Veja grátis o arquivo Eletrofisiologia cardíaca enviado para a disciplina de Fisiologia Categoria: Anotações – Veja grátis o arquivo Aula de eletrofisiologia cardiaca e ECG enviado para a disciplina de Cardio Categoria: Aulas – 2 – Análise dos efeitos do 2,6-Diisopropilfenol sobre a eletrofisiologia cardíaca em pacientes com ectopias de via de saída ventricula. Propofol is an effective.

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Aula de eletrofisiologia cardiaca e ECG

Programmed Electrical Stimulation in Mice. The atrial depolarization wavefront, represented by the P-wave on the ECG, spreads initially downward in the right atrium, and ends as a primarily leftward vector in the left atrium.

Please sign in or create an account. Such practice is based on individual observations and has no backing in scientific publications. Conduction through the AV Node is normally slow. Fill out the form below to receive a free trial or learn more about access:.

Eletrofisiologia Cardíaca do Paraná | trabalhinhos para Amandinha | Pinterest

We cardiava downloading the newest version of Flash here, but we support all versions 10 and fletrofisiologia. The AV node slows impulse conduction, which allows time for the atria to contract and for blood to be pumped from the atria to the ventricles prior to ventricular contraction. You will only be able to see the first 20 seconds.

This takes place slowly, and generates a wide wave. Normally, the electrical impulse moves through the heart’s conduction system, and the heart contracts.

These variables were collected before and cardiqca the intravenous infusion of propofol aiming to achieve a target sedation titrated by bispectral index BIS between 40 and The suspicion that the infusion of this agent can suppress this type of arrhythmia causes propofol to be deferred as sedative drug in electrophysiological eletrfoisiologia procedures that aim at the ablation of foci of this arrhythmic disorder.

Ten patients with ventricular outflow tract arrhythmias without eletrfoisiologia heart disease were selected and indicated for the treatment of ablation. The bundle of His divides into right and left pathways to provide electrical stimulation to both ventricles. Close-up do cateter 1. An unexpected error occurred. Just below the AV node, the impulse passes through the bundle of His. Not only will this give you access to this article but will provide you cardiafa the opportunity to access other content.


Could you please help me LL. The objective of this work is to propose a study model for the evaluation of the interference of 2,6-diisopropylphenol in cardiac electrophysiological variables and to analyze the effects of propofol on arrhythmias that conceptually have as a mechanism the activities triggered by late post-potentials. Hi, Why this article is not access for allI really need the eletrofixiologia but unfortunately I can not use it.

Optical Mapping of Langendorff-perfused Rat Hearts. If that doesn’t help, please let us know.

At baseline and under programmed atrial and ventricular pacing, data were collected from 17 seventeen cardiac electrophysiological variables: Please recommend JoVE to your librarian.

Fletrofisiologia I’d like to thank you for your interest in JoVE. Get cutting-edge science videos from J eletrofisillogia VE sent straight to your inbox every month. Fill out the form below to receive a free trial or learn more about access: Diagnostic catheters were positioned in the coronary sinus, right ventricle and anteroseptal region of the tricuspid ring for atrial, eletrofsiologia and HIS potentials, respectively. The mechanisms involved in such effects remain poorly defined, but possibly involve ion channels such as sodium, calcium, and potassium as well as modulations in the autonomic nervous system.

A small portion of the last part of the PR interval is represented by the eletrofisiokogia time through the bundle of His. Unable to load video. A small portion of the last part of the PR interval is represented by the conduction time through the bundle branches. Figura modificado a partir Mathur et al. Recent studies have demonstrated that this drug exerts effects on the cardiac conduction system having both pro-arrhythmic and antiarrhythmic effects in a concentration-dependent manner.

For other languages click here. However, we have not found in the literature studies on the effects of propofol on post-potency-triggered arrhythmias that represent one of the most frequent dletrofisiologia of ventricular arrhythmias.


These effects seem to be You must be signed in to post a comment.

Eletrofisiologia do coração – Wikipédia, a enciclopédia livre

The atria contract a fraction of a second before the ventricles so the blood empties into the ventricles before the ventricles contract. If the normal conduction pathway is interrupted,another part of the heart takes over as pacemaker. Analysis of the data presented showed that the infusion of propofol in doses titrated by the bispectral index did not seem to interfere in the Expression of ventricular arrhythmias triggered by late post-potentials when these were manifested as ventricular extrasystoles.

Similar Items Alteracoes circadianas da funcao autonomica cardiaca em pacientes hipertensos com hipertrofia ventricular esquerda by: The septal fascicles of the Left Bundle Branch cause the first wave of ventricular depolarization, in a left-to-right direction across the septum, creating a Q-wave in leads I and II, and an R-wave in lead III.

Under some conditions, almost all heart tissue is capable of starting a heartbeat automaticityor becoming the “pacemaker,” just like the sinus node. Monteiro, Helena Serra Azul. Enviado por Gabriela flag Denunciar.

Please check your Internet connection and reload this page. These effects seem to be more important when the mechanism involved in arrhythmias is hyperautomatism with few effects on reentrant arrhythmias.

Located between the Atrium and the Ventricles in the interatrial septum close to the tricuspid valve Receives the impulse from the SA Node and delivers it through the Bundle of His the forefront of the His-Purkinje network Produces rates at BPM if the SA Node fails to fire Conduction through the AV Node is slow, allowing appropriate fill time for the ventricles prior to ventricular contraction.

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