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Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
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Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

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Multislice computed tomographic findings in symptomatic patients after amplatzer septal occluder device implantation

Ali N Zaidi1, John P Cheatham, Subha V Raman

  • 1Department of Internal Medicine, Division of Cardiovascular Medicine, The Ross Heart Hospital, The Ohio State University, Columbus, Ohio, USA.

Journal of Interventional Cardiology
|January 15, 2009
PubMed

Insights

Multislice computed tomography (MSCT) is feasible for assessing Amplatzer Septal Occluder (ASO) devices in patients experiencing symptoms after atrial septal defect (ASD) closure. This imaging technique provides detailed anatomical insights, aiding in the investigation of post-procedural complications.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Interventional Cardiology

Background:

  • Transcatheter closure of atrial septal defects (ASDs) can lead to complications like pericardial effusion and tamponade.
  • Transthoracic echocardiography in adults often has limitations due to poor acoustic windows, hindering complete device assessment.
  • Multislice computed tomography (MSCT) offers an alternative imaging modality for evaluating the Amplatzer Septal Occluder (ASO) device anatomy.

Purpose of the Study:

  • To determine the feasibility of using MSCT for anatomical assessment in patients with persistent or recurrent symptoms after transcatheter ASD closure with ASO devices.

Main Methods:

  • Retrospective analysis of adult patients who underwent ASO implantation and subsequent MSCT imaging due to symptoms.
  • Data collected included patient demographics, ASO device size, device-to-structure relationship, symptoms, and time from implantation to symptom onset.

Main Results:

  • Eleven patients (mean age 41) with symptoms 1 week to 2.4 years post-implantation were analyzed.
  • MSCT provided detailed anatomical information on device location relative to surrounding structures in all cases.
  • Pericardial effusions were noted in two patients; one had nonobstructive coronary plaque.

Conclusions:

  • Cardiac symptoms post-ASO implantation warrant thorough investigation.
  • MSCT is a feasible and valuable tool for assessing ASO devices and their relationship to surrounding anatomy in symptomatic patients.
  • MSCT should be considered an adjunct to echocardiography for evaluating symptomatic patients after ASO placement.
Abstract

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