OCD and Related Disorders Lecture Notes

Classification and Overview of Obsessive-Compulsive Disorder (OCD)

• Obsessive-compulsive disorder (OCD) was historically classified as an anxiety disorder, but it is currently distinguished from other anxiety disorders due to significant differences in clinical presentation.
• OCD and its related disorders are organized under a broad spectrum.
• The spectrum includes several categories based on behavioral characteristics:
  • Repetitive Behaviors: These include conditions such as trichotillomania (hair-pulling) or dermatillomania (skin-picking).
  • Reward-Seeking Behaviors: This category comprises hoarding, kleptomania (compulsive stealing), pyromania (compulsive fire-setting), and oniomania (compulsive buying).
  • Body Appearance and Function Disorders: This category includes Body Dysmorphic Disorder (BDD).
• The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) officially recognizes specified disorders on this spectrum, including:
  • OCD
  • Body Dysmorphic Disorder (BDD)
  • Hoarding
  • Trichotillomania
  • Excoriation (skin-picking disorder)
• Current clinical guidelines note that some disorders on this spectrum are not yet officially recognized by the American Psychiatric Association.
• Disorders on the spectrum may sometimes be attributable to the use of medications, substances, or other medical origins.

Clinical Manifestations and Rituals

• OCD often begins in childhood and has a high likelihood of persisting into adulthood.
• Common rituals associated with the disorder include:
  • Checking
  • Counting
  • Washing
  • Praying
  • Exercising
• Individuals with OCD are typically aware that their rituals interfere with their daily lives. Simply informing them of this fact is not beneficial, as they often cannot change their patterns of thinking or behavior without professional help.
• Symptom severity can fluctuate, often referred to as waxing and waning. Periods of relatively good functioning with limited symptoms may be interrupted by exacerbations that cause extreme stress.
• Stressful periods generally correlate with an increase in symptom severity.

Epidemiology and Developmental Onset

• Gender Distribution: OCD occurs with equal frequency in males and females overall.
• Early Onset OCD:
  • Defined as onset by the age of $10$.
  • More common in males.
  • Characteristics include more severe symptoms, a higher number of comorbid diagnoses, and a stronger likelihood of family history of the disorder.
• Late Onset OCD:
  • Commonly occurs around the age of $19$.
  • In females, onset is more common during their $20s$.
• Onset After age $50$:
  • Extremely rare.
  • If symptoms appear after age $50$, clinicians must investigate organic causes, such as infection, degenerative disorders, brain injury, or cerebrovascular lesions.

Specific Disorders on the OCD Spectrum

• Excoriation (Dermatillomania):
  • Involves chronic skin picking.
  • Categorized as a self-soothing behavior.
  • Common target areas include the face, fingers, hands, arms, and legs.
• Trichotillomania:
  • Involves chronic, repetitive hair pulling.
  • Categorized as a self-soothing behavior.
• Body Dysmorphic Disorder (BDD):
  • A preoccupation with an imagined or slight defect in physical appearance.
  • Significantly interferes with daily functioning.
  • Has high overlap with other conditions such as social anxiety disorder, depression, and excoriation disorder.
  • Cosmetic surgery is highly discouraged for individuals with BDD.
  • Selective Serotonin Reuptake Inhibitors (SSRIs) can be used to prevent relapse.
• Hoarding:
  • Excessive acquisition of animals or useless items, or maintaining a cluttered living space.
  • Recognized only recently as a stand-alone diagnosis.
  • Commonly manifests between the ages of $20$ and $30$.
• Chronic Nail Biting (Onychophagia):
  • A self-soothing behavior.
  • In severe cases involving bleeding and infections, treatment with SSRIs and Cognitive Behavioral Therapy (CBT) may be effective.
• Kleptomania:
  • Compulsive stealing characterized as a reward-seeking behavior.
  • The primary reward is the thrill of the act and avoiding detection rather than the utility of the object.
  • Currently lacks standardized treatment protocols.
• Oniomania (Compulsive Buying):
  • A reward-seeking behavior where the reward is the acquisition of the item rather than its use.
  • Approximately $80\%$ of cases occur in females, typically in their $20s$ and among college students.
  • Often runs in families and is comorbid with depression and substance use.
• Body Identity Integrity Disorder (Amputee Identity Disorder):
  • Occurs when individuals feel alienated from a specific part of their body or feel "overcomplete."
  • Results in a desire for amputation of a limb.
  • Individuals may take extreme measures, such as packing the desired limb in dry ice to force a surgeon to perform an amputation due to tissue damage.

Cultural and Religious Influences

• The prevalence of OCD is fairly consistent around the world.
• Religious Factors:
  • Highly religious individuals may experience a heightened sense of guilt regarding their symptoms.
  • They may believe they should be personally responsible for controlling threatening or unwanted thoughts.
  • Shame and guilt are frequently associated with the condition in these contexts.
• Supernatural Beliefs:
  • In some countries, OCD is attributed to supernatural causes.
  • Individuals may seek assistance from faith healers instead of clinical professionals.
  • Religious or cultural stigma may lead some to hide their symptoms rather than seeking help.

Etiology and Treatment Modalities

• Etiology: Causes include genetic influences and environmental experiences.
• Pharmacological Treatment:
  • Selective Serotonin Reuptake Inhibitors (SSRIs) are a primary medication used.
• Behavioral Therapies:
  • Exposure Therapy.
  • Response Prevention Therapy.
  • Cognitive Behavioral Therapy (CBT).
• Treatment Strategy: A combination of medication and behavioral therapy is superior to using either modality alone.
• Community and Technology:
  • Community-based care focuses on maintaining exposure and response prevention techniques over extended periods.
  • Technology-enhanced delivery methods include computerized CBT or telehealth.

Nursing Interventions and Patient Support

• Therapeutic Communication: Essential for building trust and understanding with the patient.
• Stress Management: Teaching relaxation and behavioral techniques to help patients manage anxiety.
• Routine and Structure: Helping the patient follow a consistent daily routine to provide stability.
• Education: Providing thorough education to both the patient and their family regarding the nature of OCD and its treatment to ensure a supportive environment.