Patient no.
Angle between DA and vertebra Preop. (a) Postop. (a’)
ㅿa
Postoperative peak PG across PV (mmHg)
1 50° 13° 37 0
2 18° 0° 18 20
3 60° 22° 38 2.5
4 31° 11° 20 5.8
5 25° 26° -1 3.1