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Coronary artery stent infection.

R S Dieter1

  • 1University of Wisconsin Madison, Department of Medicine, USA.

Clinical Cardiology
|November 30, 2000
PubMed
Summary

Coronary artery stent infections are rare but deadly. Early detection of fever and angina in patients with stents is crucial for prompt treatment, though outcomes remain poor.

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Area of Science:

  • Cardiology
  • Infectious Diseases
  • Medical Device Research

Background:

  • Coronary artery stenting is a common procedure, with 40-60% of interventional procedures involving stents.
  • Atherosclerosis, the underlying cause of coronary artery disease, may have an infectious etiology.
  • Stenting introduces a foreign body into an inflamed arterial environment, potentially increasing infection risk.

Purpose of the Study:

  • To review the literature on coronary artery stent infections.
  • To provide clinicians with data on prevalence, clinical presentation, and treatment options.
  • To highlight the high mortality associated with these rare infections.

Main Methods:

  • Comprehensive literature search for reported cases of coronary artery stent infection.
  • Analysis of clinical presentations, causative organisms, and treatment outcomes.
  • Review of existing data on prevalence and long-term risks.

Main Results:

  • Only four cases of coronary artery stent infection were found in the literature.
  • Infections presented with fever and post-intervention angina days to weeks after stenting.
  • Pseudomonas aeruginosa was identified in two cases, an unusual pathogen for catheter-related infections.
  • Surgical removal of the infected stent was common, but the majority of patients died despite aggressive treatment.

Conclusions:

  • Coronary artery stent infection is a rare but highly fatal complication.
  • Clinicians must maintain a high index of suspicion for stent infection in patients presenting with fever, recurrent angina, or bacteremia post-procedure.
  • Current low infection rates do not support routine prophylactic antibiotics for high-risk procedures.

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