Right ventricular function in children with severe respiratory syncytial virus (RSV) bronchiolitis

Area of Science:

• Pediatric Cardiology
• Pediatric Critical Care Medicine
• Infectious Diseases

Background:

• Severe respiratory syncytial virus (RSV) infection in children is linked to myocardial damage and hepatitis.
• Understanding the impact on cardiac function is crucial for managing severe pediatric illness.

Purpose of the Study:

• To assess right ventricular (RV) function in children with severe RSV disease.
• To investigate the association between RV function and disease severity, myocardial damage, and hepatitis.

Main Methods:

• Prospective observational study in a pediatric intensive care unit (PICU).
• Echocardiographic assessment of RV function (Tei index) and left ventricular function.
• Measurement of cardiac troponin T, transaminases, and C-reactive protein levels.

Main Results:

• Twenty percent of ventilated children with severe RSV infection showed reduced RV function (elevated Tei index).
• No significant difference in left ventricular function, C-reactive protein, or transaminase levels based on RV function.
• Elevated cardiac troponin T occurred in 41% of patients, not significantly associated with RV function.

Conclusions:

• Reduced right ventricular function is present in severe RSV disease.
• The degree of RV dysfunction was not correlated with biochemical markers of myocardial/hepatic damage or respiratory support needs.