Table 1.

Comparison of intensity and frequency of the headaches before and after PFO closure

	Before closure	After closure	p Values*
Migraine intensity (0-10)	8.14 ± 1.9	4.8 ± 2.0	0.0001
Frequency of headaches attacks (n/%)
<1 per month	3 (13.6%)	15 (88.2%)
1-10 per month	5 (22.7%)	1 (5.9%)	0.0001
>10 per month	14 (63.6%)	1 (5.9%)

^*Before vs. after closure.