Eating Disorders Flashcards

1
Q

How common are eating disorders?

A
  • Lifelong prevalence of AN is 0.1-0.9%
  • 75% of AN cases occur before age 22
  • 5-10% of young women attending surgery will have eating disorders
  • 5-10% of adolescent girls will have used pathological weight reducing techniques
  • Approximately 90% of cases present in females.
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2
Q

When is the peak onset for eating disorders?

A

Mid teens to mid twenties

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3
Q

How does university affect eating disorders?

A
  • Increase in “mild to moderate” Eating Disorders
  • Can affect all areas of student life
  • Our patients tell us they wished their school had noticed their eating disorder in time to have treatment before going to university
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4
Q

What screening tool is used?

A

SCOFF questionnaire

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5
Q

What are the components of the SCOFF questionnaire?

A

If patients score 2 or more positive answers, then an eating disorder is likely:

  • Do you make yourself Sick because you feel uncomfortably full?
  • Do you worry you have lost Control over how much you eat?
  • Have you recently lost more than One stone (14 pounds or 6.35 kg) in a three month period?
  • Do you believe yourself to be Fat when others say you are too thin?
  • Would you say that Food dominates your life?
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6
Q

Why is anorexia nervosa thought of as an obsessive weight loss disorder?

A
  • There is obsessive fear of fatness with avoidance of food and other sources of calories and a range of compulsive ‘compensatory’ behaviours when food cannot be avoided
  • In time, these behaviours are the only way to avoid the experience of anxiety AND there are secondary physical and psychological consequences of starvation
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7
Q

What is the ICD10 criteria for anorexia nervosa?

A
  • Restriction of intake to reduce weight
  • Relies on compulsive compensatory behaviours when food cannot be avoided, Self induced vomiting, laxative abuse, excessive exercise, abuse of appetite suppressants / diuretics
  • Considered anorexic if he/she is 15% below ideal body weight/BMI 17.5 or <
  • Fear of weight gain
  • In postmenarchal females, absence of the menstrual cycle or amenorrhoea (greater than 3 cycles)
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8
Q

What is the ICD10 criteria for bulimia nervosa?

A
  • Episodes of binge eating with a sense of loss of control
  • Binge eating is followed by compensatory behaviour of the purging type (self-induced vomiting, laxative abuse, diuretic abuse) or nonpurging type (excessive exercise, fasting, or strict diets).
  • Binges and the resulting compensatory behaviour must occur a minimum of two times per week for three months
  • Dissatisfaction with body shape and weight
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9
Q

What techniques will patients use to avoid calories?

A
  • Diets
  • Not touching food or grease
  • Developing dislikes, pickiness and ‘allergies’
  • Interpreting all symptoms as allergy or indigestion
  • Eating very slow, or at certain times
  • Avoiding parties and social occasions
  • Spoiling or messing with food
  • Refusing to eat more than the person who eats the least
  • Medication abuse
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10
Q

What techniques will patients use to get rid of calories?

A
  • Self-induced vomiting
  • Chewing or spitting out
  • Over exercise
  • Over activity
  • Cooling
  • Blood letting
  • Medication abuse
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11
Q

What behaviours may patients adopt to maintain their disorder?

A
  • Body checking
  • Displaying emancipation to elicit reassuringly shocked attention
  • Cruising pro-ana websites
  • Competing with self and others to attain lower targets
  • Compulsive browsing of gossip magazines ‘thinspiration’
  • Deliberate self harm if ‘rules’ are broken
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12
Q

Why do eating disorders matter?

A
  • Psychological consequences
  • Social consequences
  • Physical consequences
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13
Q

What are the potential psychological consequences of eating disorders?

A
  • Extreme overvaluation of low weight and thin/lean shape
  • Obsessive weight-losing dells like a solution
  • Reduced central coherence and narrowed focus of interest
  • Inability to interpret emotion
  • Depression, anxiety, obsessionality and loss of concentration
  • Failure to cope with life, tolerate distress or feel rewarded or fulfilled
  • Guilt after eating
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14
Q

What are the potential social consequences of eating disorders?

A
  • Withdrawal from friendships
  • Forced to lie and cheat about their consumption
  • Lose interest in sexual relationships
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15
Q

What do people who have recovered from eating disorders value most about their recovery?

A

Recovery of interpersonal life

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16
Q

What are the potential physical consequences of eating disorders?

A
  • Physical damage, poor repair and resistance, heart damage, reduced immunity to infections, anaemia, bone loss, fertility problems
  • Purging behaviours cause neuro-chemical disruption with special damage to brain (seizures) and heart (arrhythmias). Potassium is only one crude measure of the problem
  • Good nutrition needed to allow growth – height, pubertal development, brain growth and development (especially frontal lobe growth), so re-nutrition is more urgent the younger the patient
17
Q

What are the 3Ps of causes?

A
  • Predisposing factors
  • Precipitating factors
  • Perpetuating factors
18
Q

What are the causes of anorexia?

A

Exact cause unknown

  • Genetic predisposition – OCD, anxiety disorders, perfectionism
  • Perinatal factors
  • Life events – and traumas
  • Perpetuating consequences of starvation and of avoidance
19
Q

What are some precipitating factors for eating disorders?

A

Puberty
-Physical effects of hormonal changes on the brain , also psychological response to body changes

Dieting or non-deliberate weight loss

Increased exercise

Stressful life events
-Neglect, abuse, difficult transitions, deaths, family breakups, bullying, stresses such as exams

20
Q

What are some perpetuating factors fro eating disorders?

A

Consequences of starvation syndrome

Delayed gastric emptying
-Sensations of fullness interpreted as fatness

Narrowing focus
-Food becomes most salient stimulus

Obsessionality

  • Phobia of fat
  • Body checking

Families, school, clinic staff
-High EE in family may delay recovery

21
Q

What is the association between anorexia and death?

A
  • Anorexia nervosa has the highest mortality rate of any psychiatric disorder
  • 20% of die prematurely
  • Modern specialist Units are associated with lower mortality rates
  • AN still multiplies risk of premature death at least 10fold
  • Risk of self-harm and suicide
22
Q

What are the possible outcomes of anorexia?

A
  • Death
  • Recovery time varies (can be 6-7 years)
  • Specialist centres report some recoveries after decades
23
Q

What interventions are there for eating disorders?

A
  • Re-feeding
  • CBT-ED
  • IPT or fluoxetine
  • Olanzapine
  • Specialised family work for anorexia nervosa, particularly for younger patients
24
Q

What are the pricniples of approach when managing eating disorders?

A
  • Diagnosis. Not accusation. Climate o sympathetic awareness
  • Patients are obliged by their illness to defend their weight-losing behaviour
  • What the patient says is not the same as what the patient is able to do
  • Patience and urgency
  • Empowerment of parents and all adults working against the illness together
25
Q

How do our human rights influence the management of eating disorders?

A
  • The Human Rights Act (1998) gives us many rights - freedom, confidentiality, home life etc
  • Some Absolute Rights take precedence over the others, even the right to liberty
  • One such is the RIGHT TO LIFE
  • The ScottishMental Health Act gives us responsibility to treat people even in the absence of consent to save life or prevent serious deterioration
26
Q

What are the signs and symptoms of anorexia nervosa?

A
  • Cold intolerance
  • Blue hands and feet
  • Constipation
  • Bloating
  • Delayed puberty
  • Primary or secondary amenorrhea
  • Dry skin
  • Fainting
  • Hypotension
  • Lanugo hair
  • Scalp hair loss
  • Early satiety
  • Weakness, fatigue
  • Short stature
  • Osteopenia & osteoporosis
27
Q

What are the signs and symptoms of bulimia nervosa?

A
  • Mouth sores
  • Pharyngeal trauma
  • Dental caries
  • Heartburn, chest pain
  • Oesophageal rupture
  • Impulsivity including stealing, alcohol abuse, drugs and tobacco
  • Muscle cramps
  • Weakness
  • Bloody diarrhoea
  • Irregular periods
  • Fainting
  • Swollen parotid glands
  • Hypotension
28
Q

What are the feature of binge eating disorder?

A

Similar to bulimia nervosa; absence of purging behaviours.

Ongoing and/or repetitive cycles often include

  • Unusually fast eating, usually alone.
  • Unusually large amounts consumed.
  • Uncomfortably full; often “buzzed” after eating.
  • Embarrassment, shame, guilt, depression.