[Time limits for gastrointestinal decontamination in poisoning]

Area of Science:

• Toxicology
• Emergency Medicine
• Pharmacology

Background:

• Massive overdoses of central nervous system depressants, such as benzodiazepines and opioids, pose significant clinical challenges.
• Gastric decontamination is a cornerstone of managing acute poisonings, but its efficacy is often debated based on time since ingestion.

Observation:

• A 70-year-old male presented after a large intentional overdose of benzodiazepines and morphine.
• Initial management included flumazenil and naloxone, but gastric lavage was deemed unsafe due to the patient's condition.
• The patient developed significant respiratory insufficiency and a low Glasgow Coma Scale (GCS) score (5) 24 hours post-admission.

Findings:

• Following intubation, substantial tablet material was aspirated, and activated charcoal was administered.
• The patient required 24 hours of mechanical ventilation and subsequently developed aspiration pneumonia.
• This clinical course suggests potential benefit from delayed gastric emptying interventions.

Implications:

• This case challenges the conventional time-based restrictions for performing gastric emptying in massive overdoses.
• It underscores the need for individualized assessment of gastric decontamination risks and benefits in severe poisoning.
• Further research may be warranted to define optimal timing and indications for gastric emptying in complex overdose scenarios.