Mitral paravalvular abscess with left ventriculo-atrial fistula in a patient on dialysis

透析患者出现二尖瓣旁脓肿伴左心室-心房瘘

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Abstract

BACKGROUND: Infective endocarditis in hemodialysis patients is challenging but is becoming more common recently. CASE REPORT: A 64-year-old man with end-stage renal disease on hemodialysis presented with infective endocarditis of mitral valve and coronary artery disease after commencing training for home hemodialysis. During a course of antibiotic treatment the patient developed left ventriculo-atrial fistula due to mitral paravalvular abscess. Abscess debridement followed by reconstruction of the mitral annulus with fresh autologous pericardial patch and mitral valve replacement using a mechanical prosthesis with concomitant coronary artery bypass grafting was performed successfully. CONCLUSION: Timely diagnosis, proper antibiotic treatment and early surgical intervention including aggressive debridement should improve the outcome of this high-risk disease.

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