Influence of stimulatory parameters on simus node recovery time: an in vitro study
Braz. j. med. biol. res
; 21(5): 1079-82, 1988. tab
Artigo
em Inglês
| LILACS
| ID: lil-63616
Biblioteca responsável:
BR26.1
ABSTRACT
The effects of pacing frequency, overdrive duration and stimulus amplitude on the sinus node recovery time (SNRT) were studied in the isolated right atrium of the rat. a positive relationship between pacing frequency and the SNRT was observed, whereas overdrive duration ans stimulus amplitude did not affect SNRT. There was no significant interaction among the factors studied. The effect of frequency upon SNRT probably does not involve neurotransmitter release due to stimulation, since in vitro pretreatment with atropine plus propranolol does change the SNRT - frequency relation
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Base de dados:
LILACS
Assunto principal:
Nó Sinoatrial
/
Técnicas In Vitro
/
Estimulação Cardíaca Artificial
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Frequência Cardíaca
Limite:
Animais
Idioma:
Inglês
Revista:
Braz. j. med. biol. res
Assunto da revista:
Biologia
/
Medicina
Ano de publicação:
1988
Tipo de documento:
Artigo
/
Congresso e conferência
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Documento de projeto