Acute Stress Disorder

Acute Stress Disorder: Overview - Stress Storm Starter

• Definition: Intense, unpleasant, and dysfunctional reaction beginning shortly after an overwhelming traumatic event.
• Essential Features: Intrusion, negative mood, dissociation, avoidance, and arousal symptoms.
• Onset & Duration: Symptoms develop after a traumatic event and last from 3 days to 1 month.
  • 📌 Mnemonic: "Acute Stress Disorder = After Stress, Days to a month."
• Distinction from PTSD: If symptoms persist beyond 1 month, diagnosis changes to PTSD.

⭐ ASD is characterized by the development of symptoms lasting from 3 days to 1 month following exposure to one or more traumatic events. This temporal criterion is crucial for differentiating it from PTSD.

Acute Stress Disorder: Epidemiology & Risk Factors - Vulnerability Vectors

• Prevalence: Varies with trauma type; ~20% after non-interpersonal trauma, higher for interpersonal trauma (e.g., assault ~20-50%).
• Key Risk Factors:
  • Trauma Severity: ↑severity, ↑risk.
  • Prior Trauma: History of previous traumatic events.
  • Gender: Female gender associated with ↑vulnerability.
  • Mental Health: Pre-existing psychiatric conditions.
  • Social Support: Lack of adequate social support.

⭐ Individuals with a history of prior trauma or pre-existing psychiatric conditions are at a higher risk of developing ASD.

Acute Stress Disorder: Clinical Features & DSM-5 - Criteria Checklist Chaos

• DSM-5 Criteria:
  • A: Trauma exposure.
  • B: ≥9 symptoms from 5 categories (📌 I-N-D-A-A) post-trauma:
    • Intrusion: Memories, dreams, flashbacks.
    • Negative Mood: Inability for positive emotions.
    • Dissociative: Altered reality, amnesia.
    • Avoidance: Of distressing memories/reminders.
    • Arousal: Sleep issues, hypervigilance, startle.
  • C: Duration: 3 days to 1 month.
  • D: Significant distress/impairment.
  • E: Not substance/medical.

⭐ For a DSM-5 diagnosis of Acute Stress Disorder, a minimum of nine symptoms from any of the five categories (intrusion, negative mood, dissociative, avoidance, arousal) must be present.

Acute Stress Disorder: Differential Diagnosis - Diagnostic Dilemmas

Key differentiating features:

• Brief Psychotic Disorder: Primary psychotic features.

⭐ Critical: ASD resolves within one month of trauma; PTSD symptoms persist > 1 month.

Acute Stress Disorder: Management - Calming the Crisis

• Psychological Interventions (First-Line):
  • Trauma-Focused Cognitive Behavioral Therapy (TF-CBT): Gold standard to process trauma and reduce symptoms.
  • Psychoeducation: Normalize reactions, explain ASD.
  • Supportive Counseling: Enhance coping mechanisms.
• Pharmacotherapy (Adjunctive & Symptomatic):
  • Primarily for insomnia or severe anxiety; short-term use.
  • SSRIs: Not routine for ASD; consider if transitioning to PTSD or for significant comorbidities.
  • ⚠️ Benzodiazepines: Use with extreme caution or avoid. Risk of dependence; may interfere with natural recovery.

⭐ Trauma-focused Cognitive Behavioral Therapy (TF-CBT) is the evidence-based, first-line treatment for Acute Stress Disorder, crucial for preventing progression to PTSD.

High‑Yield Points - ⚡ Biggest Takeaways

• Acute Stress Disorder (ASD) involves symptoms lasting 3 days to 1 month following traumatic event exposure.
• Crucial distinction from PTSD: Symptom duration is <1 month for ASD.
• Features five symptom clusters: intrusion, negative mood, dissociation, avoidance, and arousal.
• Dissociative symptoms like derealization or dissociative amnesia are frequently observed.
• Trauma exposure criteria include direct experience, witnessing, or learning of trauma to close contacts.
• Trauma-focused CBT is the primary psychotherapeutic intervention.
• ASD significantly ↑ risk of subsequent Post-Traumatic Stress Disorder (PTSD).