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Cutting balloon angioplasty for aortic coarctation
Akira Ozawa1, Dragos Predescu, R Chaturvedi
1Labatt Family Heart Center, the Cardiac Diagnostic and Interventional Unit, the Hospital for Sick Children, and the University of Toronto School of Medicine, Toronto, Ontario, Canada.
Cutting balloon angioplasty (CBA) shows promise for treating coarctation of the aorta (CoA) in infants and children. This technique effectively widens narrowed vessels and reduces blood pressure gradients, offering a safe option for complex cases.
Area of Science:
- Pediatric cardiology
- Interventional cardiology
- Vascular medicine
Background:
- Cutting balloon angioplasty (CBA) is established for resistant adult coronary artery disease.
- Its use in pediatric coarctation of the aorta (CoA) has not been previously reported.
Purpose of the Study:
- To evaluate the safety and efficacy of CBA in treating pediatric CoA.
- To assess the outcomes of CBA for coarctation of the aorta in children.
Main Methods:
- Retrospective review of 10 CBA procedures in 8 children with CoA (median age 5.5 months).
- CBA used as primary treatment or after conventional angioplasty for residual narrowing.
- Vessel diameter and blood pressure gradients were measured before and after procedures.
Main Results:
- Significant increase in CoA diameter (2.8 mm to 4 mm; p=0.0018).
- Marked reduction in arm-to-leg systolic blood pressure gradient (38.5 mmHg to 7 mmHg; p<0.0001).
- Acute safety observed, with minor complications like arteriovenous fistula or pseudoaneurysm in 2 patients.
Conclusions:
- CBA is acutely safe and effective for managing challenging pediatric coarctation lesions.
- This early experience supports CBA as a viable option for recalcitrant CoA in young patients.
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