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Rare case of implantable cardioverter defibrillator infection caused by Stenotrophomonas maltophilia and Pantoea calida
  1. Mustafa Ajam1,
  2. Mohamed Shokr2,
  3. Firas Ajam3 and
  4. Randy Lieberman2
  1. 1 Internal Medicine, Detroit Medical Center, Detroit, Michigan, USA
  2. 2 Cardiology, DMC/Wayne State University, Detroit, Michigan, USA
  3. 3 Internal Medicine, Jersey Shore University Medical Center, Neptune City, New Jersey, USA
  1. Correspondence to Dr Mustafa Ajam, m_ijam{at}


Despite the numerous advancements in cardiac implantable electronic defibrillator (CIED) designs and implantation techniques, device-related infections continue to represent significant morbidity and mortality. Although Gram-positive bacteria remain the most commonly reported organisms, various other bacterial families have been reported. We describe a 61-year-old patient with a history of non-ischaemic cardiomyopathy who presented with implantable cardioverter defibrillator pocket infection due to Stenotrophomonas maltophilia and Pantoea calida that developed a few days following the device generator replacement. Early device explantation, tissue sampling and initiation of sensitivity-directed antibiotics are necessary steps for early diagnosis and management of such CIED-related infections. S. maltophilia and P. calida should be added to the expanding list of the causative organisms behind CIED-related infections. Our case and available literature demonstrated excellent sensitivity of these two organisms to sulfamethoxazole-trimethoprim treatment.

  • infectious diseases
  • pacing and electrophysiology

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  • Contributors MA, MS, FA: drafting the manuscript. MA, MS, FA: revision. RL: revision and final approval.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Patient consent for publication Obtained.

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