Introduction: Cardiac necrotizing soft tissue infections (NSTI) have been scarcely reported in the literature. We present a rare case of a disseminated NSTI with myocardial involvement secondary to embolic phenomena from emphysematous infective endocarditis (IE). Case presentation: 73-year-old female on dialysis with atrial fibrillation and diabetes mellitus was transferred for multifocal strokes evidenced on magnetic resonance imaging. Presented with leukocytosis, lactic acidosis, acute liver failure, and right upper extremity (RUE) NSTI. She was started on antibiotics and vasopressors and taken emergently to the operating room for RUE amputation. Following surgery, an electrocardiogram revealed anterior STEMI. Bedside transthoracic echocardiogram noted a severely reduced ejection fraction and a mitral valve vegetation. Computed tomography of head and chest revealed pneumomyocardium, portal venous gas, and pneumocephalus. Blood cultures revealed growth of Clostridium perfringens. With severe multi-organ failure and a poor prognosis, comfort care was elected, and the patient expired. Figures: A: RUQ subcutaneous gas. B: Chest wall gas. C: pneumocephalus. D: pneumomyocardium. E: MV vegetation. Discussion: Septic embolization is a devastating sequela of IE. Vegetations > 1cm have increased embolic potential and all-cause mortality. The most common site of embolization is the central nervous system; however, coronary embolization can also occur. Clostridial endocarditis is rare, despite being documented as the first cause of anaerobic IE. Mortality rate of clostridial NSTI and shock exceeds 50%. Source control and rapid identification of infection are paramount for treatment success. A multidisciplinary approach should be employed when treating Clostridial infections, specifically endocarditis. Our case highlights the need for prompt recognition of IE and the interplay of multimodal imaging in the diagnosis of disseminated infection.
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