Addiction Psychiatry 1.3 Flashcards
What was project MATCH?
Multisite (9) USA based RCT of 1726 patients testing the hypothesis that matching patient characteristics to specific treatments would improve alcohol dependence.
What did project MATCH find?
Patients with low support for drinking derived more benefit from motivational enhancement therapy.
Readiness to change and self-efficacy were the strongest predictors of long-term drinking outcomes.
What was the UKATT?
Multicentre (7) pragmatic effectiveness RCT of 742 patients comparing MET and Social Behaviour and Network therapy.
Results of UKATT
No difference in therapies used for alcohol dependence
Who did a meta-analysis into therapies for alcohol dependence
Slattery et al 2003
What do meta analyses of therapies for alcohol dependence show
No difference in therapies re efficacy
What happens in behavioural self-control training?
Placing limits on number of drinks Self-monitoring Using non-alcoholic spacers Using food before/after drink Assertiveness to refuse drink Reward oneself for goals
What is the FRAMES approach to alcohol?
Feedback of risks Responsibility highlighted Advised to abstain or cut down Menu of alternative options Empathic interviewing Self-efficacy enhanced
What is AA an example of
Twelve step facilitation programme (TSR)
What is the idea behind AA
Once someone becomes an alcohol, they remain to be so. This helps by being continuously vigilant and modifying lifestyle accordingly.
Twelve steps of AA
Accept powerlessness in front of alcoholism Admit only a greater power can help Make a decision to turn to care of god Make a searching and fearless moral inventory Admit wrongs done to others Become ready for removal of defects Ask him to help now Be willing to make amends to all Make direct amends where possible Continue personal inventory Prayer and meditation Practice and preach
What model is motivational interviewing based on
Transtheoretical model of change
Aim of motivational interviewing
Help patients explore and resolve their ambivalence about behaviour change
Create dissonance in drinker until they are willing to consider alternatives
Principles of motivational interviewing
Empathy
Attitude-behaviour discrepancy
Roll with resistance w/o confrontation
Support self-efficacy for change
Aim of CBT for relapse prevention
Enhance capacity to maintain abstinence
Impact of CBT on relapse re alcohol
Reduces relapse
Reduces intensity of relapse
Describe the minnesota rehab model
Use of detox, psychoeducation and AA attendance with 4 weeks stay on the ward followed by aftercare at rehab residences
What is a concept house?
Works on a therapeutic community model
Slightly confrontational style, firm feedback given, responsibility emphasized.
Residents have a role in running the house.
Give an example of a concept house
Phoenix house
Px of naloxone for opioid OD
IV at 0.8mg per 70kg of body weight
Harm reduction advice in opioid use
Do not use opiates while alone
Not to use in combination with other routes
Avoid IV
Inject in direction of blood flow
Rotate injection sites
Avoid neck, groin
Ensure complete dissolution before injection - else emboli can occur
Use sterile needles and syringes on each occassion
Use sterile water
Avoid lemon juice - can cause candida endophthalmitis
Never share needles
Drugs available to treat opioid withdrawal
Methadone
Buprenorphine
Alpha 2 agonists
How to decide which drug to give for opioid withdrawal
Patient choice
Duration of treatment
Adverse effects
Withdrawal severity
Which drugs should be used in opioid withdrawal if short duration is desirable
Alpha 2 adrenergic agonists
Buprenorphine
What is Buspirone not helpful in opioid withdrawal?
Chronic pain syndrome
Why does Buspirone not cause withdrawal symptoms on abrupt discontinuation?
Partial agonist
When is methadone for opioid withdrawal more effective?
If carried out slowly or with linear dose reduction
How long can methadone suppress withdrawal for?
24-36 hours
When should alpha 2 agonists be avoided?
Concerns for bradycardia or hypotension
What dose of methadone reduces withdrawal sx?
40-60mg/day
What might high doses of Buprenorphine produce in a dependent patient?
Withdrawal sx as acts as antagonist at high doses
What is methadone effective at?
Reducing heroin use, injecting and sharing equipment
At what doses is methadone effective as maintenance treatment?
60-120mg
Doses of buprenorphine for maintenance treatment
8-16mg
Drugs for relapse prevention with maintenance treatment in opioid misuse
Methadone
Buprenorphine
LAAM
Suboxone
What is LAAM?
Long-acting congener of methadone
How long does LAAM suppress withdrawal for?
48-72 hours
Advantage of LAAM over methadone
Less frequent clinic visits as suppresses withdrawal for longer
Why is LAAM no longer used?
Prolonged QT and Torsades de Pointes
What does Suboxone contain
Buprenorphine
Naloxone
Advantage of Naloxone in Suboxone?
Deters abuse of tablets by IV injection
What does of buspirone and naloxone produces unpleasant withdrawal sx if taken IV?
4:1
What is naltrexone used for?
To nullify effects of heroin if relapse occurs
How long does naltrexone last for
72 hours
Who is Naltrexone suitable for?
Adjuvant therapy
Highly motivated patients
Those who fear consequences if they do not stop opioid use
What forms of Naltrexone need to be tested
Implants
Depot
SEs of Naltrexone
Insomnia Dysphoria Abdominal pain Nausea/vomiting Joint and muscle pain Headaches
What must services do if an opioid dependent patient requests to become abstinent
Offer detox
Provide information
Offer community based approach
Offer first line treatment
What information must services provide to opioid dependent patients wishing to become abstinent?
Withdrawal experience
Management approaches
Loss of opioid tolerance on successful detox and so risk of intoxication rises
When should community based detox for opioid use not be ffered
Previous failure of community detox
Significant additional physical/MH problems
Polydrug detox
Considerable social problems
What is first line treatment for opioid withdrawal
Buprenorphine
Methadone
When should Lofexidine be considered in opioid withdrawal?
Those with mild or uncertain dependence
What must opioid dependent patients be warned about if given Lofexidine?
Need for adjuvant medications to manage nausea, vomiting and shivering
What psychosocial interventions should be offered to opioid withdrawal patients?
Self-help groups
Drug misuse services
Contingency management
Urine tests
Who with opioid dependence should be offered opportunistic brief interventions?
People with limited contact with services
What is contingency management
Incentives e.g. vouchers if clean urine test
How often to do urine tests in those who are in opioid withdrawal
Three tests a week for first three weeks
Two tests a week for next three weeks
Once weekly until stability achieved
Recommendation for treatment of amphetamine dependence
CBT and Contingency management
What pharmacological agents reduce intensity of cocaine withdrawal?
None
What is the fish bowl procedure?
Allowing patients to draw a voucher from a bowel after each negative drug test
Evidence for contingency management in cocaine use?
Evidence supporting its use
What do NICE guidelines recommend contingency management should be used for?
Treatment of primary stimulant misuse and illcit drug use in methadone maintenance treatment
Which psychosocial intervention has the most evidence for cocaine users?
Contingency management
Problem with contingency management
Reduction or loss of response when reinforcement is stopped