Document Detail


Acetaminophen-induced anion gap metabolic acidosis and 5-oxoprolinuria (pyroglutamic aciduria) acquired in hospital.
MedLine Citation:
PMID:  15983968     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A rare cause of high anion gap acidosis is 5-oxoproline (pyroglutamic acid), an organic acid intermediate of the gamma-glutamyl cycle. Acetaminophen and several other drugs have been implicated in the development of transient 5-oxoprolinemia in adults. We report the case of a patient with lymphoma who was admitted for salvage chemotherapy. The patient subsequently developed fever and neutropenia and was administered 20.8 g of acetaminophen during 10 days. During this time, anion gap increased from 14 to 30 mEq/L (14 to 30 mmol/L) and altered mental status developed. After usual causes of high anion gap acidosis were ruled out, a screen for urine organic acids showed 5-oxoproline levels elevated at 58-fold greater than normal values. Predisposing factors in this case included renal dysfunction and sepsis. Clinicians need to be aware of this unusual cause of anion gap acidosis because it may be more common than expected, early discontinuation of the offending agent is therapeutic, and administration of N -acetylcysteine could be beneficial.
Authors:
Benjamin D Humphreys; John P Forman; Kambiz Zandi-Nejad; Hasan Bazari; Julian Seifter; Colm C Magee
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Publication Detail:
Type:  Case Reports; Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  American journal of kidney diseases : the official journal of the National Kidney Foundation     Volume:  46     ISSN:  1523-6838     ISO Abbreviation:  Am. J. Kidney Dis.     Publication Date:  2005 Jul 
Date Detail:
Created Date:  2005-06-28     Completed Date:  2005-11-03     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8110075     Medline TA:  Am J Kidney Dis     Country:  United States    
Other Details:
Languages:  eng     Pagination:  143-6     Citation Subset:  IM    
Affiliation:
Department of Medicine, Renal Division, Brigham and Women's Hospital, Boston, MA, USA. bhumphreys@partners.org
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MeSH Terms
Descriptor/Qualifier:
Acetaminophen / adverse effects*,  therapeutic use
Acid-Base Equilibrium / drug effects*
Acidosis / chemically induced,  etiology*
Adult
Analgesics, Non-Narcotic / adverse effects*,  therapeutic use
Antineoplastic Combined Chemotherapy Protocols / adverse effects,  therapeutic use
Bicarbonates / blood,  therapeutic use
Candidiasis / etiology
Chlorides / blood
Cytarabine / administration & dosage
Etoposide / administration & dosage
Fatal Outcome
Fever / drug therapy,  etiology
Humans
Ifosfamide / administration & dosage,  adverse effects
Kidney Tubular Necrosis, Acute / chemically induced,  complications*,  drug therapy
Lymphoma, Follicular / complications
Lymphoma, Large B-Cell, Diffuse / complications,  drug therapy
Male
Mesna / administration & dosage
Neutropenia / complications
Polycystic Kidney, Autosomal Dominant / complications
Pyrrolidonecarboxylic Acid / urine*
Salvage Therapy
Systemic Inflammatory Response Syndrome / etiology
Grant Support
ID/Acronym/Agency:
F32 DK069037-01/DK/NIDDK NIH HHS
Chemical
Reg. No./Substance:
0/Analgesics, Non-Narcotic; 0/Bicarbonates; 0/Chlorides; 103-90-2/Acetaminophen; 147-94-4/Cytarabine; 19767-45-4/Mesna; 33419-42-0/Etoposide; 3778-73-2/Ifosfamide; 98-79-3/Pyrrolidonecarboxylic Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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