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[Double outlet chamber from the right ventricle with restrictive interventricular communication]
Insights
This study details two cases of double outlet right ventricle with restrictive ventricular septal defects. Accurate diagnosis requires careful study of unique clinical, hemodynamic, and angiographic features for effective surgical planning.
Area of Science:
- Pediatric Cardiology
- Congenital Heart Disease
- Cardiac Surgery
Background:
- Double outlet right ventricle (DORV) is a complex congenital heart defect.
- Restrictive ventricular septal defects (VSDs) present unique diagnostic and management challenges.
- Understanding associated anatomical variations is crucial for surgical outcomes.
Observation:
- Two cases of DORV with subaortic restrictive VSD, atrial situs solitus, and atrioventricular concordance were identified.
- Diagnostic modalities included electrocardiogram (EKG), chest X-rays, hemodynamic studies, and angiocardiography.
- Specific findings included left ventricular overload, left atrial enlargement, venocapillary hypertension, and left ventricular/right ventricular pressure gradients.
Findings:
- One case exhibited mitro-aortic discontinuity.
- The second case presented a double infundibulum, with the left component causing the restrictive VSD.
- These cases highlight distinct clinical, hemodynamic, and angiographic characteristics.
Implications:
- Accurate characterization of these features is essential for appropriate surgical intervention in DORV with restrictive VSD.
- This study contributes to the understanding of rare congenital heart anomalies.
- Improved diagnostic strategies can lead to better surgical planning and patient outcomes.
Abstract:
We report two cases with double outlet right ventricle and subaortic restrictive ventricular septal defect. Both had atrial situs solitus and atrioventricular concordance. There were no other associated defects. Both cases were diagnosed by means of an angiocardiographic study and case two was also studied anatomically. Additional data for the diagnosis were findings of left ventricular overload by the EKG; left atrial enlargement and signs of venocapillary hypertension by the chest X-rays; left ventricular/right ventricular pressure gradient by the hemodynamic study and the angiographic findings. One case had mitro-aortic discontinuity. Case two had a double infundibulum, being the left one the responsible for the restrictive ventricular septal defect. We conclude that double-outlet right ventricle with restrictive ventricular septal defect cases have their own clinical, hemodynamic and angiographic features which have to be accurately studied in order to offer an adequate surgical treatment.