Focused echocardiography as a tool for differential diagnosis of cardiovascular dysfunction in children with infections: Case reports

Focused echocardiography is a screening method for evaluating the cardiovascular system in critically ill patients. It is widely utilized worldwide for the differential diagnosis and management of cardiovascular dysfunction in children with infectious diseases requiring treatment in intensive care units. This report presents three clinical cases of cardiovascular dysfunction of unknown origin in pediatric patients admitted to an infectious disease hospital with nonspecific symptoms. Focused echocardiography was performed in all cases, allowing for the identification of the underlying cause of hemodynamic disturbances. The bedside real-time application of focused echocardiography allowed for targeted therapy in all three cases, preventing life-threatening complications — sepsis, cardiac tamponade, and cardiogenic shock — along with continuing standard treatment and facilitating timely decision-making for specialized care. All cases involved cardiac manifestations within the infectious disease process. Each patient achieved full recovery. Focused echocardiography can be used as a simple, reliable, and highly effective tool for the differential diagnosis of cardiovascular dysfunction in children with infectious diseases requiring intensive care. This method deserves broader implementation in routine clinical practice.