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You are here: Contents > 2016 > Volume 25 Number 1 January 2016 > MISCELLANEOUS > Abiotrophia defectiva Endocarditis Complicated by Ventricular Tachycardia

Abiotrophia defectiva Endocarditis Complicated by Ventricular Tachycardia

Kyriacos Mouyis1, Sophia Metaxa1, Constantinos Missouris1,2

1Frimley Health NHS Foundation Trust, 2International Centre for Circulatory Health, NHLI, Imperial College, London, United Kingdom

A 78-year-old man was admitted to the authors’ hospital with a short history of shortness of breath and pyrexia. He had long-standing moderate mitral regurgitation and stable coronary artery disease. Blood cultures grew Abiotrophia defectiva coccobaccili. Transesophageal echocardiography confirmed the diagnosis of mitral valve endocarditis that necessitated treatment with intravenous benzylpenicillin and gentamicin for six weeks. At nine days after admission the patient developed several episodes of self-limiting monomorphic ventricular tachycardia, without ischemic cardiac pain, associated with hemodynamic compromise requiring


treatment with intravenous amiodarone and inotropic support in the Intensive Care Unit. The patient made an uneventful recovery. This case report demonstrates that patients with A. defective endocarditis may be associated with life-threatening ventricular tachycardia, and more so if they have underlying coronary artery disease. Hence, these patients are better managed in the Coronary Care Unit with continuous electrocardiogram monitoring, especially in the early stages of the antibiotic treatment.

The Journal of Heart Valve Disease 2016;25:114-115

Abiotrophia defectiva Endocarditis Complicated by Ventricular Tachycardia

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