Table II. Demographic and Implant Data.
| Median age at implant (range) | 45 years (14–72) |
| Indication for closure | |
| Stroke/TIA | 191/229 |
| Migraine | 5/229 |
| Platypnea-deoxy syndrome | 9/229 |
| Othera | 24/229 |
| Median PFO balloon size (range) | 8 mm (2–17) |
| Atrial septal aneurysm (%) | 89/229 (39%) |
| Long tunnel anatomy (%) | 79/229 (34%) |
| Median procedural time (min) (range) | 32 (5–105) |
| Median X-ray dose (cGy/cm2) (range) | 366 (5–7186) |
a
Including coronary paradoxical embolus, and embolus to other (noncerebral) organs, residual shunt after previous closure.