A marked decrease in bispectral index with elevation of suppression ratio by cervical haematoma reducing cerebral perfusion pressure.
J Clin Neurosci
; 10(6): 694-6, 2003 Nov.
Article
em En
| MEDLINE
| ID: mdl-14592622
ABSTRACT
A 77-year-old man with a ruptured abdominal aortic aneurysm undergoing aneurysmectomy were anaesthetised with ketamine under bispectral index (BIS) monitoring, which is a clinical EEG monitor for measurement of depth of anaesthesia/sedation. First marked BIS reduction with elevation of suppression ratio (SR) was observed following severe hypotension by deflation of the aortic occlusion balloon. The re-inflation and rapid blood transfusion improved haemodyanamics and BIS and SR. At second marked BIS reduction with SR elevation, a heavy cervical swelling due to a massive subcutaneous haematoma around the previously mis-punctured right carotid artery extending throughout the whole neck was observed without hypotension. Cervical relief incision improved the BIS and SR. The present case suggests that BIS monitor may be a simple and convenient monitor for cerebral ischaemia detection.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Cateterismo Venoso Central
/
Monitorização Intraoperatória
/
Hipotensão Intracraniana
/
Lesões das Artérias Carótidas
/
Hipóxia-Isquemia Encefálica
/
Hematoma
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
Idioma:
En
Ano de publicação:
2003
Tipo de documento:
Article