Effects of selective obstruction of intracranial venous sinuses on systemic arterial pressure, cerebral perfusion pressure, intracranial pressure and intrasinal pressure in cats / 영남의대학술지

ABSTRACT

In order to evaluate the safe ligation time and sites of dural venous sinuses during neurosurgical operation, systemic arterial pressure(SAP), cerebral perfusion perssure(CPP), intracranial pressure (ICP) and intrasinal pressure(ISP) were measured in cats through neuromonitor before and after obstruction of anterior 1/3, middle 1/3, posterior 1/3 of the superior sagittal sinus and the results were as follows. There were no significant increases of pressures after obstruction of anterior 1/3 of the superior sagittal sinus. In the obstructed middle 1/3 of the superior sagittal sinus group, signifi6int increases were seen un the m-SAP within 2, 4 and 6 minutes, the m-ICP within 2-7 minutes, the r.i-ISP within 14 minutes after obstruction. In the -obstructed posterior 1/3 of the superior sagittal sinus group, there were significant increases of m-SAP within 2, 4 and 6 minutes, the m-ICP within 27 minutes, the m-ISP within 13 minutes. In the obstructed Torcular Herophili,group, there were significant increases of the m-SAP within 1-2 and 4-7 minutes, the m-ICP within 36 minutes and the m-ISP within 1-7 minuted and less significant dercreases of the m-CPP within 5-7 minutes after obstruction. In the obstructed right transverse sinus group, significant increases of the m-ICP and the m-ISP were seen within 1-7 minutes after obstruction. there were no remarkable changes in the obstructed left transverse sinus group.