Does transcatheter PDA closure improve safety compared to traditional fluoroscopy methods?

Transcatheter closure of patent ductus arteriosus (PDA) has evolved from traditional fluoroscopy-based techniques to newer methods that use echocardiography or CT for guidance. These modern approaches aim to improve safety by reducing radiation exposure and providing better anatomical detail. Evidence suggests that these newer methods are safer and more effective than traditional fluoroscopy alone.

What the research says

A narrative review highlights that advances in imaging, such as echocardiographic guidance and radiation-sparing protocols, have enhanced procedural safety, reduced radiation exposure, and shortened procedure times for transcatheter PDA closure ¹. A study comparing preprocedural CT to aortography in adults found that CT led to more accurate device sizing, fewer device replacements, and shorter procedure times ⁷. Another study on PDA stent sizing showed that 3D CT and angiography have variable accuracy depending on ductal tortuosity, with angiography performing better in straight ducts and CT offering advantages in complex anatomy ⁴. A large international cohort study of infants weighing 2 to 6 kg reported a 95% success rate for transcatheter closure, with major adverse events in 14% of cases, indicating that the procedure is generally safe but carries some risk, especially in smaller infants ⁶.

What to ask your doctor

• What imaging method (echocardiography, CT, or fluoroscopy) does your center use for transcatheter PDA closure?
• How does the choice of imaging affect radiation exposure and procedural safety for my child or me?
• Are there any specific risks based on the size or shape of the PDA, such as window-type or tubular ducts?
• What is the success rate and complication rate for transcatheter PDA closure at your center?
• Would preprocedural CT imaging be beneficial in my case for better planning?