Linezolid-induced angioedema and urticaria in a patient with renal failure.

نویسندگان

  • Meifang Yang
  • Min Xu
چکیده

Linezolid has demonstrated excellent activity against drugresistant Gram-positive bacteria infections, such as staphylococci, streptococci, and enterococci.1 However, linezolid is associatedwithawide rangeof adverse effects suchasnausea, diarrhea, vomiting, headache, and serotonin-like syndrome.2 Hematologic side effects, such as thrombocytopenia and anemia, can also occur after linezolid treatment.2 Nevertheless, angioedema and urticaria due to linezolid have not been reported in previous literature. Here we report a case of a patient who developed angioedema and urticaria after linezolid treatment. A 48-years old Chinese man was admitted to our hospital with complaints of fever for three days.Hehadbeendiagnosed with chronic kidney disease (CKD) caused by hypertensive nephropathy for five years, and began peritoneal dialysis three years prior. He had no history of allergy. He was treated with cefperazone-sulbactam before we got the culture results. Three days later, ascite culture was positive for vancomycinsensitive Enterococcus faecium. Considering the safety and effectiveness of antibiotic therapy, he was started on 600mg linezolid intravenous (i.v.) twice daily.Meanwhile,we removed the tube for peritoneal dialysis and changed it to hemodialysis. 12h after linezolid therapy, he suffered serious swelling of the bilateral eyelids and urticaria in the body. 12h later, swelling aggravated, and blood test showed that eosinophilia had increased to 34%. Linezolid was discontinued; cetirizine and one dose of dexamethasone (5mg) were prescribed. We changed the antibiotic to vancomycin for enterococci abdominal infection. 12h later, the swelling was in remission and the urticaria had disappeared. 24h after the withdrawal of linezolid treatment, the patient was totally relieved from swelling of the eyelids and urticaria. Eosinophilia gradually declined to normal levels after ten days. We attributed the cause of angioedema and urticaria to linezolid treatment because these side effects developed after the treatment with linezolid, but resolved quickly after the withdrawal of linezolid treatment. The other medications were continued, including cefperazone-sulbactam. There was no evidence indicating suspicious food intake at the time the rash developed. Based on the Naranjo adverse drug reaction probability scale, the calculated score for a treatment-related adverse event if angioedema and urticaria due to linezolidwas 8 out of amaximumof 13 points, indicating that it is a probable cause.3 Acquired angioedema may be caused by drugs, such as antibiotics, nonsteroidal anti-inflammatory drugs, angiotensin-converting enzyme inhibitors, and radiocontrast media.4,5 It can be an allergic (IgE-mediated) or non-allergic hypersensitivity reaction, with similar clinical presentation.5 However, the mechanism of drug-induced angioedema and urticaria remains unclear. In summary, this is the first report of the adverse effects of angiodema and urticaria following linezolid treatment. We report this case to increase clinicians’ awareness of additional adverse effects of linezolid, especially for patients with renal dysfunction, who have increased risk of developing these side effects.

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عنوان ژورنال:
  • The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases

دوره 16 6  شماره 

صفحات  -

تاریخ انتشار 2012