OBSESSIVE COMPULSIVE DISORDER: DIAGNOSIS & TREATMENT
Wendy Settle, Ph.D.
University of Notre Dame
University Counseling Center
I. OCD DIAGNOSIS
Provide definition (DSM IV). Screen all clients with sx of anxiety &/or depression for OCD. 30% also depressed / dysthymic at intake. 67-75% MD & 25% social phobia lifetime prevalence. 75% with coexisting PD (avoidant, dependent, histrionic, schizotypal). Distinguish between OCD & OCPD (25%). Waxing / waning Sx. "OCD Spectrum Disorders" debate. Use the Yale-Brown OC Scale to dx and set up tx.
II. BASE RATE
2-3% lifetime prevalence, 10% in outpatient clinics. 4th most common Dx. OCD afflicts as many as 5 million Americans, or 1 in 50. Epidemiological studies in Europe, Asia, Africa confirms rates across cultural boundaries. Usually begins in adolescence and early adulthood (x age 20), 2/3s by age 25. Some cases occur in childhood, ration is 75% male. For adults, affects males and females equally. More prevalent than schizophrenia, panic disorder.
III. ETIOLOGY
Neurotransmitter / Brain Imaging Studies: OCD caused by abnormal metabolism in specific areas of the brain, specifically a dysregulation of the neurotransmitter serotonin. See Brain Lock chapter 2 for explanation of biology of OCD.
1. ORBITAL GYRI (Frontal Lobe) Involved in social consciousness regarding proper behavior. Underactivity leads to coarsening of social consciousness and behavior such as hypersexuality, overeating to the point of obesity, and personality changes, such as inappropriate use of profanity and crude jokes. Overactivity leads to excessive concern with meticulousness fastidiousness and "nit picking." Believed to be underlying the symptoms of OCD.
2. CAUDATE NUCLEI Filter info coming from the frontal lobe. Some believe that if too many messages regarding worries about how things should be done reach the caudate nuclei, they are not filtered properly and spill over and can flood consciousness.
Genetics: Inherited. Family studies of OCD patients show that 35% of their first degree relatives also have OCD. 32 (63%) of 51 monozygotic twins concordant for OCD.
Trauma / Head Injury / Infections: Termed "secondary OCD." Children (1%) strep infection can trigger an autoimmune response leading to OCD (rare, but 75% of children w/ Sydenhams chorea have OCD). Adults: childbirth may trigger OCD in women.
Obsession is created by a neutral stimulus that becomes associated with fear through conditioning. Compulsion created because the person discovers a certain action reduces the anxiety attached to the obsessional thought. Avoidance strategies become fixed as learned patterns of compulsive behavior. Develops frequently (50-70%) after a stressful event, e.g. pregnancy, sexual problem, death of a relative.
IV. TREATMENT:
28% of people with OCD do not seek Tx. 50% who do seek Tx do not seek help from a mental health professional. Mean time between onset and seeking Tx is 7.6 years. 70-90% of people who begin combination of behavior and drug therapy significantly decrease symptoms 60% average improvement rate. Improvement in 3 months to 6 years. Outpatient Tx. Number who decline to start Tx or drop out: 10-25% (both beh and meds). Combination of pharmacotherapy and behavior therapy recommended.
Fluoxetine (Prozac)
40-80 mg/day
Sertraline (Zoloft) 50-200 mg/day
Fluvoxamine (Luvox) 100-300 mg/day
Citalopram (Celexa) 20-60 mg/day
2. Tricyclic / SRI: (titrated over 2-3 weeks to avoid gastrointestinal effects & orthostatic hypotension, also causes significant sedation and anticholinergic effects)
Clominipramine
(Anafranil) 150-250 mg/day
Paroxetine (Paxil) 40-60 mg/day
Anxiety / panic:
Buspirone (60-90 mg/day)
Clonazepam (0.5-3.0 mg/day)
Mood lability : Lithium
Psychosis: Risperidome (0.5 6.0 mg/day)
Depressive symptoms may improve before OCD. Most OCD patients do not respond until 4-6 weeks, but full 10 week trial at adequate dosage is needed before a trial can be deemed adequate. Tx should continue for 6-12 months tapering the medication. Many pts relapse when medication is discontinued.
Exposure Therapy with Ritual Prevention & Multi-modal Treatment
a. Imaginal Exposure: Good for disaster fears, useful adjunct. Stay focused on the target situation scene until the discomfort begins to abate (SUDS drops by 50%). Can take 1 hour to 90 min. Pt asked to practice imagining at home daily and record SUDS.
b. In Vivo Exposure: Follows imaginal exposure in the same or subsequent session. Confront situation in real life, without rituals or avoidance (told that each time they ritualize, they inadvertently strengthen their OCD). Practice until target situation SUDS decreases to 50-20%. Abrupt = gradual, but gradual more comfortable starting with moderate difficulty. Prevent using "normal" activity in the service of anxiety avoidance, covert cognitive rituals, or ritualizing by proxy.
c. Relaxation Training (adjunctive, structured)
d. Family Involvement
e. Relapse Prevention integrated into treatment. Slips are valuable learning opportunities.
V. RECOMMENDED SELF HELP BOOKS
Ciarrocchi, J.W. (1995). The Doubting Disease: Help for scrupulosity and religious compulsions. NY: Integration Books.
Foa, E. & Wilson, R. (1991). Stop Obsessing! How to overcome your obsessions and compulsions. NY: Bantam Books.
Hyman, B. & Pedrick, C. (1999). The OCD Workbook: Your guide to breaking free from Obsessive-compulsive disorder. Oakland, CA: New Harbinger Publications.
Steketee, G. & White, K. (1990). When Once is Not Enough: Help for obsessive compulsives. Oakland, CA: New Harbinger Publications.
Schwartz, J.M. (1996). Brainlock: Free yourself from obsessive-compulsive behavior. NY: Regan Books.
VI. SOURCES / RESOURCES
Bebbington, P.E. (1998). Epidemiology of obsessive-compulsive disorder. The British Journal of Psychiatry, 173:2-6.
Ellison, J.M. (Ed.) (1996). Integrative treatment of anxiety disorders. Washington, DC: American Psychiatric Press.
Hollander, E. (1998). Treatment of obsessive-compulsive spectrum disorders with SSRIs. The British Journal of Psychiatry, 173:7-12.
Sadock, B.J. & Kaplan, H.I. (Eds.) (1998). Kaplan and Dadocks Synopsis of Psychiatry: Behavioral Sciences / Clinical Psychiatry, 8th edition. Lippincott, Williams & Wlikins.
Steketee, G. (1999). Overcoming obsessive-compulsive disorder: Client manual. (Best practices for therapy: Empirically based treatment protocols series). Oakland, CA: New Harbinger Publications.
Steketee, G. (1999). Overcoming obsessive-compulsive disorder: Therapist manual. (Best practices for therapy: Empirically based treatment protocols series). Oakland, CA: New Harbinger Publications.
Steketee, G. (1993). Treatment of obsessive-compulsive disorder. NY: Guilford Press.
Swinson, R.P., Anton, M.M., Rachman, S., & Richter, M.A. (1998). Obsessive-compulsive disorder: Theory, research, and treatment. NY: Guilford Press.
Zajecka, J.M. (1995). New developments in obsessive compulsive disorders and its co-morbid conditions. Handout from the South Dakota Medical Information Exchange audio teleconference. Office of Continuing Medical Education, University of SD School of Medicine: Sioux Falls, SD.