Excessive prolongation of the action potential can result in spontaneous early after-depolarization (EAD) during the repolarization phase, which can trigger further excitation. (D) A diagram illustrating hypothetically how torsades de pointes arrhythmia might arise from a combination of EADs and DOR. ...
Effects of mechanical stretch on cardiac membrane excitation; On the significance of anhibitions of slow action potential by the stretchPhysical Function DiagramModelingDirect Current MotorElectromechanical SystemNonlinear PropertyPubMed comprises more than 22 million citations for biomedical literature from ...
7E). The spike amplitude, indicative of action potential height, demonstrated a decline in both COs and HOs within the IR-fibrosis group, but HOs displayed a particularly significant difference compared to COs (Fig. 7E). Measurement of the field potential duration corrected by Fridericia’s ...
Diagram of standard electrocardiographic intervals and the heart. The electrocardiographic features are illustratively aligned with the corresponding cardiac conduction system structures (orange) reflected on the tracing. The PR interval (labeled) indicates conduction through the atria, atrioventricular node, H...
The block diagram control circuit 11 has functionally defined control circuit elements which can be embodied into an integrated circuit along with associated microprocessing means and appropriate software. The control circuit comprises generally a measurement section 12, a logic section 13 and a stimulati...
Figure 1: Schematic action potential showing the response of the transmembrane voltage to periodic electrical stimuli. Under a periodic train of electrical stimuli, the steady-state response consists of phase- locked action potentials, where each stimulus gives rise to an identical action potential (1...
applied electrical stimulus induces an action potential, which is the characteristic time course of the transmembrane voltage. In experiments, the dynamical state of the tissue is often described by measuring the action potential duration (APD). The pacing interval, known ...
N01: I don't like the little diagram. I just think it's confusing, sorry. We have them in nursing all the time and I hate them. I just don't feel that that really adds anything. Participants were positive about the relaxation techniques. The nurses thought it was espe- cially good...
This 9-point pictorial scale is labelled with diagram-like manikins with varying emotional facial expressions. Each scene was displayed against a gray background for a total of 10 s, followed by a 500-ms interstimulus interval. During the first 3 s, the scene was shown on its own, and ...
FIG. 1 is a schematic diagram depicting the interconnection between the pacer and the heart; FIG. 2 is a block diagram depicting the relationship between the sense amplifier and the other pacer circuitry; FIG. 3 is a schematic diagram of an illustrative circuit for carrying out the invention;...