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Updated: Aug 14, 2026
Murine Fetal Echocardiography
Published on: February 15, 2013
Echocardiographic diagnosis alone for the complete repair of major congenital heart defects
W Tworetzky1, D B McElhinney, M M Brook
1Division of Pediatric Cardiology, University of California, San Francisco, USA.
Insights
Echocardiography alone accurately diagnoses major congenital heart defects in children before surgery. This imaging technique can replace routine cardiac catheterization for many pediatric patients needing primary complete repair.
Area of Science:
- Pediatric Cardiology
- Diagnostic Imaging
- Congenital Heart Disease
Background:
- Echocardiography is the primary diagnostic tool for congenital heart disease.
- Cardiac catheterization is often used for complex defects despite echocardiography's capabilities.
- This practice raises questions about the necessity of routine catheterization.
Purpose of the Study:
- To assess the diagnostic accuracy of echocardiography alone for major congenital heart defects in children.
- To compare echocardiography's accuracy with combined echocardiography and catheterization.
- To determine if echocardiography can obviate the need for routine cardiac catheterization.
Main Methods:
- Retrospective review of 503 children with major congenital heart defects undergoing primary complete repair.
- Inclusion criteria: specific complex defects (e.g., transposition of great arteries, tetralogy of Fallot).
- Exclusion criteria: less complex or palliative-only defects. Diagnostic errors defined by surgical findings.
Main Results:
- 82% of children had preoperative diagnoses solely via echocardiography.
- Echocardiography alone had 9 major (2%) and 10 minor diagnostic errors.
- Combined approach had 7 major and 5 minor errors; no errors caused morbidity or mortality.
Conclusions:
- Echocardiography alone demonstrates high accuracy for preoperative diagnosis of major congenital heart defects in children.
- Routine diagnostic cardiac catheterization may not be necessary for many pediatric patients.
- This finding supports the use of echocardiography as a standalone preoperative diagnostic tool.
Objectives:
The study was done to determine the diagnostic accuracy of echocardiography alone in the preoperative diagnosis of children with major congenital heart defects undergoing primary complete repair.
Background:
Although echocardiography is well established as the first-line imaging technique for the diagnosis of all forms of congenital heart disease, most institutions continue to perform cardiac catheterization prior to complete repair of more complex defects.
Methods:
To determine the diagnostic accuracy of echocardiography alone and echocardiography plus catheterization, we reviewed the records of 503 children with major congenital heart defects who underwent primary complete repair at our institution between July 1992 and June 1997. We included children with transposition of the great arteries, tetralogy of Fallot, double-chamber right ventricle, interrupted aortic arch, aortic coarctation, atrioventricular septal defect, truncus arteriosus, aortopulmonary septal defect, and totally anomalous pulmonary venous return. We excluded children with less complex defects such as isolated shunt lesions, as well as those with the most complex defects that would require surgical palliation (e.g., functional univentricular heart). We defined major errors as those that increased the surgical risk and minor errors as those that did not. Errors in diagnosis were determined at surgery.
Results:
Eighty-two percent of children (412 of 503) underwent surgery after preoperative diagnosis by echocardiography alone. There were 9 major (2%) and 10 minor errors in the echocardiography alone group and 7 major and 5 minor errors in the echocardiography plus catheterization group. The most common type of error was misidentification of coronary artery anatomy in patients with transposition of the great arteries. No error in either group resulted in surgical morbidity or mortality.
Conclusions:
This study suggests that echocardiography alone is an accurate tool for the preoperative diagnosis of major congenital heart defects in most children undergoing primary complete repair, and may obviate the need for routine diagnostic catheterization.
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