Health anxiety, somatisation, medically unexplained symptoms and eating disorders | Flashcards
What is the definition of health anxiety?
What 3 things does it include?
An umbrella term that encompasses a wide range of:
- Excessive health-related concerns (e.g. ruminations on having an illness, suggestibility if one reads or hears about a disease, unrealistic fear of infection)
- Somatic perceptions (e.g. preoccupation with bodily sensations or functioning)
- Behaviours (e.g. repeated reassurance seeking, avoidance of medications or medical personnel)
This can also apply to a person with a medical illness. If this is the case, their reaction will be out of proportion with what would be expected
What is somatisation?
The process by which “psychological distress is expressed through physical symptoms and subsequent medical help-seeking”
Also known as medically unexplained symptoms
Health anxiety is not a term found in ICD-10, however it is linked to which conditions (6)?
- Hypochondriasis or hypochondriacal disorder (concerns about having a serious illness persists for at least six months despite medical assurance and these concerns cause clinically significant impairment or distress)
- Somatisation disorder
- OCD
- Body dysmorphic disorder
- Panic disorder
- Delusional disorder
What is the ICD-10 diagnoses of somatisation disorder?
- History of at least 2 years complaints of multiple and variable physical symptoms that cannot be explained by any detectable physical disorder
- Preoccupation with symptoms causes persistent distress and leads the patient to seek repeated consultations or sets of investigation with either primary care or specialist doctors; or persistent self-medication
- There is persistent refusal to accept medical reassurance that there is no adequate physical cause for the physical symptoms
- A number of symptoms from at least 2 separate groups from the following list:
- GI Symptoms: Abdominal pain, nausea, feeling bloated, bad taste in mouth, complaints of vomiting, complaints of frequent loose bowel motions
- Cardiovascular: breathlessness without exertion, chest pains
- GU symptoms: dysuria, unpleasant sensation around the genitals, complaints of unusual or copious vaginal discharge
- Skin and pain complaints: blotchiness, discoloration, pain in limbs, unpleasant numbness or tingling sensation
What is hypochondriacal disorder?
- Either of:
a. Persistent belief, of at least 6 months, of the presence of a maximum of two serious physical diseases (of which at least one must be specifically named by the patient)
b. Persistent preoccupation with a presumed deformity or disfigurement (body dysmorphic disorder) - Preoccupation with the belief and the symptoms causes persistent distress or interference with personal functioning in daily living, and leads the patient to seek medical treatment or investigation
- Persistent refusal to accept medical reassurance that there is no physical cause for the symptoms or physical abnormality
What is factitious disorder?
- Patient feigns or exaggerates symptoms for no obvious reason
- Patient may even inflict self-harm in order to produce symptoms or signs
- Internal motivation with aim of adopting the sick role
- Munchausen syndrome by proxy - the patient imposes symptoms to other individuals (e.g. a child)
What is malingering?
Conscious manufacturing or exaggerating of symptoms for a secondary gain e.g. benefits, housing, other than assuming the sick role
What are the 3 subtypes of health anxiety?
- Cognitive type
- Somatising type
- Behavioural type
What is cognitive type health anxiety?
Health anxiety with high cognitive awareness and more pronounced fear of disease
What is somatising type health anxiety?
Health anxiety with high symptom awareness and more pronounced bodily preoccupation
What is behavioural type health anxiety?
Health anxiety with high disease conviction and avoidance
What are predisposing factors for heath anxiety and somatisation?
- Family members with health anxiety
- Somatisation disorder among relatives
- Early life trauma (sexual trauma, violence, parental upheveal)
- Family history of OCD
What are precipitating factors for heath anxiety and somatisation?
- Personal experience of a previous illness - misinterpret bodily sensation, fear of relapse
- Significant illness of a loved one
What are perpetuating factors for health anxiety and somatisation?
- Somatosenosry amplification - paying too much focus on minor body sensations
- Increase sensitivity in certain brain area (anterior cingulate, prefrontal cortex)
What are ddx for hypochondriasis, somatisation and medically unexplained symptoms?
- Depression and anxiety disorders
- Personality disorder
- Organic conditions
- Dissociative (conversion) disorders
What is dissociative (conversion) disorder?
- Classically a traumatic event leads to a disruption of the usually integrated functions of consciousness, memory, identity or perception
- Patient may deny the impact of the traumatic event
- They may also show a lack of concern for the disability
- Sometimes it is called conversion disorder - convert anxiety into more tolerable symptoms (primary gain) that attract benefits of the sick (secondary gain)
What are the different presentations of dissociative disorder?
- amnesia
- fugue (sudden, unexpected journey that may last a few months, together with memory loss, confusion about personal identity)
- stupor
- trance or possession disorders
- motor disorders
- anaesthesia/sensory loss
- convulsions (“pseudo-seizures” or “psychogenic non-epileptic seizure”)
What are the general principles of health anxiety/somatisation?
- Managed in primary care
- Rapport
- Help them feel appreciated and understood, acknowledge patient’s symptoms are real and they don’t make these up
- refocus treatment away from ‘cure’ and towards symptom management - Investigations
- minimise unnecessary tests and treatment - sometimes boundary is important. Over-investigations or over-medication can reinforce physical illness beliefs and further increase anxiety
- do reasonable investigations and don’t assume everything is in the patient’s mind - Interaction with patients
- Scheduling of regular appointment independent from symptom status, preferably with the same healthcare professional to avoid doctor shopping - Make the link between physical symptoms and psychological factors and broaden the agenda from a purely physical cause to include a psychological explanation
What is the biological management of health anxiety/somatisation?
- Evidence of the long-term efficacy of medications is weak
- Sometimes antidepressants (SSRI, SNRI) may be useful
- In the case of hypochondriacal delusion, antipsychotic may also be indicated
- Avoid routine benzodiazepine use
What is psychological management of the health anxiety/somatisation?
- CBT
2. Psychoeducation
What is the social management of health anxiety/somatisation?
- Encourage normal function - patient may avoid normal activities as they think these activities may exacerbate problems
- Involve social network to improve emotional support
What is the prognosis of somatisation or hypochondriasis?
- Some respond well to medication, psychotherapy, or both
- If the person has anxiety or depression that responds to treatment with medication, the prognosis can be quite good.
- In mild cases, the symptoms can be short-lived.
- If the symptoms are severe and the person has other mental health disorders, the person may be susceptible to chronic distress and problems functioning.
What is the biological aetiology of anorexia nervosa?
Unclear, but theories are:
- Monozygotic twin concordance significantly higher than dizygotic twin
- Neuro/endocrine changes (disturbance of hypothalamic function, increased serotonin levels, brain atrophy
- Changes in brain normalise when weight is restored through regular intake of balanced diet
What is the psychological aetiology of anorexia nervosa?
- Perfectionism
- Low self-esteem (weight loss as a sense of achievement)
- Sexual development (early development)
- History of abuse (sexual, physical, psychological, neglect)
- Personality disorder
What is the social aetiology of anorexia nervosa?
- Family: possible (research is being conducted at present)
- Theories include parental overprotection and family enmeshment. The young person with anorexia nervosa may be avoiding separation from family or becoming an independent sexual being.
What is the biological aetiology of bulimia nervosa?
- Changes in levels of serotonin
2. Monozygotic twin and dizygotic twin concordance rates broadly similar
What is the psychological aetiology of bulimia nervosa?
- Low self esteem
- History of abuse (sexual, physical, psychological, neglect)
- history of self harm
- impulsive personality traits
- personality disorder
- High value placed on food and eating behaviour (either personally or within the family culture)
- History of being over-weight (factual or perceived)
What is the social aetiology of bulimia nervosa?
- Exposure to culture of dieting
2. Family/ social culture of categorizing food as good or bad, healthy or naughty treat
What are important elements of the history of an eating disorder?
- Eating behaviour
- Medical history
- Personal and social history
- Psychiatric history
Also need to do:
- Mental state
- Risk assessment
What specific qs do you need to ask in a history about eating behaviour in someone with a possible eating disorder (4)?
- Methods of weight loss: diet, weight control (exercise, vomiting, medications)
- Typical day, intake (fluid and solids)
- Relationship with body image (past and present)
- Any binge eating and/or compensatory behaviours