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[Detection of right-to-left shunts by one- and twodimensional contrast echocardiography (author's transl)]
Insights
Peripheral and central contrast echocardiography effectively detects and quantifies right-to-left shunts in children with congenital heart defects. This diagnostic method aids in assessing postoperative conditions and complex cardiac malformations.
Area of Science:
- Pediatric Cardiology
- Diagnostic Imaging
- Echocardiography
Context:
- Congenital cardiac malformations present complex diagnostic challenges in pediatric patients.
- Accurate assessment of intracardiac shunting is crucial for effective management.
- Contrast echocardiography offers a non-invasive imaging modality for cardiac evaluation.
Purpose:
- To evaluate the diagnostic utility of peripheral and central contrast echocardiography in pediatric congenital heart disease.
- To assess the ability of contrast echocardiography to detect and quantify right-to-left shunts.
- To determine the role of contrast echocardiography in postoperative assessment and complex cardiac malformations.
Summary:
- 33 children with congenital heart defects underwent contrast echocardiography (peripheral and central, 1D/2D).
- Peripheral contrast echocardiography demonstrated high sensitivity for detecting right-to-left shunts at atrial/ventricular levels, with potential for quantification.
- Central contrast echocardiography proved valuable for identifying residual postoperative defects, delineating cardiac structures, and assessing low-output states in complex cases.
Impact:
- Contrast echocardiography is a sensitive tool for diagnosing shunts in pediatric congenital heart disease.
- This technique aids in the management of postoperative residual defects and complex cardiac anomalies.
- Further standardization may enhance the quantitative capabilities of contrast echocardiography for shunt assessment.
Abstract:
33 children with different congenital cardiac malformations--aged one day to twelve and a half years--were investigated by peripheral and central, 1- and 2 dimensional contrast echocardiography. 11 patients were studied during routinely performed cardiac catheterization and 23 in the early postoperative period (one patient pre- and postoperatively.) Contrast echocardiography peripherally performed represents a very sensitive diagnostic method to detect right-to-left shunting at atrial and/or ventricular levels. Quantification of shunts seems to be possible, if standardization can be achieved. Contrast echocardiography centrally performed can detect right-to-left shunts in residual postoperative defects, delineate and identify intra- and extracardiac structures, assess "low-output" states and should be applied in complex cardia malformations.