Author/Editor		Djurić, S; Milenković, Z; Klopčić-Spevak, M; Spasić, M
Title		Somatosensory evoked potential monitoring during intracranial surgery
Type		članek
Source		Acta Neurochir (wien)
Vol. and No.		Letnik 119, št. 1-4
Publication year		1992
Volume		str. 85-90
Language		eng
Abstract		In the neurosurgical approach to intracranial aneurysms which are often accompanied by arterial spasm and cortical ischaemia, monitoring procedures aim to obtain useful information on cerebral function. SEPs evoked by stimulation of the median nerve at the wrist and of the tibial nerve at the medial malleolus were registered in 45 patients with intracranial aneurysms during neurosurgical procedures. Our results show SEP abnormalities during different stages of neurosurgical procedures in 36 patients out of the monitored 45. Significant abnormalities of SEPs with respect to the control group were decrease of the amplitude of N 20-P 25 complex, lengthening of the absolute latency of the waves N 20- and P 25 and lengthening of the central conduction time (CCT) (N 13-N 20). The greatest SEP abnormalities were registered during the neurosurgical approach to aneurysm and during the clipping procedure. However, the changes were reversible in the majority of the patients. The aim of this paper was to focus on early detection of some cerebral function disturbances during the neurosurgical procedure as well as the prevention of possible brain damage.
Descriptors		CEREBRAL ANEURYSM ELECTROENCEPHALOGRAPHY EVOKED POTENTIALS, SOMATOSENSORY INTRAOPERATIVE COMPLICATIONS INTRAOPERATIVE MONITORING ADULT AGED BRAIN DAMAGE, CHRONIC CEREBRAL ISCHEMIA ELECTRIC STIMULATION MEDIAN NERVE MIDDLE AGE NEUROLOGIC EXAMINATION POSTOPERATIVE COMPLICATIONS REACTION TIME TIBIAL NERVE