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[Time limits for gastrointestinal decontamination in poisoning].

Vibeke von Westphal¹, Peter Jacobsen

¹Rue 31, DK-5900 Rudkøbing. vvw@dadlnet.dk

Ugeskrift for Laeger

|March 5, 2009

Summary

This case highlights that gastric decontamination may be beneficial even beyond typical timeframes in massive overdoses. Delayed gastric emptying interventions can be life-saving in complex poisoning scenarios.

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.

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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.