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Klebsiella oxytoca tricuspid valve endocarditis in an elderly patient without known predisposing factors
  1. Waqas Memon1,
  2. Melinda Miller2,
  3. Zonaira Shabbir3
  1. 1University of Illinois College of Medicine, Urbana, Illinois, USA
  2. 2Carle Foundation Hospital, Urbana, Illinois, USA
  3. 3University of Pikeville Kentucky College of Osteopathic Medicine, Pikeville, Kentucky, USA
  1. Correspondence to Dr Waqas Memon, waqasm03{at}


A 73-year-old man with history of nephrolithiasis was admitted after a witnessed cardiac arrest. In the emergency department, the patient had several runs of ventricular fibrillation treated with defibrillation and amiodarone infusion. Echocardiography revealed reduced ejection fraction with multiple mobile structures attached to the tricuspid valve leaflets. Due to concern for possible endocarditis, the patient was started on broad-spectrum antibiotics. On the following day, a renal ultrasound was performed for acute kidney injury followed by a non-contrast CT scan that revealed an obstructing 21 mm left-sided ureteral stone with pyohydronephrosis. He underwent emergent nephrostomy tube placement. Blood and urine cultures subsequently demonstrated the growth of Klebsiella oxytoca. A follow-up transoesophageal echocardiogram confirmed multiple mobile, hyperechoic masses consistent with vegetations. The suspected source for the endocarditis was from the pyelonephritis. The patient’s clinical condition improved after a course of intravenous antibiotics and was discharged on oral antibiotics.

  • heart failure
  • interventional cardiology
  • valvar diseases
  • resuscitation
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  • Contributors The conception of topic and interpretation of previous research was done by MM and ZS. Case report design and clinical insight along with interpretation was addressed by MM. Thorough research of previous case reports of similar nature was done by MM and ZS.

  • 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.

  • Patient consent Obtained.

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

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