# A Case of Corynebacterium diphtheriae Native Mitral and Tricuspid Valve Infective Endocarditis Complicated by Shower Emboli

## TL;DR

This paper reports a rare case of heart valve infection caused by Corynebacterium diphtheriae in a healthy patient, emphasizing its severe complications.

## Contribution

The novelty lies in presenting a rare case of C. diphtheriae infective endocarditis in an immunocompetent individual.

## Key findings

- C. diphtheriae caused native mitral and tricuspid valve endocarditis in an immunocompetent patient.
- The infection led to severe complications, including shower emboli.
- The case highlights the high mortality risk associated with C. diphtheriae endocarditis.

## Abstract

Infective endocarditis is a rare phenomenon that may have devastating consequences. While uncommon, the spectrum of causative organisms can include Corynebacterium species. Corynebacterium diphtheriae endocarditis bears a high potential for systemic complications and overall mortality. We present a case of mitral and tricuspid native valve endocarditis caused by C. diphtheriae in an immunocompetent patient and highlight the severe manifestations of this condition.