Aggressive Staphylococcus lugdunensis Endocarditis in a Young Healthy Patient: A Case Report

Steven Douedi, Vandan D. Upadhyaya, Aref Obagi, Mohammad Hossain

Abstract


Staphylococcus lugdunensis (S. lugdunensis) is a β-hemolytic coagulase-negative staphylococcus causing skin and soft tissue infections with an increasing incidence. Commonly found as normal flora in the perineal region, S. lugdunensis has been found in rare cases of infective endocarditis causing increased morbidity and mortality. We present a case of a previously healthy young male diagnosed with S. lugdunensis-caused infective endocarditis. A 31-year-old male with no significant past medical history, who presented to the emergency department with acute onset crushing substernal chest pressure and dyspnea with profuse sweating following 1-week-long febrile illness and malaise. The initial electrocardiogram (ECG) showed diffuse ST depressions in all precordial leads, consistent with an acute coronary syndrome. Emergent transthoracic echocardiogram revealed an ejection fraction (EF) of 45% with severe aortic insufficiency with emanating from a torn right coronary cusp. The patient had a cardiac arrest, and recovery of spontaneous circulation (ROSC) was obtained after 13 min. He subsequently underwent mechanical aortic valve replacement surgery. The native valve specimen cultures grew S. lugdunensis. Postoperatively and after a long course of antibiotics, the patient fully recovered without complications. S. lugdunensis is a common organism with increasing incidence that can lead to significant morbidity and mortality if not properly detected and treated. We hope this case presentation would support emergency valve replacement surgery in patients with S. lugdunensis-suspected infective endocarditis.




Cardiol Res. 2020;11(3):192-195
doi: https://doi.org/10.14740/cr1037


Keywords


Staphylococcus lugdunensis; Infective endocarditis; Aortic valve surgery

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