Lesson 9.3: Mood, Anxiety, and Psychotic Disorders

Introduction

In this lesson, we will explore mood, anxiety, and psychotic disorders as part of the broader category of psychiatric conditions. Understanding these disorders is crucial for providing effective patient care, especially in contexts where management may involve pharmacologic and behavioral interventions.

Learning Objectives

• Diagnosis and pharmacologic and behavioral management of depression, anxiety, bipolar, and psychotic disorders.
• Medication selection, monitoring, and adverse effects associated with psychiatric medications.
• Select first-line therapy for core psychiatric disorders.
• Monitor for and manage psychotropic adverse effects.
• Explain the main ideas and terminology behind mood, anxiety, and psychotic disorders.

Section 1: Mood Disorders

Mood disorders encompass a variety of conditions, primarily characterized by disturbances in a person's mood or emotional state. Two of the most common mood disorders are major depressive disorder (MDD) and bipolar disorder (BD).

Major Depressive Disorder (MDD)

MDD is marked by persistent feelings of sadness, hopelessness, and a lack of interest or pleasure in daily activities. To diagnose MDD, a clinician typically refers to the DSM-5 criteria, which specify that five or more of the following symptoms must be present during the same two-week period:

1. Depressed mood.
2. Loss of interest or pleasure in most activities.
3. Significant weight loss or gain.
4. Insomnia or hypersomnia.
5. Psychomotor agitation or retardation.
6. Fatigue or loss of energy.
7. Feelings of worthlessness or excessive guilt.
8. Impaired concentration or indecisiveness.
9. Recurrent thoughts of death or suicide.

Example: Diagnosis of MDD

Consider a 30-year-old female patient presenting with symptoms. Over the last three weeks, she has experienced a persistently low mood, significant weight loss due to lack of appetite, insomnia, and an inability to concentrate at work. Based on these symptoms, she meets the DSM-5 criteria for MDD.

Treatment Options for MDD

Pharmacologic Management

The first-line pharmacologic treatments for MDD include selective serotonin reuptake inhibitors (SSRIs) such as fluoxetine or sertraline. These medications work by increasing serotonin levels in the brain, which can help improve mood and emotional regulation.

Example: Medication Selection for MDD

If our patient is diagnosed with MDD, a clinician might consider prescribing sertraline. Important considerations include the patient’s history of medication responses and potential side effects. Common side effects of SSRIs may include sexual dysfunction, gastrointestinal upset, and increased anxiety during the initial weeks of treatment.

Non-Pharmacologic Interventions

In addition to medications, behavioral interventions like cognitive-behavioral therapy (CBT) are also effective in treating MDD. CBT focuses on changing negative thought patterns and improving coping strategies.

Section 2: Anxiety Disorders

Anxiety disorders encompass several conditions characterized by excessive fear or worry. Common anxiety disorders include generalized anxiety disorder (GAD), panic disorder, and social anxiety disorder.

Generalized Anxiety Disorder (GAD)

GAD is marked by persistent and excessive worry about various aspects of life, leading to significant distress or impairment. To diagnose GAD, the DSM-5 indicates that individuals must experience anxiety more days than not for at least six months, accompanied by restlessness, fatigue, difficulty concentrating, irritability, muscle tension, and sleep disturbances.

Example: Diagnosis of GAD

Imagine a 25-year-old male who presents with constant worry about his job performance, finances, and health. He reports feeling restless and has difficulty focusing at work. Based on these symptoms, he may be diagnosed with GAD.

Treatment Options for GAD

Pharmacologic Management

Like MDD, SSRIs are also considered first-line treatments for GAD. In some cases, benzodiazepines may be prescribed for short-term relief of acute anxiety but are not recommended for long-term use due to their addictive potential.

Non-Pharmacologic Interventions

CBT and other relaxation techniques, including mindfulness and meditation, are valuable in treating GAD as well.

Section 3: Bipolar Disorder

Bipolar disorder is characterized by alternating episodes of depression and mania or hypomania. Diagnosis typically follows the DSM-5 criteria, whereby individuals should experience at least one manic episode.

Example: Diagnosis of Bipolar Disorder

A 40-year-old woman who has episodes of extreme energy, euphoria, and decreased sleep patterns for a week, followed by several weeks of deep depression may fit the criteria for bipolar I disorder.

Treatment Options for Bipolar Disorder

Pharmacologic Management

Mood stabilizers, such as lithium, are first-line treatments for bipolar disorder. Antipsychotics may also be employed during acute manic episodes.

Example: Medication Selection for Bipolar Disorder

In our example, lithium might be considered, balancing its potential effectiveness against risks of side effects such as tremors and renal issues.

Non-Pharmacologic Interventions

Psychoeducation for patients and families, coupled with psychotherapy, plays a significant role in managing bipolar disorder effectively.

Section 4: Psychotic Disorders

Psychotic disorders, including schizophrenia, are defined by impaired thoughts, perceptions, and emotions. Symptoms include hallucinations, delusions, and disorganized thinking.

Example: Diagnosis of Schizophrenia

A 22-year-old individual presenting with auditory hallucinations and persistent belief in being followed might be diagnosed with schizophrenia, provided other criteria from the DSM-5 are met.

Treatment Options for Schizophrenia

Pharmacologic Management

Antipsychotic medications, particularly atypical antipsychotics such as risperidone or aripiprazole, are the primary treatment.

Non-Pharmacologic Interventions

Psychosocial interventions, including therapy and social skills training, are essential for improving quality of life and functioning.

Conclusion

In conclusion, understanding mood, anxiety, and psychotic disorders is vital for comprehensive patient care. Always consider the specific clinical presentation and patient history when making diagnostic and treatment decisions. Medication selections should be made with careful attention to potential adverse effects and management strategies. Furthermore, incorporating behavioral therapies can significantly enhance patient outcomes.

Study Notes

• Mood disorders include major depressive disorder (MDD) and bipolar disorder (BD).
• MDD symptoms must meet DSM-5 criteria for a diagnosis, including persistent sadness and lack of interest.
• First-line medications for MDD are typically SSRIs.
• Anxiety disorders include generalized anxiety disorder (GAD) and panic disorder.
• Pharmacologic treatments for GAD often involve SSRIs and potential short-term use of benzodiazepines.
• Bipolar disorder is marked by episodes of depression and mania, often treated with mood stabilizers like lithium.
• Psychotic disorders, notably schizophrenia, are characterized by hallucinations and delusions, treated primarily with antipsychotics.
• Always monitor for medication side effects and engage in behavioral therapies alongside pharmacologic options.