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Cutaneous vasculitis associated with fluoroquinolones

G Maunz1, T Conzett, W Zimmerli

  • 1Medical University Clinic, Kantonsspital, 4410, Liestal, Switzerland.

Infection
|August 12, 2009
PubMed

Insights

Cutaneous vasculitis can be a serious adverse drug reaction to fluoroquinolone antibiotics. Stopping the antibiotic often resolves the skin inflammation, but clinicians must be vigilant for this potentially fatal condition.

Area of Science:

  • Dermatology
  • Pharmacology
  • Internal Medicine

Background:

  • Cutaneous vasculitis involves inflammation of skin blood vessel walls.
  • It presents a broad differential diagnosis, including adverse drug reactions.
  • Antibiotic therapy is a common cause of drug-induced vasculitis.

Observation:

  • Three patients developed isolated cutaneous vasculitis during antibiotic treatment for bacterial infections.
  • All patients received fluoroquinolones (ciprofloxacin or levofloxacin) combined with other antibiotics.
  • Lesions resolved after discontinuation of the fluoroquinolone antibiotic.

Findings:

  • Fluoroquinolone-associated cutaneous vasculitis is a distinct clinical entity.
  • It can manifest as an isolated, self-limiting disorder.
  • In severe cases, it may be part of a systemic vasculitis or a life-threatening condition.
  • Leukocytoclastic small-vessel vasculitis was histologically confirmed in one patient.

Implications:

  • Clinicians must consider fluoroquinolone-associated cutaneous vasculitis in patients presenting with skin lesions during antibiotic therapy.
  • Prompt recognition and discontinuation of the offending fluoroquinolone are crucial for patient recovery.
  • Failure to identify and cease the antibiotic may lead to fatal outcomes.

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