The Significance of Electroencephalography in the Hypothermic Circulatory Arrest in Human / 대한흉부외과학회지
The Korean Journal of Thoracic and Cardiovascular Surgery
; : 465-471, 2001.
Artigo
em Coreano
| WPRIM (Pacífico Ocidental)
| ID: wpr-214662
Biblioteca responsável:
WPRO
ABSTRACT
BACKGROUND:
Hypothermia protects the brain by suppressing the cerebral metabolism and it is performed well enough before the total circulatory arrest(TCA) in the operation of aortic disease. Generally, TCA has been performed depending on the rectal or nasopharyngeal temperatures; however, there is no definite range of optimal temperature for TCA or an objective indicator determining the temperature for safe TCA. In this study, we tried to determine the optimal range of temperature for safe hypothermic circulatory arrest by using the intraoperative electroencephalogram(EEG), and studied the role of EEG as an indicator of optimal hypothermia. MATERIAL ANDMETHOD:
Between March, 1999 and August 31, 2000, 27 patients underwent graft replacement of the part of thoracic aorta using hypothermia and TCA with intraoperative EEG. The rectal and nasopharyngeal temperatures were monitored continuously from the time of anesthetic induction and the EEG was recorded with a ten-channel portable electroencephalography from the time of anesthetic induction to electrocerebral silence(ECS).RESULT:
On ECS, the rectal and nasopharyngeal temperatures were not consistent but variable(rectal 11degree C -25degree C, nasopharynx 7.7degree C -23degree C). The correlation between two temperatures was not significant(p=0.171). The cooling time from the start of cardiopulmonary bypass to ECS was also variable(25-127min), but correlated with the body surface area(p=0.027).CONCLUSION:
We have found that ECS appeared at various body temperatures, and thus, the use of rectal or nasopharyngeal temperature were not useful in identifying ECS. Conclusively, we can not fully assure cerebral protection during hypothermic circulatory arrest in regards to the body temperatures, and therefore, the intraoperative EEG is one of the necessary methods for determining the range of optimal hypothermia for safe circulatory arrest.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Aorta Torácica
/
Doenças da Aorta
/
Temperatura Corporal
/
Encéfalo
/
Ponte Cardiopulmonar
/
Nasofaringe
/
Transplantes
/
Eletroencefalografia
/
Hipotermia
/
Metabolismo
Tipo de estudo:
Estudo prognóstico
Limite:
Humanos
Idioma:
Coreano
Revista:
The Korean Journal of Thoracic and Cardiovascular Surgery
Ano de publicação:
2001
Tipo de documento:
Artigo