Table 5

Author, date, and countryPatient groupStudy type (level of evidence)OutcomesKey resultsStudy weaknesses
Borron SW et al, 1999, France38 acute poisonings of which 11 patients had plasma ethylene glycol concentrations of 0.20 g/l or more.Prospective observationalDeath1/38 patients diedSimple case series-all patients received fomepizole, no controls
Serum creatinine0/7 patients who had a normal renal function at presentation had no further deterioration in serum creatinineDetails regarding patient demographics and outcomes inadequate
Side effects from fomepizole4/38 experiencedNo account taken of confounding alcohol ingestion
Brent J et al, 1999, USA23 acute poisonings of which 19 met inclusion criteria including a plasma ethylene glycol concentration of >20 mg per decilitreProspective observationalDeath1/19 patients diedSimple case series studying the metabolic progress of patients
Serum creatinine17/19 underwent haemodialysis as per study protocol, 3/19 had an increased serum creatinine at last study readingAll patients received fomepizole - no controls
Ethylene glycol metabolitesAll patients demonstrated progressive reduction in blood glycolate concentrationAuthors cannot conclude that fomepizole is safe and effective
Cranial neuropathies0/19 patients
Side effects2 patients had seizures, 2 patients experienced headaches, 2 patients became bradycardic