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| Ido,C.K.; Silva,P.E.S.; Silva,H.R.A.; Biteli,E.G.F.; Carneiro,R.L.; Lopes,P.C.F.; Gering,A.P.; Nunes,N.. |
| ABSTRACT This study aimed to evaluate comparatively the effects of propofol or isoflurane on hemodynamic variables in piglets that received inspired oxygen fraction (FIO2) of 0.5 under spontaneous ventilation. Therefore, sixteen piglets weighing 16±1.1kg, were randomly divided into two groups: GI (Isoflurane and FIO2 of 0.5) and GP (Propofol and FIO2 of 0.5). Heart rate (HR), systolic, diastolic and mean arterial pressure (SAP, DAP and MAP), central venous pressure (CVP), cardiac output (CO), mean pulmonary arterial pressure (mPAP) and mean capillary pulmonary pressure (mCPP) were assessed 40 minutes after anesthetic induction (T0), followed by 15 minutes intervals (from T15 to T60). The variables cardiac index (CI), stroke volume (SV), stroke index (SI),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pigs; Inhalation; Intravenous; Oxygen; Cardiovascular. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000601846 |
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| Afferent nerves carrying signals from mechanoreceptors in the aortic arch and carotid sinus terminate predominantly in the nucleus tractus solitarii (NTS). Signal transduction and neurotransmission in the NTS are critical for central cardiovascular reflex control, but little was known about either until the late 1970's. None of the numerous neuroactive chemicals found in the NTS had met strict criteria as a neurotransmitter in the baroreflex arc until data suggested that the excitatory amino acid L-glutamate (GLU) might be released from baroreceptor afferent terminals in the NTS. In anesthetized animals microinjection into the NTS of GLU, which can be demonstrated in terminals in the NTS, produces cardiovascular responses like those seen with activation of... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Glutamate; Nucleus tractus solitarii; Baroreceptor reflex; Cardiovascular; Vagus; Mechanoreceptors. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000100001 |
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| Pita,L.M.; Spadella,M.A.; Montenote,M.C.; Oliveira,P.B.; Chies,A.B.. |
| This study investigated the repercussions of adjuvant-induced arthritis (AIA) on body composition and the structural organization of the soleus and cardiac muscles, including their vascularization, at different times of disease manifestation. Male rats were submitted to AIA induction by intradermal administration of 100 μL of Mycobacterium tuberculosis (50 mg/mL), in the right hind paw. Animals submitted to AIA were studied 4 (AIA4), 15 (AIA15), and 40 (AIA40) days after AIA induction as well as a control group of animals not submitted to AIA. Unlike the control animals, AIA animals did not gain body mass throughout the evolution of the disease. AIA reduced food consumption, but only on the 40th day after induction. In the soleus muscle, AIA reduced the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Experimental arthritis; Cachexia; Musculoskeletal; Microcirculation; Cardiovascular; Body composition. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000300607 |
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| Almeida,Vívian Tavares de; Uscategui,Ricardo Andres Ramirez; Silva,Priscila Del Aguila da; Avante,Michele Lopes; Simões,Ana Paula Rodrigues; Vicente,Wilter Ricardo Russiano. |
| ABSTRACT: Throughout pregnancy, maternal hemodynamic adaptation is needed to ensure proper uterine perfusion and fetal development. When the uteroplacental vascular system is formed, starting with reduced resistance to uterine arterial flow, this results in decreased total vascular resistance, an activation of neuroendocrine vasoactive peptides, an increase in circulating blood and changes in the cardiovascular system morphophysiology to respond to the increasing demands of uterine perfusion. There has been considerable study of hemodynamic adaptation in pregnant women and this assessment has become a diagnostic tool for fatal obstetric disorders. However, in bitches the available information in this regard is limited; therefore a parallel was drawn... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cardiovascular; Pregnancy; Gestation; Morphophysiology; Dogs. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700601 |
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| Souza,Almir Pereira de; Nishimori,Celina Tie; Santos,Paulo Sérgio Patto dos; Paula,Danielli Parrilha de; Nunes,Newton; Rezende,Márlis Langenegger de; Henao-Guerrero,Piedad Natalia. |
| Objetivou-se avaliar comparativamente os efeitos da buprenorfina, administrada pelas vias intramuscular(IM) ou intravenosa (IV), sobre variáveis cardiovasculares, em cães anestesiados com desfluorano. Para tanto, foram utilizados dezesseis cães adultos, clinicamente saudáveis, distribuídos em dois grupos (n=8) denominados de GI e GII. Em ambos os grupos, a anestesia foi induzida com propofol (8 mg/kg, IV) e em seguida os animais foram intubados com sonda orotraqueal de Magill, a qual foi conectada ao aparelho de anestesia volátil para administração de desfluorano (1,5 CAM). Após 30 minutos do início da anestesia inalatória, foi aplicado no GI buprenorfina na dose de 0,02 mg/kg pela via IV, enquanto no GII administrou-se o opióide na mesma dose porém pela... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Opióides; Cardiovascular; Anestesia inalatória. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000300024 |
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