Impact of childhood obesity on cardiac structure and function

Area of Science:

• Cardiology
• Pediatrics
• Public Health

Background:

• Global obesity rates are increasing in children and adults.
• Obesity is a major cardiovascular risk factor in adults, but its impact on children is less understood.
• Early cardiovascular changes in obese children may have long-term consequences.

Purpose of the Study:

• To review the cardiac impact of childhood obesity.
• To highlight early myocardial changes in obese children.
• To discuss associated risk factors and the need for further research.

Main Methods:

• Review of existing studies on childhood obesity and cardiac function.
• Comparison of cardiac parameters in obese versus normal-weight children.
• Analysis of associations between myocardial changes and metabolic risk factors.

Main Results:

• Obese children exhibit larger left atrial and ventricular dimensions and increased left ventricular mass.
• Sub-clinical myocardial dysfunction, indicated by reduced tissue Doppler velocities and myocardial deformation, is observed in obese children.
• These changes are linked to metabolic syndrome components like hypertension, diabetes, and lipid abnormalities.

Conclusions:

• Childhood obesity is associated with early cardiac alterations, including myocardial dysfunction.
• Long-term effects of these changes and the impact of interventions remain uncertain.
• No specific interventional strategies for myocardial dysfunction in obese children are currently recommended due to limited data.