There can be significant blood loss from the coronal incision at the beginning of surgery and during closure. Several techniques may be used to limit blood loss:
Infiltration of a vasoconstrictor into the subgaleal plane. As illustrated, the scalp is hyperinflated along the whole length of the incision line for hydrostatic tamponade just prior to the incision
Insertion of running mattress sutures along the sides of the planned incision lines
Use of heated or cautery scalpels during the incision
Use of hemostatic clips (Raney clips) after elevation of the wound edges
A combination of these techniques may also be used.