Related Experiment Videos
Cutting balloon angioplasty for children with small-vessel pulmonary artery stenoses
John F Rhodes1, Geoffrey K Lane, C Igor Mesia
1Department of Pediatric Cardiology, The Cleveland Clinic Foundation, Center for Pediatric and Congenital Heart Diseases, Cleveland, Ohio 44195, USA. rhodesj1@ccf.org
Insights
Cutting balloon angioplasty effectively treats pulmonary artery stenoses resistant to standard methods. This intervention significantly improves immediate and intermediate-term outcomes in patients with complex congenital heart disease.
Area of Science:
- Cardiology
- Interventional Cardiology
- Pediatric Cardiology
Background:
- Complex congenital heart disease often involves pulmonary artery stenoses.
- These stenoses can be congenital or develop post-surgically.
- Small-vessel stenoses may resist standard balloon angioplasty.
Purpose of the Study:
- To evaluate the efficacy of cutting balloon angioplasty.
- To treat pulmonary artery stenoses resistant to standard balloon angioplasty.
- To assess outcomes in patients with complex congenital heart disease.
Main Methods:
- A compassionate-use protocol was followed between October 1998 and December 1999.
- Seven lesions resistant to standard angioplasty were treated.
- Cutting balloon angioplasty was performed, followed by repeat standard angioplasty.
Main Results:
- Initial lesion diameter averaged 1.8 mm, unchanged by standard angioplasty.
- Cutting balloon angioplasty significantly increased mean lesion diameter to 3.8 mm.
- Intermediate-term follow-up (14 months) showed sustained improvement (3.2 mm).
Conclusions:
- Cutting balloon angioplasty is a viable option for refractory pulmonary artery stenoses.
- The procedure offers significant immediate and intermediate-term benefits.
- This technique improves angioplasty results for challenging stenotic lesions.
Abstract:
Patients with complex congenital heart disease may have pulmonary artery stenoses that are either congenital or associated with scarring following surgical procedures. This study evaluates cutting balloon angioplasty for small-vessel pulmonary artery stenoses resistant to standard balloon angioplasty. Between October 1998 and December 1999, patients were enrolled in an FDA-approved compassionate-use protocol. During four catheterizations, there were seven lesions found resistant to standard balloon angioplasty (mean lesion diameter was unchanged: 1.8 mm +/- 0.8 mm to 1.9 +/- 0.8 mm). A cutting balloon was inflated twice in each of these lesions. Standard balloon angioplasty was then repeated. Final mean lesion diameter was increased significantly (1.9 mm +/- 0.8 mm to 3.8 +/- 1.3 mm; P