In heart disease, prophylactic forceps is applied at head station of:
In heart disease forceps are applied prophylactically to cut down the second stage of labour and usually low or outlet forceps applied.

Low forceps: Applied when leading point of fetal scalp is at station + 2 and not on pelvic floor.
Outlet forceps: Applied when fetal skull has reached pelvic floor and scalp is visible at the introitus even without separating the labia, i.e. station ≥ + 3
-1
1
0
2