓
Adherens Junction↓
Enhances medium spiny neurons↓
Feeding behaviour (food motivation and reward)
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Genetics Update
“the person with those genes are less likely to have higher body fat percentage, fat mass, BMI, waist and hip circumference and being overweight”• Genes involved in influencing metabolism
related phenotypes contribute to AN• This explains the exceptional difficulty in
maintaining a healthy BMI even after therapeutic renourishment.
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Update on Investigations
Investigations• Blood Tests:
Baseline: FBC, U & Es, LFT, TFT, Vit. B12 and Red blood cell Folate, Magnesium and Phosphate.Follow-up: usually U & E, LFT, Serum Magnesium and Phosphate
• ECG in selected patients• Bone scan (Dexa Scan)
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Update on Treatment
• PsychotherapyNICE updatesCBT-E/ MANTRA
• PharmacotherapyDronabinol, Stimulants
• Neuromodualtion techniquesDBS, rTMS
• MARSIPAN ( MAnagement of Really SIck Patients with Anorexia Nervosa)
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Service development Update
• New Care Model- commissioning de-centralised- community investment- high risk panel, end of life care
• Development in Hertfordshire- Day Unit- Primary care liaison service
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Thank you
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How Priory works with GPs
+ Education Support
+ Private Referral helpline: 0808 231 3231
+ On line referral form: www.priorygroup.com/gps-referrers/make-a-referral
+ GP resources: www.priorygroup.com/gps-referrers
+ Covid support resources for your patients:www.priorygroup.com/blog/coronavirus-information-and-support-videos-on-mental-health-and-addictions