1993
DOI: 10.1007/bf02576228
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Ketamine-diazepam N2O combination anesthesia—a new “circulatory-system-sparing” type of anesthetic in experimental surgery

Abstract: For studying the hemodynamics of the greater and lesser circulatory system in animals, the impact of general anesthesia upon cardiovascular functions should be as small, as possible. The marked circulation-depressing effect of halothane, which has so far been given preference for experiments on large animals, was confirmed by the present study of the miniature pig. There was a significant decrease in MAP, cardiac index and dp/dtmax/IP, and an increase in PAPp. Useful insights into hemodynamics, derived from ex… Show more

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Cited by 4 publications
(3 citation statements)
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“…The addition of supplementary anesthetics deepens anesthesia and enables major surgery to be performed [6]. Lessler et al [11] describe the combination of ketamine, diazepam and laughing gas as a new "circulatory-systemsparing" type of anesthesia. Their investigations were conducted over a period of 2 h. In long-term studies, like ours it is not sensible to use N 2 O because it diffuses into cavities and the animals develop high-grade thympania.…”
Section: Discussionmentioning
confidence: 99%
“…The addition of supplementary anesthetics deepens anesthesia and enables major surgery to be performed [6]. Lessler et al [11] describe the combination of ketamine, diazepam and laughing gas as a new "circulatory-systemsparing" type of anesthesia. Their investigations were conducted over a period of 2 h. In long-term studies, like ours it is not sensible to use N 2 O because it diffuses into cavities and the animals develop high-grade thympania.…”
Section: Discussionmentioning
confidence: 99%
“…Esse fato é explicado pela ação dos benzodiazepínicos, que reduzem a atividade funcional do hipotálamo e córtex, com ação sobre o GABA, inibindo o sistema nervoso central e promovendo ação tranquilizante, hipnótica, ansiolítica e miorrelaxante (Spinosa et al, 2002 Neste estudo, ficou demonstrado que o midazolam isolado ou associado à cetamina e/ou detomidina apresentou efeitos benéficos, já observados em outras espécies (Hellyer et al, 1991;Jacobson e Hartsfield, 1993;Lesser et al, 1993;Guedes et al, 2002). A ataxia, o abaixamento da cabeça e a indiferença ao ambiente conferida pelo midazolam facilitaram a abordagem e a contenção física dos potros, uma vez que estes se apresentavam sedados, demonstrando que essa substância na dose preconizada de 0,2mg/kg induziu os efeitos hipnóticos e miorrelaxantes (Fantoni e Cortopassi, 2002;Massone, 2003).…”
Section: Resultsunclassified
“…Observações semelhantes também foram relatadas por Hellyer et al (1991), Jacobson e Hartsfield (1993) e por Lesser et al (1993), quando o óxido nitroso foi adicionado à cetamina-diazepam em suínos. Portanto, os resultados obtidos neste estudo confirmam que a estabilidade cardio-respiratória conferida após o uso do midazolam, pela via intramuscular, permite indicá-lo como opção segura para uso em procedimentos de pré-anestesia de potros hígidos.…”
Section: Resultsunclassified