Mood and Anxiety Disorders: Major Depressive Disorder

Area of Science:

• Psychiatry
• Clinical Psychology
• General Medicine

Background:

• Major Depressive Disorder (MDD) is a prevalent mental health condition characterized by a cluster of specific symptoms.
• Early identification and intervention are crucial for managing MDD and preventing long-term consequences.

Purpose of the Study:

• To outline the diagnostic criteria for Major Depressive Disorder (MDD).
• To recommend screening protocols for MDD in the general adult population.
• To describe available screening tools and management strategies for MDD.

Main Methods:

• Diagnostic criteria for MDD involve at least five symptoms, including depressed mood or anhedonia, over a two-week period.
• Screening for MDD is recommended in adults when diagnostic and treatment resources are available.
• Validated screening tools such as the Patient Health Questionnaire-9 (PHQ-9) and Beck Depression Inventory for Primary Care (BDI-PC) can be utilized.

Main Results:

• MDD diagnosis requires specific symptom constellations, with at least one core symptom being depressed mood or loss of interest/pleasure.
• Screening tools like PHQ-9 and BDI-PC aid in identifying potential MDD cases.
• Laboratory tests can help rule out comorbidities or contraindications to treatment.

Conclusions:

• MDD screening is recommended for adults when follow-up care is accessible.
• Management strategies include psychotherapy and pharmacotherapy, with selective serotonin reuptake inhibitors being common.
• Treatment duration of 16-24 weeks is advised to prevent recurrence, with specialist referral considered for complex cases.