# Kocuria kristinae-Induced Infective Endocarditis: Unveiling an Emerging Threat in Clinical Practice

## TL;DR

This paper discusses Kocuria kristinae as an emerging cause of infective endocarditis, emphasizing its diagnostic challenges and the need for increased clinical awareness.

## Contribution

The paper highlights Kocuria kristinae as an under-recognized pathogen in infective endocarditis and underscores the need for improved diagnostic and treatment strategies.

## Key findings

- Kocuria kristinae-induced infective endocarditis is often delayed in diagnosis due to subtle symptoms and biofilm formation.
- Predisposing factors include cardiac abnormalities, prosthetic valves, and immunocompromised states.
- Antimicrobial susceptibility patterns and optimal treatment strategies for Kocuria kristinae remain unclear.

## Abstract

Infective endocarditis (IE) remains a formidable challenge in clinical practice due to several causative agents, each presenting with unique diagnostic and therapeutic dilemmas. Kocuria kristinae, a coagulase-negative, catalase-positive Gram-positive coccus, has recently emerged as an uncommon but increasingly recognized pathogen in the cause of IE. This case report highlights the clinical characteristics, risk factors, and challenges associated with Kocuria kristinae-induced IE. We conducted a comprehensive literature review and identified several case reports on Kocuria kristinae as a causative agent. Due to its indolent nature and the subtle presentation of symptoms, along with its ability to form biofilms, delayed diagnosis of Kocuria is often seen, thereby emphasizing the need for heightened clinical suspicion. The predisposing factors for Kocuria kristinae infection include underlying cardiac abnormalities, prosthetic heart valves, and immunocompromised states.

Additionally, antimicrobial susceptibility patterns and optimal treatment strategies remain unclear, warranting further investigation. This abstract presents the case of a 75-year-old male with IE secondary to Kocuria kristinae on a prosthetic mitral valve. We aim to highlight the need for increased awareness among clinicians to facilitate early recognition and prompt initiation of targeted therapeutic interventions. Unraveling the intricacies of Kocuria kristinae's pathogenicity is crucial for refining diagnostic approaches and optimizing patient outcomes.