1989
DOI: 10.1097/00000542-198910000-00015
|View full text |Cite
|
Sign up to set email alerts
|

Cardiac Electrophysiologic Effects of Fentanyl and Sufentanil in Canine Cardiac Purkinje Fibers

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
2

Citation Types

1
17
0
3

Year Published

1993
1993
2008
2008

Publication Types

Select...
5
3

Relationship

0
8

Authors

Journals

citations
Cited by 38 publications
(21 citation statements)
references
References 0 publications
1
17
0
3
Order By: Relevance
“…Wilton and Hantler [19] reported that fentanyl is associated with a decrease in the QTc interval in a patient with long QT syndrome, whereas another study showed QTc prolongation after fentanyl injection in patients undergoing coronary artery bypass grafting [13]. Recently, it was reported in a study using human cardiac myocytes that opioid agonists, including fentanyl, can block cardiac potassium currents, which suggests that fentanyl may prolong action potential duration related to QT interval prolongation [24,25]. According to our results showing that the QTc interval at 5 min after administration of fentanyl did not change, fentanyl is likely not to have an effect on the QTc interval, although further evaluations are needed to substantiate this conclusion.…”
Section: Discussionmentioning
confidence: 99%
“…Wilton and Hantler [19] reported that fentanyl is associated with a decrease in the QTc interval in a patient with long QT syndrome, whereas another study showed QTc prolongation after fentanyl injection in patients undergoing coronary artery bypass grafting [13]. Recently, it was reported in a study using human cardiac myocytes that opioid agonists, including fentanyl, can block cardiac potassium currents, which suggests that fentanyl may prolong action potential duration related to QT interval prolongation [24,25]. According to our results showing that the QTc interval at 5 min after administration of fentanyl did not change, fentanyl is likely not to have an effect on the QTc interval, although further evaluations are needed to substantiate this conclusion.…”
Section: Discussionmentioning
confidence: 99%
“…Por este motivo, nos pacientes desta pesquisa clínica, a dose de indução da dexmedetomidina foi infundida em 10 minutos. Em ambos os grupos houve estabilidade hemodinâmica, porém foram observados valores mais baixos para pressões arteriais sistólica e diastó-lica e para freqüência cardíaca nos pacientes de G1 [11][12][13] , mesmo sendo relatados, com o uso do a 2 -agonista, casos de bradicardia ou hipotensão arterial, o que pode ser esperado durante a sua utilização 14 (Figuras 1, 2 e 3). A principal diferença entre os a 2 -agonistas e algumas outras drogas que reduzem a freqüência cardíaca é o mecanismo de ação.…”
Section: Resultsunclassified
“…Em nosso estudo, não houve diferença significativa entre as doses totais de propofol para os dois grupos estudados (1251 mg ± 596 em G1 e 1341 mg ± 478 em G2). Algumas das principais complicações observadas (Tabela IV) em G1 na SO podem ser atribuídas ao opióide e foram broncoespasmo 25 , hipotensão arterial 11 e bradicardia 12 e na SRPA, depressão respiratória recorrente 26,27 , náuseas e vô-mitos 28 , tremores 29 e retenção urinária 30 . Como conseqüên-cia, o tempo de permanência na SRPA para G1 foi significativamente maior do que para G2 19 (Figura 4).…”
Section: Resultsunclassified
“…Initially, it was attributed to a central-mediated mechanism; however, Morphine is known to exert a direct effect on the sinoatrial node and atrioventricular conduction 22,23 . On the other hand, sufentanil prolongs the duration of the action potential in Purkinje fibers in dogs [24][25][26] 28 . However, these direct electrophysiological effects of fentanyl were not observed in human beings 29 .…”
Section: Discussionmentioning
confidence: 99%
“…Inicialmente esse quadro foi atribuído a mecanismo centralmente mediado; entretanto, sabe-se que a morfina apresenta um efeito direto no nódulo sinoatrial e na condução atrioventricular 22,23 . Já o sufentanil prolonga a duração do potencial de ação em fibras de Purkinje de cães [24][25][26] . Da mesma forma, Reitan e col. atribuíram 10% da bradicardia, causada pelo fentanil em cães, à sua ação periférica e não apenas vagotônica central 27 .…”
Section: Discussionunclassified