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Ethylene glycol (C₂H₆O₂), a toxic alcohol commonly found in automotive antifreeze, de-icing solutions, and industrial coolants, can cause severe toxicity when ingested. Due to its sweet taste, it is often consumed accidentally or intentionally, leading to life-threatening consequences such as metabolic acidosis, acute kidney injury (AKI), and mortality. Prompt diagnosis and early treatment with antidotes such as fomepizole or ethanol, combined with hemodialysis, are essential in preventing severe outcomes.

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Ethylene glycol (EG) is an organic compound used in antifreeze. In 2020 alone, there were 5,277 EG exposures, with only 617 reported as intentional ingestions. Therefore, encountering EG toxicity is rare; however, it is essential to identify it promptly based on a focused history, exam, and rapid identification of commonly associated EG-induced metabolic derangements.

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Background: Antifreeze poisoning is potentially life-threatening and often requires multiple antidotal therapies and hemodialysis. Ethylene or propylene glycol toxicity is commonly caused by antifreeze ingestion. However, ingestion of antifreeze is typically not associated with methemoglobinemia.

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[Four cases of acute ethylene glycol poisoning].

Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi

June 2022

Department of Occupational Medicine and Toxicology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China.

Ethylene glycol is the main component of antifreeze, due to its special sweetness, it is easy to cause misuse. In this paper, the clinical data of 4 cases of acute ethylene glycol poisoning admitted to Beijing Chao-Yang Hospital from August 2016 to August 2021 were retrospectively analyzed to explore the clinical characteristics of acute ethylene glycol poisoning cases. Early and accurate assessment of the disease and early hemodialysis treatment is the key to cure acute ethylene glycol poisoning.

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Ethylene Glycol Intoxication Requiring ECMO Support.

Case Rep Crit Care

September 2021

Department of Medicine, Division of Nephrology, Columbia University Irving Medical Center, 630 West 168th St, New York, NY 10032, USA.

Ethylene glycol is commonly used in antifreeze, and ingestion of even a small amount can result in acute kidney injury, severe metabolic acidosis, and neurological injury. When cases are recognized early, treatment involves administration of alcohol dehydrogenase inhibitors to prevent conversion to toxic metabolites of glycolate, glyoxolate, and oxalate. In later presentations with more severe renal injury, hemodialysis may be required for clearance of toxic metabolites and supportive care for renal failure.

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