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Embolic Events in Infective Endocarditis: A Comprehensive Review
Gonzalo Cabezon1, Paloma Pulido1, Javier López Díaz1,2
1Instituto de Ciencias del Corazón (ICICOR), Cardiology Department, Hospital Clínico Universitario, 47003 Valladolid, Spain.
Insights
Infective endocarditis (IE) complications like embolic events (EEs) are unpredictable. This review explores IE management, focusing on predicting EEs and the controversial role of surgery when heart failure or uncontrolled infection are absent.
Area of Science:
- Cardiology
- Infectious Diseases
- Neurology
Background:
- Infective endocarditis (IE) is a serious condition with major complications: heart failure (HF), uncontrolled infection (UI), and embolic events (EEs).
- While HF and UI are well-studied indications for cardiac surgery, embolic events (EEs) present unique challenges due to their unpredictable nature and potential for hemorrhagic transformation.
- Optimal management of IE, particularly the prediction and prevention of EEs, remains incompletely understood.
Purpose of the Study:
- To review the current understanding of embolic events (EEs) in infective endocarditis (IE).
- To explore the challenges in predicting EEs and their unique characteristics, including hemorrhagic transformation of stroke.
- To summarize evidence and recommendations regarding cardiac surgery indications for IE, especially when EEs are the primary concern without HF or UI.
Main Methods:
- Literature review and evidence synthesis.
- Analysis of characteristics and prediction of embolic events in IE.
- Evaluation of the controversial indications for cardiac surgery in IE to prevent embolic events.
Main Results:
- Embolic events (EEs) in IE possess distinct features, such as the risk of hemorrhagic stroke, requiring specific consideration.
- Predicting EEs in IE patients is complex and not fully elucidated, impacting treatment strategies.
- The evidence supporting early cardiac surgery solely to prevent EEs in IE, in the absence of heart failure or uncontrolled infection, is controversial and largely retrospective.
Conclusions:
- Accurate prediction of embolic events (EEs) is crucial for optimizing infective endocarditis (IE) management.
- Further research is needed to clarify the role of cardiac surgery in preventing EEs when other indications are absent.
- Current recommendations for IE management must balance the risks and benefits of interventions, particularly surgery, considering the unpredictable nature of embolic events.
Abstract:
Infective endocarditis (IE) is a life-threating entity with three main complications: heart failure (HF), uncontrolled infection (UI) and embolic events (EEs). HF and UI are the main indications of cardiac surgery and have been studied thoroughly. On the other hand, much more uncertainty surrounds EEs, which have an abrupt and somewhat unpredictable behaviour. EEs in the setting of IE have unique characteristics that must be explored, such as the potential of hemorrhagic transformation of stroke. Accurately predicting which patients will suffer EEs seems to be pivotal to achieve an optimal management of the disease, but this complex process is still not completely understood. The indication of cardiac surgery in order to prevent EEs in the absence of HF or UI is in question as scientific evidence is controversial and mainly of a retrospective nature. This revision addresses these topics and try to summarize the evidence and recommendations about them.
