Author + information
- Received March 21, 1996
- Revision received June 20, 1996
- Accepted August 13, 1996
- Published online December 1, 1996.
- Brian W. McCrindle, MD, MPH, FACC1,⁎,
- Thomas K. Jones, MD, FACC*,
- W. Robert Morrow, MD, FACC†,
- Donald J. Hagler, MD, FACC‡,
- Thomas R. Lloyd, MD, FACC§,
- Soyaya Nouri, MD, FACC∥,
- Larry A. Latson, MD, FACC¶,
- For the Valvuloplasty and Angioplasty of Congenital Anomalies (VACA) Registry Investigators#
- ↵⁎Address for correspondence: Dr. Brian W. McCrindle, Department of Pediatrics, The Hospital for Sick Children, 555 University Avenue, Toronto, Ontario, Canada M5G 1X8.
Objectives This study sought to compare the immediate results and risk factors for suboptimal outcomes of percutaneous balloon angioplasty for native versus recurrent aortic obstruction.
Background Some cardiology centers have been reluctant to adopt balloon angioplasty for treatment of native aortic coarctation, while advocating balloon angioplasty over an operation for treatment of postsurgical or recurrent aortic obstruction.
Methods Acute results were analyzed from 970 procedures (422 native and 548 recurrent lesions) performed between 1982 and 1995 in 907 patients from 25 centers. An acute suboptimal outcome was defined as one or more of the following: residual systolic pressure gradient -20 mm Hg, residual proximal to distal systolic pressure ratio -1.33 or a major complication (death, aortic transmural tear, stroke).
Results Balloon angioplasty significantly (p = 0.0001) increased lesion diameter for both native (mean [±SD] 128 ± 94%) and recurrent aortic obstruction (97 ± 87%), with a significantly greater increase in the native group (p = 0.0001). A reduction in systolic pressure gradients was significant in both groups (p = 0.0001), but slightly higher (p = 0.01) for native (-74 ± 24%) versus recurrent obstruction (-70 ± 31%). Death associated with angioplasty was reported in 0.7% of patients with native and in 0.7% of patients with recurrent lesions (p = 1.00). An acute suboptimal outcome was noted with angioplasty in 19% of native and in 25% of recurrent lesions (p = 0.04). Significant independent risk factors included higher preangioplasty systolic gradient (odds ratio [OR] 1.39/10-mm Hg increment; 95% confidence interval [CI] 1.28 to 1.50, p = 0.0001), earlier study date (OR 0.92/1-year increment, 95% CI 0.87 to 0.96, p = 0.0006), older age (OR 1.13/5-year increment, 95% CI 1.02 to 1.26, p = 0.02) and recurrent obstruction (OR 1.39 vs. native lesions, 95% CI 1.00 to 1.94, p = 0.05).
Conclusions Acute results and complications of balloon angio-plasty of native coarctation appear to be equivalent or slightly superior to those of recurrent aortic obstructions.
- Received March 21, 1996.
- Revision received June 20, 1996.
- Accepted August 13, 1996.
- American College of Cardiology