[Septic shock and septic cardiomyopathy].

Area of Science:

• Cardiology
• Critical Care Medicine
• Pathophysiology

Context:

• Septic shock presents with vasodilation and sepsis-induced cardiac dysfunction.
• Elevated troponin levels, not due to ischemia, suggest septic cardiomyopathy.
• Cardiac dysfunction involves altered systolic function and heart rate variability.

Purpose:

• To explain the pathophysiology of septic cardiomyopathy.
• To highlight the role of endotoxins and autonomic dysfunction.
• To introduce afterload-related cardiac performance (ACP) for quantification.

Summary:

• Septic cardiomyopathy is characterized by reduced cardiac function and heart rate disturbances, influenced by endotoxins and autonomic nervous system dysfunction.
• Afterload-related cardiac performance (ACP) quantifies septic cardiomyopathy by considering cardiac output relative to afterload.
• Current therapy focuses on supportive measures like fluid resuscitation and inotropic agents (dobutamine).

Impact:

• Provides a framework for understanding and quantifying septic cardiomyopathy.
• Highlights the need for further specific therapeutic strategies beyond current supportive care.
• Improves clinical recognition of cardiac involvement in septic shock.