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Cardiac Changes in Overweight and Obese Patients
Insights
Overweight and obese individuals show increased risks of early cardiac changes, including diastolic dysfunction and thickened heart structures. These findings highlight the need for proactive cardiovascular monitoring in these populations.
Area of Science:
- Cardiology
- Obesity Medicine
Background:
- Rising prevalence of obesity and overweight conditions globally.
- Significant association of these conditions with cardiovascular complications and mortality.
Purpose of the Study:
- To identify and diagnose early cardiac alterations in overweight and obese patients.
- To investigate the relationship between body mass index and cardiac structural/functional changes.
Main Methods:
- Cross-sectional, analytical, and observational study.
- Inclusion of 111 subjects: 27 normal weight, 84 overweight/obese.
- Utilized clinical examination, biochemical tests, and 2D echocardiography.
Main Results:
- Diastolic dysfunction is 2-5 times more frequent in overweight/obese individuals compared to normal weight.
- Interventricular septum thickness correlates with body mass index (BMI).
- Elevated left ventricle mass and mass-to-surface ratio are linked to diastolic dysfunction and BMI.
Conclusions:
- Overweight and obese patients exhibit early cardiac changes not seen in normal weight individuals.
- Key cardiac alterations include decreased ejection fraction, diastolic dysfunction, septal thickening, and increased left ventricle mass.
- These findings underscore the importance of early cardiac assessment in managing obesity-related cardiovascular risks.
Background:
Obesity and overweight are two pathologies that are more and more frequent in the XXIst century diagnosis and are causing high morbidity and mortality rates in the general population, especially through cardiovascular complications.
Aims:
Identification and early diagnosis of cardiac changes in overweight and obese patients.
Material And Method:
We carried out a sectional, analytical and observational study on 111 subjects: 27 normal weight subjects and 84 overweight and obese patients, which were submitted to a clinical exam, biochemical exams and 2D ultrasound.
Results:
The presence of diastolic dysfunction is twice more frequent in overweight patients in comparison to normal weight ones (30% vs 15%) and 5 times more frequent in obese patients than normal weight ones (75% vs 15%). The size increase of the interventricular septum is correlated with the body mass index, there being statistically significant differences between normal weight vs overweight vs obese patients, as well as between overweight and obese ones. Within the whole group and within the groups, both the left ventricle mass (g) as well as the left ventricle mass to body surface ratio (g/m²) are statistically significantly higher in patients with present diastolic dysfunction (E/A < 1). This indicates a relation between the presence of diastolic dysfunction, increased left ventricle mass and body mass index (p < 0.05).
Conclusions:
Overweight and obese patients, unlike normal weight ones, present early cardiac changes, such as: a decrease of left ventricle ejection fraction, diastolic dysfunction, thickening of the interventricular septum, increase of the left ventricle mass both per se as well as in ratio to body surface.
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