Table 1 The characters of patients with migraine and PFO
From: Normobaric oxygen may attenuate the headache in patients with patent foramen povale and migraine
Parameter（n=39） | Results |
|---|---|
Site of the headache | |
  Frontal brain | 5 |
  Parietal part | 8 |
  Occipitoparietal part | 3 |
  Temporal part | 4 |
  Whole brain | 14 |
  One side of hemisphere | 2 |
  Uncertain site | 4 |
Frequency of the headache | |
 0-5times/month | 22 |
 5-10times/month | 11 |
 >10 times/month | 6 |
Aura | |
 With aura | 25 |
 Without aura | 14 |
Intensity of the headache | |
 VAS | 4.62 (2-7) |