Atrial septal occlusion devices are implantable cardiac devices used in patients with certain types of atrial septal defects.
They are used in cases of atrial septal defects with right atrial or ventricle enlargement, to prevent paradoxical embolism, left-to-right shunting and platypnea-orthodeoxia syndrome 1. However, only secundum atrial septal defects are suitable for closure with such devices 2.
The devices, inserted percutaneously, are deployed using a catheter and consist of a self-expanding double disk composed of nitinol mesh 3. The disks sit on both sides of the septal defect and occlude the defect. The Amplatzer Septal Occluder is the most common atrial septal occlusion device 3. These devices have also been used in the closure of muscular ventricular septal defects 3.
Circular disk-like structure visible over the location expected to be the interatrial septum 1.
Echocardiography is usually performed to ensure proper device positioning and to monitor for the presence of a residual shunt 1.
- 1. Moore J, Hegde S, El-Said H, Beekman R, Benson L, Bergersen L, Holzer R, Jenkins K, Ringel R, Rome J, Vincent R, Martin G. Transcatheter device closure of atrial septal defects: a safety review. (2013) JACC. Cardiovascular interventions. 6 (5): 433-42. doi:10.1016/j.jcin.2013.02.005 - Pubmed
- 2. Warnes CA, Williams RG, Bashore TM, Child JS, Connolly HM, Dearani JA, Del Nido P, Fasules JW, Graham TP, Hijazi ZM, Hunt SA, King ME, Landzberg MJ, Miner PD, Radford MJ, Walsh EP, Webb GD. ACC/AHA 2008 guidelines for the management of adults with congenital heart disease: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to Develop Guidelines on the Management of Adults With Congenital Heart Disease). Developed in Collaboration With the American Society of Echocardiography, Heart Rhythm Society, International Society for Adult Congenital Heart Disease, Society for Cardiovascular Angiography and Interventions, and Society of Thoracic Surgeons. (2008) Journal of the American College of Cardiology. 52 (23): e143-e263. doi:10.1016/j.jacc.2008.10.001 - Pubmed
- 3. Sigakis CJG, Mathai SK, Suby-Long TD, Restauri NL, Ocazionez D, Bang TJ, Restrepo CS, Sachs PB, Vargas D. Radiographic Review of Current Therapeutic and Monitoring Devices in the Chest. (2018) Radiographics : a review publication of the Radiological Society of North America, Inc. 38 (4): 1027-1045. doi:10.1148/rg.2018170096 - Pubmed