Thrombus formation on an atrial septal defect closure device

Adam C Clarke1, Kristine J Hirsch, Catherine M Kells

  • 1Department of Cardiology, Queen Elizabeth II Health Sciences Centre, Halifax, Nova Scotia. aclarke@avdha.nshealth.ca

Insights

Transcatheter closure of atrial septal defects (ASDs) is common, but device-related thrombus can occur. This case emphasizes using transesophageal echocardiography and anticoagulation during ASD closure procedures to prevent complications.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Congenital Heart Disease

Background:

  • Atrial septal defects (ASDs) are common congenital heart conditions presenting in adulthood.
  • Percutaneous closure is a standard treatment for secundum-type ASDs.
  • Complications from transcatheter ASD closure are infrequently reported.

Purpose of the Study:

  • To report a rare complication of transcatheter ASD closure: rapid thrombus formation on the device.
  • To underscore the importance of intraprocedural monitoring and anticoagulation strategies.

Main Methods:

  • Case report detailing a patient undergoing percutaneous closure of an ASD.
  • Utilized transesophageal echocardiography (TEE) for procedural guidance.
  • Managed the patient with periprocedural anticoagulation.

Main Results:

  • A large thrombus rapidly formed on the atrial septal defect closure device.
  • Transesophageal echocardiography was crucial for identifying the thrombus.
  • Anticoagulation management was implemented.

Conclusions:

  • Device-related thrombus is a potential complication of transcatheter ASD closure.
  • Transesophageal echocardiography is vital for real-time assessment during the procedure.
  • Periprocedural anticoagulation may play a role in preventing such complications.

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