Pyroglutamic Acidosis - An Underrecognised Entity Associated with Acetaminophen Use.

Rom J Anaesth Intensive Care

Department of Medicine & Geriatrics/ICU, Caritas Medical Centre, 111 Wing Hong Street, Sham Shui Po, Hong Kong Special Administrative Region, Kowloon, China.

Published: April 2023

Pyroglutamic acidosis (PGA) is an underrecognized entity characterised by raised anion gap metabolic acidosis (RAGMA) and urinary hyper-excretion of pyroglutamic acid. It is frequently associated with chronic acetaminophen (APAP) ingestion. We report the case of a 73-year-old man with invasive pulmonary aspergillosis treated with voriconazole and APAP for analgesia with a cumulative dose of 160 g over 40 days. PGA was suspected as he developed severe RAGMA and common causes were excluded. Diagnosis was confirmed via urinary organic acid analysis which showed significant hyper-excretion of pyroglutamic acid. APAP was discontinued, and N-acetylcysteine (NAC) was administered. His RAGMA rapidly resolved following treatment.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10448446PMC
http://dx.doi.org/10.2478/rjaic-2023-0004DOI Listing

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