Results 11 to 20 of about 178,646 (72)

Altered excitation-contraction coupling in human chronic atrial fibrillation [PDF]

, 2012
This review focuses on the (mal)adaptive processes in atrial excitation-contraction coupling occurring in patients with chronic atrial fibrillation. Cellular remodeling includes shortening of the atrial action potential duration and effective refractory ...
Grandi, E., Pandit, S.V., Workman, A.J.
core   +7 more sources

Locais de Reconexão na Técnica de Reablação após Isolamento das Veias Pulmonares com Criobalão em Pacientes com Fibrilação Atrial Paroxística

Arquivos Brasileiros de Cardiologia, 2021
Resumo Fundamento Na fibrilação atrial paroxística (FAP), o isolamento das veias pulmonares com criobalão (IVP-CB) tem eficácia semelhante à da ablação por radiofrequência (IVP-RF). Em procedimentos de reablação após IVP-RF, a reconexão das VPs é alta,
Rogelio Robledo Nolasco, Gerardo De Leon-Larios, David Eduardo Bazzini-Carranza, Elias Zavaleta, Omar Calixto-Vargas   +4 more
doaj   +2 more sources

Post-operative atrial fibrillation is influenced by beta-blocker therapy but not by pre-operative atrial cellular electrophysiology [PDF]

, 2006
We investigated whether post-cardiac surgery (CS) new-onset atrial fibrillation (AF) is predicted by pre-CS atrial cellular electrophysiology, and whether the antiarrhythmic effect of beta-blocker therapy may involve pre-CS pharmacological remodeling ...
Marshall, Gillian E., Russell, Julie A., Pau, David, Kane, Kathleen A., Workman, Antony J., Rankin, Andrew C., Redpath, Calum J., Norrie, John   +7 more
core   +5 more sources

Ectopias atriais e associação com fibrilação atrial

Journal of Cardiac Arrhythmias, 2017
Instabilidade elétrica atrial é um termo recentemente incorporado na prática médica para descrever o amplo espectro de arritmias atriais que se sobrepõem.
Jônatas Melo Neto, Bruno Pereira Valdigem   +1 more
doaj   +4 more sources

Taquicardia atrial focal incesante como causa de cardiomiopatía. A propósito de un caso [PDF]

, 2021
La taquicardia atrial focal es un tipo de taquiarritmia supraventricular poco prevalente, generalmente presente en jóvenes, y constituye una causa rara de taquicardiomiopatía (10%).
Luis Parada Porras, Richard Soto Becerra, Carlos Lobato Jeri, Alarco León, Walter Alberto, Soto Becerra, Richard, Juan Manuel Muñoz Moreno, Walter Alarco León, Lobato Jeri, Carlos, Alarco León, Walter, Muñoz Moreno, Juan Manuel, Parada Porras, Luis   +10 more
core   +1 more source

Electrophysiological and arrhythmogenic effects of 5-hydroxytryptamine on human atrial cells are reduced in atrial fibrillation [PDF]

, 2007
5-Hydroxytryptamine (5-HT) is proarrhythmic in atrial cells from patients in sinus rhythm (SR) via activation of 5-HT₄ receptors, but its effects in atrial cells from patients with atrial fibrillation (AF) are unknown.
Kane, K.A., Kane, Kathleen A., Rankin, A.C., Workman, Antony J., Pau, Davide, Workman, A.J., Rankin, Andrew C., Pau, D.   +7 more
core   +1 more source

Atrial cellular electrophysiological changes in patients with ventricular dysfunction may predispose to AF [PDF]

, 2009
<b>Background:</b> Left ventricular systolic dysfunction (LVSD) is a risk factor for atrial fibrillation (AF), but the atrial cellular electrophysiological mechanisms in humans are unclear.
Marshall, G.E., Kane, K.A., Redpath, C.J., Redpath, C., Platonov, Pyotr, Russell, J.A., Rankin, A.C., Norrie, J., Workman, A.J., Pau, D., Platonov, Pyotr,, Lund University.   +11 more
core   +1 more source

Role of the liver in splanchnic extraction of atrial natriuretic factor in the rat [PDF]

, 1992
Mesenteric, hepatic and splanchnic extraction of C-terminal and N-terminal atrial natriuretic factor was investigated in male Sprague-Dawley rats. Plasma concentrations (mean ± S.E.M.) of C-terminal atrial natriuretic factor were 55.0 ± 6.1 fmol/ml, 31.2
Dieter Jungst, Witthaut, Rochus, Thibault, Gaétan, Manfred Bilzer, Alexander L. Gerbes, Jüngst, Dieter, Gülberg, Veit, Bilzer, Manfred, Gerbes, Alexander L., L Veit Gulberg, Rochus Witthaut, Gaétan Thibault, Veit Gülberg   +12 more
core   +1 more source

Tormenta arrítmica en el contexto de un síndrome de QT largo inducido por amiodarona

Horizonte Médico
Se reporta un caso de importancia clínica, al tratarse del primero en ser publicado en la región. Se trata de un paciente que ingresó al hospital por el servicio de emergencia tras cuatro días de enfermedad.
Anibal Diaz-Lazo, Milagros Mallma Gomez, Noelia Cacho Maldonado, Zoeli Garayar Socualaya, Carlos Barrientos Huamani, Carlo Cordova Rosales   +5 more
doaj   +1 more source

Atrial natriuretic factor (ANF) and renin-aldosterone in volume regulation of patients with cirrhosis [PDF]

, 1989
The role of the atrial natriuretic factor and of the main counteracting sodium-retaining principle, the renin-aldosterone system, in acute volume regulation of cirrhosis of the liver has been investigated.
Arendt, Rainer M., Paumgartner, Gustav, Wernze, Heinrich, Riedel, Angelika, Gerbes, Alexander L., Sauerbruch, Tilman   +5 more
core   +1 more source