Welcome and Episode Introduction* Hosts: Dr. Pradip Kamat (Children’s Healthcare of Atlanta/Emory University) and Dr. Rahul Damania (Cleveland Clinic Children’s Hospital) * Mission: A podcast dedicated to current and aspiring pediatric intensivists, exploring intriguing PICU cases and acute care pediatric management * Focus of the Episode: Managing toxic alcohol ingestion in the PICU with emphasis on ethanol, methanol, ethylene glycol, propylene glycol, and isopropyl alcohol

Case Presentation* Patient Details: A 7-month-old male presented with accidental ethanol ingestion after his formula was mixed with vodka * Key Symptoms: Lethargy, uncoordinated movements, decreased activity, and ethanol odor * Initial Labs & Findings: * EtOH level: 420 mg/dL. * Glucose: 50 mg/dL. * Normal CXR and EKG. * PICU Presentation: Tachycardic, normotensive, lethargic, with signs of CNS depression * Initial Management: Dextrose infusion, glucose monitoring, neurological observation, and ruling out complications

Key Learning Points from the Case* Toxic alcohol ingestion in pediatrics requires rapid stabilization and targeted interventions * Hypoglycemia and CNS depression are common features of ethanol toxicity in infants * Management prioritizes glucose correction, airway support, and close neurological monitoring

Deep Dive: Toxic Alcohols in the PICU1. Ethanol

  • Typical Presentation in Infants/Toddlers: Hypotonia, ataxia, coma, hypoglycemia, hypotension, and hypothermia
  • Diagnostic Workup:
  • Focus on CNS and metabolic effects
  • Labs: Glucose, electrolytes, bicarbonate, anion gap, ketones, toxicology screen
  • Imaging (head CT) if indicated
  • Management: Stabilization, IV dextrose for hypoglycemia, NPO status until alert, and consultation with poison control and social work

2. Methanol

  • Sources: Windshield fluids, cleaning agents, moonshine

Clinical Stages:

  1. Early: Dizziness, nausea, vomiting (0–6 hours)
  2. Latent: Asymptomatic (6–30 hours)

  3. Late: Vision disturbances, seizures, respiratory failure (6–72 hours)

  4. Key Symptoms: “Snowstorm blindness” from retinal toxicity

  5. Management: Fomepizole, correction of metabolic acidosis, and hemodialysis in severe cases

3. Ethylene Glycol

  • Sources: Antifreeze, brake fluids, household cleaners
  • Pathophysiology: Metabolism to glycolic acid (acidosis) and oxalic acid (renal failure due to calcium oxalate crystals)
  • Red Flags: Hypocalcemia, renal failure, QT prolongation
  • Management: Fomepizole, supportive care, and hemodialysis for severe toxicity

4. Propylene Glycol

  • Sources: Medications like lorazepam and pentobarbital
  • Presentation: High anion gap metabolic acidosis at high doses, with renal and liver dysfunction
  • Management: Discontinue offending agent, supportive care, and hemodialysis if severe

5. Isopropyl Alcohol

  • Sources: Disinfectants, hand sanitizers
  • Presentation: CNS depression, GI irritation, fruity acetone breath, but no metabolic acidosis
  • Management: Supportive care; fomepizole and ethanol are ineffective

Key Laboratory Insights* Osmolar Gap Formula: * Measured Osmolality - Calculated Osmolality * A high osmolar gap indicates unmeasured osmoles like toxic alcohols. * Lactate Gap in Ethylene Glycol: Discrepancy between bedside and lab lactate levels due to glycolate interference

Management Pearls* Ethanol and Ethylene Glycol: Fomepizole as first-line treatment; hemodialysis for severe cases * Methanol: Similar approach with additional focus on preventing blindness * Propylene Glycol: Monitor lactate and renal function, discontinue offending medications * Isopropyl Alcohol: Supportive care, no acidosis present

Mnemonics for Toxic AlcoholsMEGA GAP:

  • Methanol and Ethylene Glycol: Anion Gap Acidosis with elevated Osmolar Gap
  • Isopropyl Alcohol: Isolated Osmolar Gap (no acidosis)
  • Propylene Glycol: Mimics ethylene glycol with HAGMA at high doses

Takeaway Messages* Early recognition of toxic alcohol ingestion is critical for successful management * Differentiate between toxic alcohols using anion gap, osmolar gap, and clinical presentation * Engage poison control and social work early in the process

Conclusion* Pediatric toxic alcohol ingestions are rare but potentially life-threatening * Fomepizole is a cornerstone therapy for methanol and ethylene glycol toxicity * Supportive care remains essential across all toxic alcohol ingestions

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