Eating DOs Flashcards
What eating disorders did we discuss in class?
- Anorexia nervosa
- Bulimia nervosa
- Avoidant/Restrictive food intake disorder (used to be ED NOS)
- Disordered eating
- Binge eating disorder
what is the typical age of onset for eating disorders?
bimodal 14 and 18yo
What is the gender ratio for eating disorders?
Female to male ratio 3:1
Lifetime prevalence of anorexia nervosa
0.9% females
03% males
What is the lifetime prevalence of bulimia nervosa?
- 5% females
- 5% males
What is the lifetime prevalence of ED-NOS?
~5% all adolescents
What is the lifetime prevalence of binge eating disorder?
3.5% females
2% males
Is there a familial pattern to eating disorders?
Yes. More common in sisters and mothers of those with disorder
Mortality rate of eating disorders
5-15%
What are the 3 most common chronic illnesses in adolescent girls?
- Obesity
- Asthma
- Eating Disorders
Childhood risk factors for eating disorders
History of food refusal
Weight and body image concerns develop prior to puberty
may be a strong genetic component (hard to tease out)
What are some history “red flags” for an eating disorder?
- unexplained weight loss / failure to gain expected weight
- Change in eating pattern: progressive changefrom high caloric density foods to lower; vegetarianism/veganism, desier to “eat healthier”, frank restriction; focus on food or rituals
- Change in activity pattern, exercise (meltdown if can’t do)
- Lack of concern by teen/child about emaciation
What is an “atypical” presentation of anorexia / eating disorder?
- often in males
- often in context of stressful family or life event
- often a co-morbid psych dx (anxiety, ocd, depression)
- Less likely to have body image disturbance- believe they’re thin
- Weight loss is unexpected - “eating healthy”
Why is an “atypical” presentation of eating disorder often delayed and why is this dangerous?
- Seem to be eating healthy / are not worried about their body
- Seen as a “passing phase”
- Dangerous because:
- interruption of normal pubertal processes may lead to shorter stature
- Changes in brain volumes (MRI)
- bone accretion
What are some physical symptom red flags of an eating DO?
- symptoms of malnutrition
- wt loss / inability to maintain normal wt
- amenorrhea - virtually 100%
- constipation
- abdominal pain, bloating (may even perceive feeling of food as pain)
- fatigue
- cold intolerance
- light-headedness
- signs of cognitive blunting
What are some presenting physical signs of AN?
- Weight loss (any significant or unexpected weight loss in an adolescent is cause for concern)
- amenorrhea (loss of menses for >3 months in a postmenarcheal female), pubertal delay
- lack of growth or poor growth
- changes in body hair (lanugo hair, hair loss or thinning)
- skin changes (dry skin, hyperkeratotic areas, yellow or orange discoloration, pitting or ridging of the nails)
- recurrent fractures
- hypothermia (temperature as low as 35°C)
- bradycardia
- hypotension
- acrocyanosis
- peripheral edema
- systolic murmur sometimes associated with mitral valve prolapse.
Differential Diagnoses for an ED
- Medical Conditions
- GI - Inflammatory bowel disease, malabsorption
- Endocrine
- DM, Addison’s, thyroid disease (st have vomiting, wt loss – no one believes it’s not on purpose)
- Malignancies
- CNS lesions
- tumors, intracranial infections, increased ICP,
- Miscellaneous - early pregnancy, sarcoidosis, cystic fibrosis
- Chronic infections (TB, HIV – see fair number of young ppl either acquired at birth or sexual activity)
- Psychiatric Disorders
- Mood disorders, OCD, Body dysmorphic disorder (focus on one part of body – sth wrong with it), Substance use disorders, Psychosis
Esp anxiety and depression
What are the cardinal features of anorexia nervosa?
- Self-induced weight loss
- Psychological disturbance
- Distorted body image
- Fear of obesity
- Secondary physiological abnormalities
- Result of malnutrition
Which features of anorexia were removed in the transition from DSM IV to DSM V
requirement to be above 85th percentile
amenorrhea (absence of menstruation for at least 3 consecutive cycles)
- important because this allows to catch more at risk ados!*
- Also - amenorrhea not apply to male / prepuscent / contraception*
AN: Subtype restricting vs binge/purge according to DSM-V
- Restricting: During the last 3 months, the individual has not engaged in recurrent episodes of binge-eating or purging behavior
- Binge/Purge: During the last 3 months, the individual has engaged in recurrent episodes of binge-eating or purging behavior
DSM-V criteria for bulimia nervosa
- Recurrent episodes of binge eating
- Recurrent inappropriate compensatory behaviors to prevent wt gain
- The binge eating and compensatory behaviors both occur, on avg, at least once per week for 3 mths (was twice)
- self eval is unduly influenced by body shape and wt
- This disturbance does not occur exclusively during episodes of AN
Subtypes of BN (DSMV)
used to be purging and non-purging, but removed for DSM V