5 documents found, page 1 of 1
Sífilis: passado e presente
Gomes, C; Xavier, R
Acute Vagal Modulation of Electrophysiology of the Atrial and Pulmonary Veins I...
Oliveira, MM; Nogueira da Silva, M; Geraldes, V; Xavier, R; Laranjo, S; Silva, V; Postolache, G; Cruz Ferreira, R; Rocha, IVagal activity is thought to influence atrial electrophysiological properties and play a role in the initiation and maintenance of atrial fibrillation (AF). We evaluated the effects of acute vagal stimulation on atrial conduction, refractoriness of atrial and pulmonary veins (PVs) and inducibility of AF. An open-chest epicardial approach was performed in New Zealand White rabbits with preserved autonomic innerv...
Impacto da Estimulação Vagal na Indução e Interrupção de Fibrilhação Auricular ...
Oliveira, MM; Nogueira da Silva, M; Geraldes, V; Postolache, G; Xavier, R; Laranjo, S; Rocha, I; Cruz Ferreira, R; Silva-Carvalho, LINTRODUCTION: Vagal activity is thought to influence atrial electrophysiological properties and play a role in the initiation and maintenance of atrial fibrillation (AF). In this study, we assessed the effects of acute vagal stimulation (vagus_stim) on atrial conduction times, atrial and pulmonary vein (PV) refractoriness, and vulnerability to induction of AF in the rabbit heart with intact autonomic innervatio...
Alterações da Actividade Autonómica Durante o Teste de Inclinação em Doentes co...
Oliveira, MM; Nogueira da Silva, M; Timóteo, AT; Feliciano, J; Silva, S; Xavier, R; Rocha, I; Silva-Carvalho, L; Cruz Ferreira, RThe autonomic nervous system (ANS) is known to be an important modulator in the pathogenesis of paroxysmal atrial fibrillation (PAF). Changes in ANS control of heart rate variability (HRV) occur during orthostatism to maintain cardiovascular homeostasis. Wavelet transform has emerged as a useful tool that provides time-frequency decomposition of the signal under investigation, enabling intermittent components o...
Lyell's syndrome in an AIDS patient.
Quintas, S; do Carmo, G; Gama, R; Norberto, A; Xavier, R; Coutinho, B SToxic epidermal necrolysis (TEN), or Lyell's syndrome, is a rare cutaneous reaction, most often drug related with drugs such as sulfonamides, non-steroidal anti-inflammatory drugs, anti-convulsants and allopurinol. It is characterised by extensive mucocutaneous detachment and usually associated with severe constitutional symptoms. The mortality rate is about 20-66%. The incidence of TEN is increasing among HIV-...