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Infective endocarditis with negative blood cultures in mitral valve prolapse. Case presentation

Abstract:

Introduction: Infective endocarditis continues to be a great challenge for modern medicine although it is not a frequent entity. Objective: We present a case of an undiagnosed previous valve lesion without symptoms. The early diagnosis of endocarditis was made at the hospital level. Case Presentation: A 20-year-old woman, smoker, with previous history of good health was admitted to the medical ward on January 21, 2020. The patient reported continuous fever (38-38,50 C) throughout the day, with spikes up to 400 C and intermittent chills. She has been having these symptoms for a month. Rhythmic heart sounds and high intensity tachycardia and systolic click with strong systolic displacement of regurgitation grade IV/VI audible in mitral area with fremitus radiating to the armpit were heard. Anemia, accelerated ESR, leukocytosis with left deviation, and negative blood cultures were confirmed. The echocardiogram showed a mitral valve prolapse with regurgitation of anterior and posterior valves that occupies all the left atrium until its top. There was multiple vegetation in the atrial side of the posterior leaflet of the mitral valve; the greatest is 7 x 3 mm. Conclusions: The clinical method is essential in the diagnostic process performed in clinical practice supported by diagnostic means, as in the current case.