Author:
HEYSELBERGHS B.,WAELKENS B.,KINDT K.,MEERSSEMAN P.
Abstract
A patient saved by alcohol
The medical history of a 43-year-old female patient with auto-intoxication of ethylene glycol is reported. Ethylene glycol is a toxic alcohol leading to severe complications if not treated early.
Ethylene glycol itself is relatively nontoxic, however life-threatening toxicity appears after metabolization in the liver. These toxic metabolites lead to metabolic acidosis, renal failure, multiple organ failure and death. A quick diagnosis and therapeutic management are important to avoid formation of the metabolites.
Serum drug levels give certainty regarding diagnosis, but are rarely available in time to guide management. There is often a strong suspicion or clear history of auto-intoxication. Shortly after large ingestions, patients may present with sedation or inebriation and have a large osmolar gap, but minimal acidosis. After several hours a profound metabolic acidosis with high anion gap will be present.
Management involves supportive care, administration of sodium bicarbonate to correct systemic acidosis, inhibition of the enzyme alcohol dehydrogenase with either fomepizole or ethanol, haemodialysis and treatment with cofactors to optimize nontoxic metabolic pathways.
Methanol poisoning is also discussed in this article, as methanol is another toxic alcohol with a similar therapeutic management.
Reference15 articles.
1. 1. Sivilotti MLA, Burns MJ, McMartin KE, Brent J. Toxicokinetics of ethylene glycol during fomepizole therapy: Implications for management. Ann Emerg Med 2000; 36: 114-125.
2. 2. Hess R, Bartels MJ, Pottenger LH. Ethylene glycol: an estimate of tolerable levels of exposure based on a review of animal and human data. Arch Toxicol 2004; 78: 671-680.
3. 3. Tintinalli JE, Stapczynski JS, Ma OJ, Yealy DM, Meckler GD, Cline DM. Tintinalli’s emergency medicine - a comprehensive study guide. 8th Edition. New York: McGraw-Hill Education, 2016.
4. 4. Van Moerkercke W, Leys M, Meersseman P. Encephalopathy and severe metabolic acidosis in a schizophrenic patient. Clin Toxicol 2010; 48: 160-161.
5. 5. Gennari FJ. Serum osmolality - uses and limitations. N Engl J Med 1984; 310: 102-105.