Left ventricular mass and function in young obese women

Area of Science:

• Cardiology
• Obesity Medicine
• Diagnostic Imaging

Background:

• Obesity is a significant risk factor for cardiovascular disease mortality.
• Left ventricular (LV) hypertrophy is a known cardiac adaptation to obesity.
• Early detection of cardiac changes in obese individuals is crucial for preventative strategies.

Purpose of the Study:

• To evaluate echocardiographically the left ventricular (LV) mass and function in young obese women compared to lean women.
• To determine the relationship between the degree of obesity and LV mass.
• To identify early signs of cardiac involvement in asymptomatic obese women.

Main Methods:

• Prospective comparative study involving 82 obese women (BMI 30-50 kg/m2) and 80 lean women (age <= 40).
• Exclusion criteria included hypertension, cardiovascular complaints, pulmonary disease history, and medication use.
• Left ventricular (LV) mass calculated using the Devereux and Reichek formula; LV mass adjusted indexes and E/A ratio assessed.

Main Results:

• Significantly increased LV mass observed in all obese groups compared to lean subjects (P<0.00003 to 0.000005).
• LV mass showed a strong positive association with the degree of obesity (r=0.52, P<0.001).
• Systolic and diastolic functions were similar, except for a lower E/A ratio in obese women (P=0.005).

Conclusions:

• Asymptomatic young obese women exhibit echocardiographic findings suggestive of early cardiac involvement.
• The degree of obesity appears to be related to the observed changes in LV mass.
• These findings highlight the importance of cardiac monitoring in obese individuals.