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Published on: March 28, 2025
Staged interventional solution for a diagnostic dilemma caused by hypoplastic left ventricle with severe aortic arch
Santosh Wadile1, Kothandam Sivakumar1
1Department of Pediatric Cardiology, Madras Medical Mission, Chennai, Tamil Nadu, India.
Insights
Duct dependent aortic arch obstruction poses a challenge when the left ventricle (LV) is borderline. Catheter interventions can maintain ductal patency, offering an alternative to complex surgeries for neonates with hypoplastic left heart structures.
Area of Science:
- Pediatric Cardiology
- Congenital Heart Disease
- Interventional Cardiology
Background:
- Duct dependent aortic arch obstruction with borderline left ventricular (LV) hypoplasia presents a diagnostic and therapeutic challenge.
- Surgical management depends on LV adequacy to sustain systemic output post-ductal division.
- Inadequate LVs necessitate complex procedures like the Norwood surgery.
Abstract:
Duct dependent aortic arch obstruction with borderline left ventricular hypoplasia presents a diagnostic dilemma. If the left ventricle (LV) is adequate to sustain systemic cardiac output without a patent duct, arch obstruction is relieved surgically and duct is divided. Inadequate LVs do not tolerate duct division, and these patients need more complex Norwood type surgeries. However, catheter-based interventions for arch obstruction can retain ductal patency. The progressive changes in anatomy and physiology of a neonate who presented with hypoplastic left heart structures and patent duct with advancing age and modified by serial catheter-based interventions are presented to highlight the use of interventions in this therapeutic dilemma.
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