Document Detail

Hepatotoxicity in Obese Versus Nonobese Patients With Acetaminophen Poisoning Who Are Treated With Intravenous N-Acetylcysteine.
MedLine Citation:
PMID:  24263163     Owner:  NLM     Status:  Publisher    
There is limited information regarding the outcomes associated with acetaminophen (APAP) poisoning in obese individuals. It is possible that patients who are obese are more susceptible to APAP-induced liver injury, thereby diminishing the efficacy of antidotes such as N-acetylcysteine (NAC). We evaluated the outcomes associated with APAP poisoning in obese versus nonobese adults who are treated with intravenous (IV) NAC. This was a retrospective cohort study conducted in a tertiary care, academic medical center. Adult patients with APAP toxicity, who were treated with IV NAC between June 2005 and August 2012, were included. The patients were categorized into 2 groups based on their body mass index (BMI): (1) obese (BMI ≥ 30.0 kg/m) versus (2) nonobese (BMI 18.5-24.9 kg/m). The primary outcome measure was the proportion of patients who developed hepatotoxicity (aspartate aminotransferase or alanine aminotransferase >1000 IU/L). A total of 80 patients were included in the final cohort (40 in each group). The median BMI for the obese and nonobese groups was 34.5 kg/m [interquartile range (IQR) 31.4-40.2] and 22.4 kg/m (IQR 21.2-23.9), respectively (P < 0.001). Other than more white patients being present in the nonobese group, there were no other baseline differences between groups with regard to demographics, liver function tests, or coagulation studies. Obese patients received a median IV NAC dose of 291.5 mg/kg (IQR 270.8-300.7) compared with 300 mg/kg (IQR 287.8-301.9) in the nonobese group (P = 0.07). Hepatotoxicity occurred in 27.5% of the obese patients and 37.5% of the nonobese patients (P = 0.34). No adverse drug effects were noted in either group. Obese and nonobese patients being treated with IV NAC for APAP toxicity experienced similar rates of hepatotoxicity.
John J Radosevich; Asad E Patanwala; Brian L Erstad
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-11-20
Journal Detail:
Title:  American journal of therapeutics     Volume:  -     ISSN:  1536-3686     ISO Abbreviation:  Am J Ther     Publication Date:  2013 Nov 
Date Detail:
Created Date:  2013-11-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9441347     Medline TA:  Am J Ther     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
1Maricopa Medical Center, Pharmacy Department, Phoenix, AZ; and 2College of Pharmacy, Department of Pharmacy Practice and Science, The University of Arizona, Tucson, AZ.
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