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Balloon angioplasty of native coarctation: clinical outcomes and predictors of success

Caroline Ovaert, MD^1,*, Brian W. McCrindle, MD, MPH, FRCPC, FACC^*, David Nykanen, MD, FRCPC^*, Cathy MacDonald, MD, Robert M. Freedom, MD, FRCPC, FACC^* and Lee N. Benson, MD, FRCPC, FACC, FSCAI

^* Department of Pediatrics, Division of Cardiology and the Variety Club Cardiac Catheterization Laboratories, Hospital for Sick Children, University of Toronto School of Medicine, Toronto, Canada
Diagnostic Imaging, Division of Cardiology and the Variety Club Cardiac Catheterization Laboratories, Hospital for Sick Children, University of Toronto School of Medicine, Toronto, Canada
Hospital for Sick Children, University of Toronto School of Medicine, Toronto, Canada

View larger version (9K): [in a new window]   Figure 1 Representation of the measurements of the CoA before and after angioplasty (ellipse) and of the fully inflated balloon (circle).

View larger version (27K): [in a new window]   Figure 2 Relation between gain and stretch for area (A) and circumference (B) and relation between recoil and stretch for area (C) and circumference (D). Reint = reintervention. Closed diamond = No Reint; open square = Reint.

View larger version (15K): [in a new window]   Figure 3 Kaplan-Meier plot of freedom from reintervention after initial transcatheter balloon angioplasty. Dashed lines represent 95% confidence intervals.