Transcatheter closure of complex atrial septal defects is efficient under intracardiac echocardiographic guidance

Anass Assaidi1, Marion Sumian2, Lucia Mauri1

  • 1Cardiologie pédiatrique et congénitale, hôpital de la Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille, France.

Insights

Intracardiac echocardiography enables safe and effective transcatheter closure for complex atrial septal defects (ASDs), including larger or rim-deficient cases. This approach expands treatment options for patients with challenging ASD anatomy.

Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Medical Imaging

Background:

  • Previous studies on intracardiac echocardiography (ICE)-guided transcatheter closure of secundum atrial septal defects (ASDs) were limited to defects ≤38mm without rim deficiency.
  • Complex ASDs, defined as defects >38mm or with rim deficiency, presented a challenge for existing closure techniques.

Purpose of the Study:

  • To evaluate the safety and efficacy of transcatheter closure for complex atrial septal defects (ASDs) using intracardiac echocardiography (ICE) guidance.
  • To assess the feasibility of percutaneous device closure in adult patients with challenging ASD anatomies.

Main Methods:

  • A retrospective analysis of 93 consecutive adult patients undergoing percutaneous device closure of ASD between January 2006 and January 2012.
  • Complex cases were identified as those with ASD diameter >38mm and/or rim deficiency (excluding the anterior-superior rim).
  • Intracardiac echocardiography was utilized for guidance throughout the transcatheter closure procedure.

Main Results:

  • Transcatheter closure was performed in 93 adult patients; 17 (18%) had complex ASDs (larger size or rim deficiency).
  • Successful closure was achieved in 14 of 17 complex cases (82%), with 3 failures (18%). Minor complications occurred in 3 patients (18%).
  • Rim deficiency, excluding the anterior-superior rim, showed a trend towards association with closure failure (P=0.058).

Conclusions:

  • Transcatheter closure of complex atrial septal defects (ASDs) is a safe and effective procedure when guided by intracardiac echocardiography.
  • ICE guidance facilitates the percutaneous closure of challenging ASD anatomies, expanding treatment possibilities.
Abstract