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The cerebral function monitor
Author(s) -
SCHWARTZ M. S.,
COLVIN M. P.,
PRIOR PAMELA F.,
STRUNIN L.,
SIMPSON B. R.,
WEAVER E. J. M.,
SCOTT D. F.
Publication year - 1973
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1111/j.1365-2044.1973.tb00544.x
Subject(s) - medicine , brain function , neuroscience , biology
Continuous monitoring of cerebral activity by conventional electroencephalography during cardiac surgery with cardiopulmonary by-pass has proved valuable,’ J but such monitoring is costly, both in terms of the experienced staff and the bulky apparatus required. A device, the Cerebral Function Monitor (CFM),* has been claimed to be a suitable alternative, partly because of the ability to reject artefacts encountered in the operating theatre and the provision of continuous monitoring of electrode impedance and of any other malfunctionings in the ~ y s t e r n . ~ , ~ This apparatus has the advantage that quantification is readily made by simple measurements of tracings obtained both during and after surgery. In contrast, the conventional electroencephalogram (EEG) is less readily amenable to quantification by simple measurement. Preliminary studies indicated that the CFM was of value during cardiac surgery,’ and in the present communication we report in more detail a retrospective analysis of 100 patients. The CFM tracings were assessed in the first instance without reference to clinical information to establish whether there were changes in cerebral activity during surgery which could predict neurological outcome. These predictions were compared subsequently with the actual outcome.