Anxiety Disorders Flashcards
When does OCD usually present?
Teens/20s
What are the most common comorbidities with OCD?
Major depression Tics Phobias Eating disorders Alcohol
Describe the thoughts associated with OCD?
Obsessional thoughts
Intense impulse, thoughts or images which provoke intensity
Repetitive, intrusive, unwanted and resisted
Do patients have insight into their thoughts in OCD?
Yes - thoughts are unpleasant and unwanted but recognised as own and irrational
What is the most common thought had in OCD?
Contamination/uncleanliness
Describe the acts associated with OCD?
Internalised and ritualised consequences of obsession to remove the anxiety caused by thoughts
E.g. Washing
What percentage of people have only the obsessive thoughts in OCD (no actions)?
25%
What is the mainstay of therapy for OCD? What are the 2 types?
CBT
Exposure response prevention ERP and cognitive therapy CT
Describe exposure response prevention and how it is performed?
Graded exposure to stressful situation and prevention of compulsive response until anxiety goes away
Every day for at least 1-2 weeks, either with guided self help or direct professional contact
Describe how cognitive therapy is used in OCD?
Psychological treatment aimed at changing response to thoughts, rather than get rid of them
Often used alongside ERP or for the 25% that have only obsessional thoughts
What medications may be utilised in OCD? When?
SSRIs to help reduce the obsessions and compulsions
Often used alongside ERP/CT for moderate to severe OCD
What are the second line pharmacological treatment options for OCD after one SSRI?
Try another SSRI
Or use clomipramine - at low doses acts like SSRI
How long is medication recommended for in OCD and how does it help?
At least 12m
Reduces symptoms and prevents return of symptoms
What is the caveat to taking medications for OCD and how is this risk reduced?
50% relapse rate
Less likely if CBT also used
Management of OCD?
For mild CBT alone effective
For moderate can choose CBT (10 hours professional contact) or 3m of medication
For severe try both together
Options for treatment resistant OCD?
CT plus ERP plus medication
Polypharmacy e.g. Clomipramine plus citalopram
Antipsychotics e.g. Aripiprazole or risperidone
Treat comorbidities
DBS?
What is the difference between OCD and obsessive compulsive personality disorder?
OCD is egodystonic so causes distress
OCPD is egosyntonic so fits in with individuals personality and does not cause distress
Where can be targeted in surgical management of OCD?
Cingulate cortex ACC - can use DBS or lesions
Also ECT, VNS
Also anterior ventral capsullotomy with gamma knife
What is the most recent site of use for DBS in OCD?
VC/VS - ventral capsule ventral striatum area
What 3 features of anxiety make it more likely to be pathological?
Persistence
Frequency
Intensity