Bipolar Disorder: Manic Episodes

Manic Episode: Definition & Epidemiology - The Mania Machine

• Definition: Abnormally & persistently elevated, expansive, or irritable mood AND persistently ↑ goal-directed activity/energy.
• Duration: ≥1 week (or any duration if hospitalization needed).
• Impact: Marked social/occupational impairment, hospitalization to prevent harm, or psychotic features.
• Exclusion: Not due to substance/another medical condition.
• Epidemiology (Bipolar I Disorder):
  • Lifetime Prevalence: ~1%.
  • Age of Onset: Late adolescence/early adulthood (mean ~18-20 yrs).
  • Sex Ratio (Bipolar I): M:F ≈ 1:1.
  • Risk: Strong genetic link (family Hx).

⭐ Manic symptoms lasting <1 week still count if hospitalization occurs.

Manic Episode: Clinical Features - DIG FAST Frenzy

• Mood: Abnormally elevated, expansive, or irritable.
• Energy/Activity: Persistently ↑, goal-directed.
• Duration: ≥ 1 week (or any if hospitalized).
• Impairment: Marked social/occupational dysfunction, hospitalization, or psychotic features.
• Exclusion: Not due to substance/medical condition.
• 📌 DIG FAST (≥3 symptoms; ≥4 if mood only irritable):
  • Distractibility: Poor attention, easily sidetracked.
  • Impulsivity: Reckless behavior (spending, sex, investments).
  • Grandiosity: Inflated self-esteem, special abilities.
  • Flight of ideas: Racing thoughts, rapid speech, topic shifts.
  • Activity ↑: Psychomotor agitation, increased goal-directed actions.
  • Sleep ↓: Decreased need (e.g., 3 hrs), feels energetic.
  • Talkativeness: Pressured speech, very talkative.

⭐ Flight of ideas and a significantly decreased need for sleep (e.g., feeling rested on only 3 hours) are hallmark, frequently tested symptoms.

Manic Episode: Diagnosis & DDx - Pinpointing the Peak

• Diagnosis:
  • Clinical: History (patient & informant), Mental Status Exam (MSE).
  • DSM-5: Elevated/irritable mood + ≥3 (or 4 if mood only irritable) DIGFAST symptoms for ≥1 week (or any duration if hospitalized), causing marked impairment.
    • 📌 DIG FAST: Distractibility, Indiscretion, Grandiosity, Flight of ideas, Activity ↑, Sleep ↓, Talkativeness ↑.
  • Severity: Young Mania Rating Scale (YMRS).
• Investigations (R/O organic/comorbid):
  • Labs: CBC, LFT, KFT, TFT, glucose.
  • Specific: Urine toxicology, VDRL, HIV, B12/Folate.
  • Neuroimaging (CT/MRI): First episode, late onset, atypical, neuro signs.
  • EEG: If seizures.
• Differential Diagnosis (DDx):
  • Psychiatric: Schizophrenia, Schizoaffective, ADHD, Substance-induced mania, Borderline PD.
  • Medical: Hyperthyroidism, Cushing's, CNS lesions/infections, Medications (steroids, L-Dopa).

  ⭐ A single manic episode is sufficient for a diagnosis of Bipolar I Disorder.

Manic Episode: Management - Calming the Chaos

1. Acute Phase: Rapid Stabilization

• Goal: Control agitation, psychosis; ensure safety; low-stimulus environment.
• Pharmacotherapy (Severe Agitation):
  • IM Antipsychotic: Olanzapine (5-10mg), Haloperidol (5-10mg).
  • Adjunct IM Lorazepam (2-4mg).
• Pharmacotherapy (Oral Options):
  • Atypicals: Risperidone, Olanzapine.
  • Valproate (load 20-30mg/kg), Lithium (acute 0.8-1.2 mEq/L).
• ECT: Treatment-resistant, severe mania, catatonia, pregnancy.

2. Maintenance Phase: Relapse Prevention

• Goal: Sustain euthymia.
• Mood Stabilizers:
  • Lithium (0.6-1.0 mEq/L). 📌 LMNOP: Lithium, Movement, Nephro, HypOthyroid, Pregnancy.
  • Valproate (50-125 µg/mL).
  • Lamotrigine (slow titration, SJS risk).
• Atypical Antipsychotics: Olanzapine, Risperidone LAI.
• Psychosocial: Psychoeducation, CBT.

⭐ Lithium is highly effective for preventing manic relapses and reducing suicide risk in Bipolar Disorder.

High‑Yield Points - ⚡ Biggest Takeaways

• Manic Episode: Elevated/irritable mood & ↑ energy/activity for ≥1 week (or hospitalization).
• ≥3 DIGFAST symptoms (Distractibility, Indiscretion, Grandiosity, Flight of ideas, Activity ↑, Sleep ↓, Talkativeness).
• Bipolar I Dx: Min. one manic episode.
• First-line: Mood stabilizers (Lithium, Valproate) or atypical antipsychotics.
• Severe mania/psychosis: Consider ECT or combination therapy.
• Rule out substance/medical causes of mania.
• Rapid cycling: ≥4 mood episodes in 1 year.