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Updated: Jun 13, 2026

Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling
Published on: April 7, 2015
New perspectives of infections in cardiovascular disease
1University of Toronto, Division of Infectious Diseases, St. Michaels' Hospital, 4CC 179 Cardinal Carter Wing, 30 Bond St., Toronto, Ontario, M5B 1W8, Canada.
Insights
Cardiac infections, including those affecting implants, are a growing concern. Recent advances in genomics and proteomics offer new insights into understanding and treating these heart conditions.
Area of Science:
- Cardiology
- Infectious Diseases
- Microbiology
Background:
- Infections are long-recognized causes of cardiac diseases, affecting all heart structures.
- Microbial agents are implicated in various cardiac pathologies, including pericardium, myocardium, and valves.
- Cardiac implant infections represent a growing challenge due to an aging population and increased device usage.
Purpose of the Study:
- To review advancements in understanding the pathobiology of cardiac infections over the past decade.
- To explore novel therapeutic approaches for cardiac infectious complications.
- To outline current controversies and state-of-the-art knowledge on specific conditions.
Main Methods:
- Review of recent literature focusing on genomics and proteomics in cardiac infections.
- Analysis of pathobiological mechanisms underlying various cardiac infectious diseases.
- Synthesis of information on perimyocarditis, infective endocarditis, cardiac device infections, and infectious roles in coronary artery disease.
Main Results:
- Genomic and proteomic advances have significantly improved understanding of cardiac infection pathobiology.
- New insights into the mechanisms of perimyocarditis, infective endocarditis, and cardiac device infections have emerged.
- The role of infections in coronary artery disease is an area of ongoing investigation.
Conclusions:
- Continued research into cardiac infections is crucial, particularly concerning implantable devices.
- Advances in molecular biology offer promising avenues for novel therapeutic strategies.
- A comprehensive understanding of infectious etiologies is vital for managing diverse cardiac conditions.
Abstract:
Infections have been recognized as significant causes of cardiac diseases for many decades. Various microorganisms have been implicated in the etiology of these diseases involving all classes of microbial agents. All components of the heart structure can be affected by infectious agents, i.e. pericardium, myocardium, endocardium, valves, autonomic nervous system, and some evidence of coronary arteries. A new breed of infections have evolved over the past three decades involving cardiac implants and this group of cardiac infectious complications will likely continue to increase in the future, as more mechanical devices are implanted in the growing ageing population. This article will review the progress made in the past decade on understanding the pathobiology of these infectious complications of the heart, through advances in genomics and proteomics, as well as potential novel approach for therapy.An up-to-date, state-of-the-art review and controversies will be outlined for the following conditions: (i) perimyocarditis; (ii) infective endocarditis; (iii) cardiac device infections; (iv) coronary artery disease and potential role of infections.
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