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Published on: June 15, 2020
Strain imaging in morbid obesity: insights into subclinical ventricular dysfunction
Marcia M Barbosa1, Alline M Beleigoli, Maria de Fatima Diniz
1Ecocenter, Socor Hospital, Belo Horizonte, Brazil. marciambarbosa@terra.com.br.
Clinical Cardiology
|May 11, 2011
Summary
Morbid obesity is linked to early heart dysfunction. New echocardiography methods reveal reduced ventricular strain in obese individuals, suggesting potential biventricular issues needing further assessment.
Area of Science:
- Cardiology
- Obesity Medicine
- Diagnostic Imaging
Background:
- Obesity is a global health concern.
- Early detection of cardiovascular abnormalities is crucial for patient management.
- Subclinical ventricular dysfunction in obese patients requires investigation.
Purpose of the Study:
- To identify subclinical ventricular dysfunction in morbidly obese patients.
- To investigate the association between morbid obesity and ventricular dysfunction.
Main Methods:
- Doppler echocardiography was performed on 92 morbidly obese patients and 31 healthy controls.
- Conventional echocardiography and tissue Doppler-based strain imaging were utilized.
- Intra- and interobserver variability of strain imaging was assessed.
Main Results:
- Obese patients exhibited lower left ventricular (LV) global strain (22.5% ± 3.5) and right ventricular (RV) strain (25.8% ± 5.2) compared to controls.
- Diastolic function parameters differed between obese patients and controls.
- Morbid obesity was a significant determinant of global LV strain, independent of comorbidities.
Conclusions:
- Incipient biventricular dysfunction is present in morbidly obese patients.
- Strain imaging offers a more accurate assessment of ventricular function in obese individuals.
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