Disturbances of behaviour and body physiology Flashcards
Anorexia Nervosa ICD10
- low bodyweight of 15% or more below the expected norm and BMI of 17.5 or less (only if aged over 16)
- self-induced weight loss, avoidance of foods, vomiting, purging, excessive exercise, use of appetite suppressants
- body image distortion, a dread of fatness
- endocrine disturbances- due to HPA axis dysfunction, amennorrhoea, reduced sexual interest, raised GH levels, increased cortisol, altered TFTs, abnormal insulin secretion
- delayed/arrested puberty if onset is pre-pubertal
Anorexia Nervosa DSM4
-amenorrhoea is defined as 3 consecutive cycles absent
2 types:
1. Binge-eating/purging type
2. Restricting type
Atypical anorexia nervosa
- disorder that fulfills some of the features of AN but in which the overall clinical picture does not justify the diagnosis
- older in age
- recurring bouts of depression
- numerous somatic complaints
- unmet dependency needs
- little evidence of distortion of body image is seen
ICD10 Bulimia Nervosa
- persistent preoccupation with eating
- irresistible craving for food
- binges
- attempts to counter the fattening effects of food
- morbid dread of fatness with imposed low weight threshold
- in atypical bulimia one or more of these features are absent
DSM Bulimia
2 types
- Purging
- Non-purging
Eating disorder not otherwise specified (EDNOS)
-most common DSM diagnosis of eating disorder
Binge eating disorder (BED)
- falls under atypical bulimia in ICD10 and EDNOS in DSM4
- recurrent binge eating with no purges
- associated with obesity
- mid 40s
- high degree of spontaneous remission and stressed associated overeating is a common phenomenon
Sleep walking
- ICD-10 Chaper 5 F51
- mostly childhood
- if persistence in adulthood then significant psychological disturbance is suspected
- can be seen in early dementia
Sleep terror
- ICD-10 Chapter V F51
- very little recall, autonomic disturbance
- disorientation on waking
Kleine-Levin syndrome
-ICD-10 chapter VI
-periods of hypersomnolence and hyperphagia
-non-specific EEG
-most often seen in adolescent males with complete recovery by 3rd and 4th decade of life
also lack of concentration, mood changes, hypersexuality and anxiety
Narcolepsy
- ICD-10 chapter VI
- excessive daytime drowsiness accompanied by a sudden onset of REM sleep (sleep seizure or narcolepsy)
- sleep paralysis and hypnagogic hallcuinations may also occur but are less common
- virtually always famililal
- 99.5% patients have the HLA antigen DR2
International Classification of Sleep DIsorders
- commonly used
- Dyssomnias- primary insomnia, primary hypersomnia, circadian sleep disorder, narcolepsy, breathing related sleep disorders, sleep state misperception
- Parasomnias: arousal disorders, sleep wake transition disorders, REM sleep parasomnias, other parasomnias
Dyssomnias
- ICSD
- primary insomnia
- primary hypersomnia
- circadian sleep disorders
- narcolepsy
- breathing related sleep disorders
- sleep state misperception
Arousal disorders
- parasomnias
- arise from NREM sleep
- confusional arousals
- sleep walking
- sleep terrors
Sleep-wake transition disorders
- sleep starts
- sleep talking