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Published on: January 12, 2019
Evaluation of Left-Sided Heart Chambers With Novel Echocardiographic Techniques in Men With Duchenne or Becker
Raphael Henrique Déa Cirino1, Rosana Herminia Scola2, Renata Dal-Prá Ducci3
1Cardiology Division, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Parana, Brazil.
Insights
Two-dimensional echocardiography effectively evaluates heart structure in Duchenne (DMD) and Becker (BMD) muscular dystrophy patients. Myocardial strain analysis using this method detects early left ventricular systolic dysfunction (LVSD) in a significant number of these patients.
Area of Science:
- Cardiology
- Medical Imaging
- Genetics
Background:
- Left ventricular systolic dysfunction (LVSD) is prevalent in Duchenne (DMD) and Becker (BMD) muscular dystrophies.
- Echocardiography is crucial for assessing cardiac function in these patients.
Purpose of the Study:
- To compare cardiac imaging data from 3D and 2D echocardiography in DMD and BMD patients.
- To evaluate myocardial strain for early LVSD detection in DMD and BMD.
Main Methods:
- Cross-sectional study of 46 DMD and 14 BMD patients.
- Utilized 3D and 2D echocardiography for cardiac measurements.
- Assessed global longitudinal strain (GLS) via 2D speckle tracking.
Main Results:
- Strong correlation between 3DE and 2DE for chamber volume measurements.
- 2DE showed larger chamber volumes, but ejection fraction was similar between techniques.
- Myocardial strain detected early LVSD in 50% of DMD and 9.1% of BMD patients.
Conclusions:
- 2D echocardiography is a viable tool for cardiac evaluation in DMD and BMD.
- Myocardial strain analysis effectively identifies early LVSD in dystrophinopathies.
Abstract:
Left ventricular systolic dysfunction (LVSD) is a common finding in patients with Duchenne (DMD) and Becker (BMD) muscular dystrophies. Novel echocardiographic techniques have been used for the detection of LVSD in several heart diseases. We aim to compare cardiac anatomic and functional data studied by three-dimensional (3DE) and two-dimensional (2DE) echocardiography and to analyze the myocardial strain for the detection of early LVSD in DMD and BMD patients. We performed a cross-sectional study of 46 DMD and 14 BMD patients. We measured left atrium volume and left ventricle volumes and ejection fraction using 3DE and 2DE techniques. Myocardial strain analysis was derived from global longitudinal strain (GLS) measurements. GLS was measured by 2DE with the speckle tracking technique. The correlation between 3DE and 2DE for the measurement of left atrium volume as well as left ventricle diastolic and systolic volumes was strong. 2DE presented larger left atrium and left ventricle volumes. Left ventricle ejection fraction was similar between the two techniques. Myocardial strain analysis was able to detect early LVSD in 50.0% of DMD patients and in 9.1% of BMD patients. In conclusion, two-dimensional echocardiography appears to be a good alternative for the anatomical and functional evaluation of the left heart chambers in DMD and BMD patients. Myocardial strain analysis detects early LVSD in a sizable portion of patients with dystrophinopathies.
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