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1.
Clin Toxicol (Phila) ; 49(1): 45-7, 2011 Jan.
Article in English | MEDLINE | ID: mdl-21288151

ABSTRACT

CONTEXT: In the absence of a rapid serum methanol level estimation, it is difficult to assess the risk from unintentional childhood ingestion of model fuels containing methanol and nitromethane (MFNM). Previous reports have documented false elevations of serum creatinine from the nitromethane in these fuels, suggesting its utility as a readily available marker of significant methanol ingestion. METHOD: We performed a 2-year retrospective chart review of cases of ingestion of MFNM in children, with both a methanol level and measured creatinine level. RESULTS: Seven children, ages 19 months to 3 years, ingested MFNM. All seven children were seen in a hospital and had measured methanol and creatinine levels. All blood samples for methanol and creatinine were drawn within 3 hours of ingestion with methanol estimation delayed up to 24 hours. Creatinine ranged from 0.39 (0.034 mmol/l) to 10.7 mg/dl (0.95 mmol/l). All methanol levels were <10 mg/dl (0.31 mmol/l) or reported as negative. Fomepizole was initiated empirically in two patients due to delay in obtaining methanol analysis results. DISCUSSION: Transient elevations of creatinine occurred in five of the seven children. Blood urea nitrogen was within normal limits, and there was no history of renal impairment in these children, suggesting the elevated creatinine was mostly related to nitromethane ingestion. No child had a significantly elevated methanol level. CONCLUSION: Elevated creatinine level, as measured by Jaffe colorimetric method, is not a reliable marker for elevated methanol levels after unintentional ingestion of MFNM.


Subject(s)
Creatinine/blood , Methane/analogs & derivatives , Methanol/poisoning , Nitroparaffins/poisoning , Biomarkers/blood , Child, Preschool , Humans , Infant , Methane/poisoning , Retrospective Studies
2.
Pediatr Blood Cancer ; 51(6): 798-801, 2008 Dec.
Article in English | MEDLINE | ID: mdl-18819124

ABSTRACT

BACKGROUND: Thromboembolism in children is typically treated with unfractionated heparin (UH) or low molecular weight heparin (LMWH). Both rely on antithrombin (AT) for their action. In addition, heparin-induced thrombocytopenia (HIT) is a potentially serious complication of heparin use in children. Bivalirudin or other direct thrombin inhibitors may be a useful alternative to heparins in treating thrombosis in children. PROCEDURE: We report a retrospective review to assess the efficacy and safety of bivalirudin in pediatric patients with thrombosis. RESULTS: Sixteen children received bivalirudin for thrombosis or prevention of thrombosis at the Children's Hospital of Illinois from January 2005 to January 2007. Patients received a bolus dose of 0.25 mg/kg followed by a continuous infusion (0.16 +/- 0.07 mg kg(-1) hr(-1)) titrated to 1.5-2.5 times the baseline activated partial thromboplastin time (aPTT). Positive correlation between the bivalirudin average infusion rate and aPTT was observed in twelve patients. Ultrasonographic evidence of thrombus regression was noted at 72 hr in 10 of 10 patients. One patient experienced hematuria after catheterization of the urethra. CONCLUSION: Bivalirudin was effective and well-tolerated in these patients. Further studies should be conducted to better define safety and efficacy of bivalirudin in pediatric patients.


Subject(s)
Anticoagulants/therapeutic use , Antithrombins/therapeutic use , Peptide Fragments/therapeutic use , Thrombocytopenia/drug therapy , Thrombosis/drug therapy , Adolescent , Child , Child, Preschool , Female , Heparin/adverse effects , Hirudins , Humans , Infant , Infant, Newborn , Male , Recombinant Proteins/therapeutic use , Retrospective Studies , Thrombocytopenia/chemically induced , Thrombosis/etiology , Treatment Outcome
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