 Hemostasis of the epidural bleeders was done with a combination of bipolar coagulation, but we needed to put a small piece of Gelfoam on the patient's left because of profuse venous bleeder. 
Hemostasis of the epidural bleeders was done with a combination of bipolar coagulation , but we needed to put a small piece of Gelfoam on the patient 's left because of profuse venous bleeder .