Les troubles dépressifs (selon le DSM-5-TR)

Understanding Depressive Disorders

Overview of Depressive Disorders

• The second part of a three-part series focuses on depressive disorders, following an initial discussion on differentiating emotions, feelings, and moods.

• This segment will cover specific types of depressive disorders: Major Depressive Disorder (MDD), Persistent Depressive Disorder (Dysthymia), and Substance-Induced Depressive Disorder.

General Characteristics of Depressive Disorders

• Depressive disorders are characterized by persistent low or irritable mood, along with somatic and cognitive changes that disrupt functioning.

• Factors contributing to depression include biological influences, negative personality traits, childhood trauma, stress exposure, untreated anxiety disorders, substance use (e.g., alcohol), and physical health issues like hypothyroidism.

Major Depressive Disorder (MDD)

• MDD is a term used in DSM-5; previously referred to as major depression. Diagnosis requires at least five symptoms lasting for a minimum of two weeks.

• Symptoms typically persist for months or years in severe cases. A key symptom is a depressed or irritable mood where individuals may feel sad or hopeless.

Symptoms of Major Depressive Disorder

• Individuals may not always express sadness verbally; symptoms can manifest differently across demographics (e.g., elderly or men may show irritability instead).

• Another critical symptom is the loss of interest in activities once enjoyed. This change must be significant and sustained over time.

Additional Symptoms

• Changes in appetite or weight can occur—either significant weight loss due to decreased appetite or weight gain from increased eating habits.

• Sleep disturbances are common; individuals may experience insomnia or hypersomnia affecting their daily lives significantly.

Psychomotor Changes and Cognitive Impairments

• Psychomotor changes can present as either agitation or retardation; individuals might appear physically slowed down or excessively restless without purpose.

• Feelings of guilt and worthlessness often arise; individuals may perceive themselves as failures beyond typical feelings associated with illness.

Cognitive Difficulties

• Concentration problems can make everyday tasks challenging; reading instructions or making decisions becomes increasingly difficult for those affected.

Understanding Depression and Grief

The Complexity of Daily Decisions in Depression

• Individuals suffering from depression often find simple daily decisions, such as what to wear or what to eat, extremely challenging.

• It's common for those with depression to experience thoughts of death, not necessarily suicidal ideation but a desire for relief from their pain.

• Depression can lead to significant distress and disruption in functioning, affecting work attendance and interpersonal relationships.

• In severe cases, individuals may lack the energy or motivation even for self-care activities like cooking or personal hygiene.

Distinguishing Grief from Depression

• Grief is often confused with depression; it encompasses loss beyond just the death of a person, including loss of abilities or possessions due to serious illness or disasters.

• Common symptoms between grief and depression include sadness and sleep/appetite disturbances; however, self-esteem typically remains intact during grief.

• It’s important to evaluate each situation holistically to determine whether someone is experiencing grief or clinical depression.

Prolonged Grief Disorder

• Prolonged grief disorder is a new diagnosis in DSM 5 related to trauma and stress factors.

• Experiencing a depressive disorder increases the risk of developing prolonged grief disorder.

Persistent Depressive Disorder

• Persistent depressive disorder involves meeting criteria for depression over two years, characterized by long-lasting symptoms that do not improve significantly within two months.

Substance-Induced Depressive Disorder

• Symptoms of substance-induced depressive disorder arise from psychotropic substances (e.g., alcohol), persisting even after cessation of use.

• Prior to regular substance use, individuals typically function within normal limits before developing depressive symptoms.