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Gastric ventilation: a new approach to metal phosphide fumigant ingestion.

Abstract

INTRODUCTION: Phosphine is absorbed rapidly across mucous membranes causing systemic poisoning including functional cellular hypoxia. Following ingestion of metal phosphides, continuous absorption of phosphine could contribute to the intractable systemic manifestations.
CASE REPORT: A 16-year-old male was admitted to hospital 1-hour post-ingestion of two fresh 3 g tablets of aluminum phosphide 56%. He complained of abdominal discomfort and burning pain, thirst, nausea, and foul-odor vomitus. The silver nitrate test was positive by exhaled breath and gastric content, confirming exposure to phosphine. Initial therapy included intravenous fluids and gastric lavage with sodium bicarbonate and potassium permanganate. Hypotension, severe agitation and tachypnea prompted endotracheal intubation and treatment with gastric ventilation. This procedure involves insertion of a nasogastric tube to insufflate air into the distal part of the stomach. An orogastric tube is inserted near the gastro-esophageal junction as an inflow air tract. Ventilation was provided by blowing fresh air using an air-pump into the naso-gastric tube and phosphine contaminated air escaped via the wide-bore orogastric tube; the treatment continued for several hours. Although there was some evidence of progression of poisoning, including metabolic acidosis, arterial fibrillation, and mild gastrointestinal bleeding, the patient subsequently recovered and was discharged 6 days later with no persisting complications. This case report discusses probable benefit, availability, and simplicity of this treatment. We suggest that further clinical trials are required to confirm that this treatment improves outcomes in this highly toxic poisoning.

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  • Publisher Full Text
  • Authors

    Hassanian-Moghaddam H, Shahbazi A

    Institution

    Clinical Toxicology, Loghman-Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran. hassanian@sbmu.ac.ir

    Source

    Clinical toxicology (Philadelphia, Pa.) 50:5 2012 Jun pg 435-7

    MeSH

    Adolescent
    Aluminum Compounds
    Breath Tests
    Gastric Lavage
    Humans
    Insufflation
    Intubation, Gastrointestinal
    Male
    Pesticides
    Phosphines
    Potassium Permanganate
    Silver Nitrate
    Sodium Bicarbonate
    Stomach
    Suicide, Attempted
    Treatment Outcome

    Pub Type(s)

    Case Reports
    Journal Article

    Language

    eng

    PubMed ID

    22506828