Electrocardiographic changes during surface-induced deep hypothermia. The influence of ether, halothane, carbon dioxide, and perfusion rewarming.
Ann Thorac Surg
; 19(4): 386-96, 1975 Apr.
Article
en En
| MEDLINE
| ID: mdl-1122162
The influence of halothane, ether, carbon dioxide, and perfusion rewarming on the electrocardiogram was studied in 37 dogs subjected to surface-induced deep hypothermia. Significant anesthetic-related differences in P-R, QRS, Q-T and R-R intervals during cooling were not apparent; however, reduced arterial pressure, ventricular fibrillation, and a greater tendency for bradycardia requiring supportive measures were noted at low temperatures with halothane anesthesia. The use of 95% O2/5% CO2 significantly reduced the QTc at low temperatures; Other phenomena, including the occurrence and significance of J waves, are discussed. The relationship of the electrocardiogram to clinical and pathological results was evaluated and indicates that (1) properly managed resuscitation (manual massage and defibrillation) is not a serious hazard, (2) ether in 100% oxygen is the agent of choice for surface-induced deep hypothermia with prolonged circulatory arrest, and (3) halothane may be used in a procedure combining surface cooling and perfusion rewarming if given in a mixture of oxygen and carbon dioxide.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Arritmias Cardíacas
/
Dióxido de Carbono
/
Éteres de Etila
/
Halotano
/
Corazón
/
Hipotermia Inducida
Tipo de estudio:
Guideline
Límite:
Animals
Idioma:
En
Revista:
Ann Thorac Surg
Año:
1975
Tipo del documento:
Article
Pais de publicación:
Países Bajos