Table 3.
PFO Shunt Size in Patients With OSA and Healthy Control Subjects at Rest and Following Valsalva Maneuver
| Shunt Size | At Rest |
Following Valsalva Maneuver |
||||
|---|---|---|---|---|---|---|
| OSA (n = 100) | Control Subjects (n = 50) | P Value | OSA (n = 100) | Control Subjects (n = 50) | P Value | |
| No shunt | 79 | 44 | .26 | 57a | 35a | .16 |
| Small shunt | 11 | 4 | .77 | 17 | 8 | 1.00 |
| Moderate shunt | 10 | 1 | .10 | 8 | 4 | 1.00 |
| Large shunt | 0 | 1 | .33 | 18 | 3 | .049 |
See Table 1 legend for expansion of abbreviations.
a
These subjects had no detectable shunts at rest or following Valsalva maneuver and, therefore, did not have a PFO.