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  • Title: Hemodialysis as adjunctive therapy for severe acetaminophen poisoning: a case report.
    Author: Wu ML, Tsai WJ, Deng JF, Yang CC.
    Journal: Zhonghua Yi Xue Za Zhi (Taipei); 1999 Dec; 62(12):907-13. PubMed ID: 10634007.
    Abstract:
    Acetaminophen overdose is a common intoxication in daily practice the standard treatment is N-acetylcysteine (NAC) antidotal therapy for possible poisoning. However, dialysis procedures can remove the drug from the body effectively. We describe a case of acetaminophen overdose that was treated with both hemodialysis (HD) and NAC due to severe intoxication and slow drug clearance. A 37-year-old woman attempted suicide by ingestion of 100 tablets (500 mg each) of acetaminophen, and presented with vomiting, hematemesis and abdominal pain. The patient had elevated liver enzymes, coagulation defects, thrombocytopenia a high serum acetaminophen level (201 mg/l at 12 hours post-ingestion) with a prolonged half-life. Oral NAC was given; however, it was ineffective due to severe vomiting and hematemesis. HD as adjunctive therapy was initiated at 19 hours post-ingestion. HD reduced the serum acetaminophen level from 102.77 to 35.77 mg/l. Severe hepatic injury, bacteremia and pancytopenia were noted in the following days. The patient later recovered after treatment with NAC, HD and intensive supportive care. HD removed 66% of the total acetaminophen body burden during a single four-hour session, increased the clearance by 2.75-fold and shortened the half-life from 7.2 hours to 2.6 hours during HD. Through NAC therapy is the standard regimen for acetaminophen poisoning, in the severely poisoned patient who cannot tolerate NAC therapy, HD may be used as adjunctive therapy to enhance the elimination of acetaminophen.
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