scholarly journals Computerized EEG monitoring of anesthetic depth: Quo Vadis?

2000 ◽  
Vol 47 (10) ◽  
pp. 1044-1045 ◽  
Author(s):  
D. John Doyle
Keyword(s):  
Eeg Monitoring ◽  
Anesthetic Depth ◽  
Quo Vadis ◽  
Computerized Eeg

Understanding Computerized EEG Monitoring in the Intensive Care Unit

1995 ◽  
Vol 27 (5) ◽  
pp. 292-297 ◽  
Author(s):  
Cynthia E. Buzea
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Eeg Monitoring ◽  
Computerized Eeg

Computerized EEG monitoring

1999 ◽  
Vol 6 (2) ◽  
pp. 120-127 ◽  
Author(s):  
Bernard Rosenblatt ◽  
Jean Gotman
Keyword(s):  
Eeg Monitoring ◽  
Computerized Eeg

Use of computerized electroencephalographic monitoring during aneurysm surgery

1989 ◽  
Vol 71 (1) ◽  
pp. 24-31 ◽  
Author(s):  
Rene Tempelhoff ◽  
Paul A. Modica ◽  
Keith M. Rich ◽  
Robert L. Grubb
Keyword(s):  
Cerebral Perfusion ◽  
Neurological Deficits ◽  
Electrode Placement ◽  
Eeg Monitoring ◽  
Aneurysm Surgery ◽  
Anterior Circulation ◽  
Content Type ◽  
Eeg Abnormalities ◽  
Computerized Eeg ◽  
Eeg Pattern

✓ The clinical usefulness of intraoperative electroencephalographic (EEG) monitoring of cerebral perfusion during aneurysm surgery has received little attention, primarily due to problems with electrode placement over the operative site, which is the area of maximal risk. In this report, 27 patients undergoing surgery for anterior circulation aneurysms were monitored intraoperatively with a two-channel computerized EEG complex using a bilateral frontal-occipital montage. In 16 patients, a normal EEG pattern was observed throughout surgery; all 16 awoke neurologically intact and their postoperative angiograms did not reveal cerebral vasospasm. In the other 11 patients, one of two patterns of persistent EEG abnormalities was identified. 1) In six of these patients a marked attenuation of EEG activity was observed ipsilaterally which coincided with various intraoperative events including brain retraction, hypotension, and aneurysm dissection/clipping. Five of these six patients awoke with new neurological deficits which persisted beyond 12 hours in two, both of whom had angiographically proven vasospasm 24 hours after surgery. 2) In the remaining five patients, a distinct abnormal EEG pattern consisting of marked hyperactivity in the delta, theta, and alpha frequency ranges was observed ipsilaterally. Four of these five patients had a poor neurological outcome and vasospasm on their angiogram 24 hours after surgery. Thus, EEG monitoring which spans the operative area during aneurysm surgery is practicable and appears to be of value in the detection of compromised cerebral perfusion during aneurysm surgery. The possible significance of the two abnormal EEG patterns identified in this report is discussed.

Computerized EEG monitoring and carotid endarterectomy

1988 ◽  
Vol 2 (5) ◽  
pp. 722-723 ◽  
Author(s):  
Paul A. Modica ◽  
Rene Tempelhof ◽  
Robert E. Nevett
Keyword(s):  
Carotid Endarterectomy ◽  
Eeg Monitoring ◽  
Computerized Eeg

Selective Shunting During Carotid Endarterectomy Based on Two-Channel Computerized Electroencephalographic/Compressed Spectral Array Analysis

Neurosurgery ◽  
1989 ◽  
Vol 24 (3) ◽  
pp. 339-344 ◽  
Author(s):  
Rene Tempelhoff ◽  
Paul A. Modica ◽  
Robert L. Grubb ◽  
Keith M. Rich ◽  
Barbel Holtmann
Keyword(s):  
High Frequency ◽  
Eeg Monitoring ◽  
Array Analysis ◽  
Amplitude Attenuation ◽  
Neurological Exam ◽  
On Line ◽  
High Frequency Activity ◽  
Computerized Eeg ◽  
Electroencephalogram Eeg ◽  
Angiographic Findings

Abstract The reliability of selective shunting based on computerized electroencephalographic (EEG) monitoring has not been addressed. In this study, 103 carotid endarterectomies were performed with selective shunting based on a two-channel computerized EEG monitor that processed the on-line, raw electroencephalogram (EEG) to produce a compressed spectral array (CSA). Ischemic EEG events were identified by amplitude attenuation of the raw EEG and/or loss of high-frequency activity on the CSA. Fourteen patients (13.6%) received a bypass shunt, and postoperative neurological examinations showed 97 patients (94.2%) to be intact. A correlation between total (cumulative) ischemic EEG time and the postoperative neurological exam was demonstrated (P < 0.0001). Six postoperative deficits (5.8%) occurred, five in patients whose computerized EEGs demonstrated an ischemic EEG event late during carotid clamping, when it was no longer possible to place a shunt. The sixth deficit was found in a patient whose EEG did not demonstrate any signs of cerebral ischemia. Five of these six new deficits resolved within 12 hours, and only one persisted for 72 hours, when the patient died of a pulmonary embolism (cerebral infarction and mortality rate of 1%). These results appear to demonstrate that two-channel monitoring of both the CSA and the unprocessed (raw) EEG simultaneously can be used as a reliable indicator of whether a bypass shunt is required during carotid cross-clamping in all patients, regardless of their preoperative neurological history or angiographic findings.

Early detection of cerebral ischaemia by computerized eeg monitoring results during 132 carotid endarterectomies

1989 ◽  
Vol 3 (5) ◽  
pp. 72 ◽  
Author(s):  
R. Tempelhoff ◽  
P. Modica ◽  
R. Grubb ◽  
K. Rich
Keyword(s):  
Early Detection ◽  
Cerebral Ischaemia ◽  
Eeg Monitoring ◽  
Computerized Eeg

Design principles for computerized EEG monitoring

1992 ◽  
Vol 82 (4) ◽  
pp. 239-247 ◽  
Author(s):  
Ronald P Lesser ◽  
W.R.S Webber ◽  
Robert S Fisher
Keyword(s):  
Design Principles ◽  
Eeg Monitoring ◽  
Computerized Eeg

Zwölf Jahre Erfahrung in der Schweiz: Quo vadis BSE?

2002 ◽  
Vol 144 (12) ◽  
pp. 716-727 ◽  
Author(s):  
P. Schaller ◽  
H. Schwermer ◽  
D. Heim
Keyword(s):  
Quo Vadis

Ethik – Quo vadis? Anmerkungen zur Debatte um die Sterbehilfe

2017 ◽  
Vol 74 (2) ◽  
pp. 7-10
Author(s):  
Jean-Pierre Wils
Keyword(s):  
Quo Vadis

Zusammenfassung. Die Ethik kann auf eine eindrucksvolle Renaissance zurückblicken. Nachdem die grossen politischen Emanzipationsprojekte ihren Glanz in den siebziger Jahren des letzten Jahrhunderts verloren hatten und sich am Horizont neue biomedizinische Entwicklungen abzeichneten (Stichwort „Gentechnologie“), war die Ethik gefragt. In einigen Fällen hatte sie vor allem eine begrenzende, also limitierende Funktion, in anderen Fällen eine erlaubende, also eine lizenzierende Funktion. Aber seit einiger Zeit wächst das Gefühl einer gewissen Ohnmacht. Die Wandlungen im Autonomie-Begriff und die Entwicklungen in der Diskussion um die Sterbehilfe können das verdeutlichen. Ein neues Menschenbild hat sich durchgesetzt, dessen Dynamik ethisch kaum mehr zu steuern ist.

Sign in / Sign up

Export Citation Format

Share Document