Application of patent ductus arteriosus occluder in transcatheter occlusion of coronary artery fistula

Objective: To assess the clinical short-term to mid-term efficacy of transcatheter closure of coronary artery fistula by using patent ductus arteriosus occluder in pediatric patients. Methods: During the period from Jan. 2008 to May 2013 at authors' hospital, transcatheter closure of coronary artery fistula using patent ductus arteriosus occluder was performed in 8 pediatric patients. The clinical data, including follow-up information, were retrospectively analyzed. Results: A total of 8 pediatric patients with a mean age of (4.1 ± 3.8) years were enrolled in this study. The fistula originated from the right coronary artery in five cases and from the left coronary artery in three cases. The blood flow shunted to the right atrium (n = 4) or to the right ventricle (n = 4). Obstruction of the fistula was successfully accomplished in all patients. All patients were followed up for (2.2 ± 1.2) years. No procedure-related complications or cardiac ischemia occurred. Conclusion: For the treatment of coronary artery fistula in pediatric patients, the use of domestic patent ductus arteriosus occluder is safe and effective with satisfactory short-term to mid-term clinical efficacy. (authors)