Page 33 - Journal of Structural Heart Disease Volume 3, Issue 6

189 Case Report
Figure 2. TEE showing residual shunt 1 year after 20-mm Occluder Septal Helex implantation.
residual shunt was con rmed with several negative agitated saline injections. He was advised to not use the high-frequency chest wall oscillation device for at least 12 months. At 6-month follow-up, the patient showed signi cant improvement in his functional ca- pacity, with pulmonary function testing demonstrat- ing a spike increase in FEV1 to 3.4 (89% predicted; Table 1).
Discussion
ASD is one of the most common adult congenital heart defects [3, 4]. It is caused by underdevelopment of the secundum septum or over-reabsorption of the primum septum. In most cases, ASDs close sponta- neously during infancy [4, 5]; however, if persistent, their clinical impact is related to their location, size, and association with other defects [5, 6]. Small ASDs usually cause a left-to-right shunt without signi - cant structural consequences in the right-sided heart chambers. However, larger ASDs, if not corrected in
Figure3. Fluoroscopyshowingplacementofa30-mmCardio- form device adjacent to the previously placed 20-mm Occluder Septal Helex.
Saidi A. et al.
ASD Closure in Patient with Cystic Fibrosis