Cardiac electrophysiology/Related Articles

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Cardiac electrophysiology: The study of the electrical activity and characteristics of the heart; myocardium; and cardiomyocytes, using cardiac electrophysiological techniques [e]

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  • Cardiac electrophysiological techniques [r]: Methods to induce and measure electrical activities at specific sites in the heart to diagnose and treat problems with the heart's electrical system [e]
    • Epicardial mapping [r]: Recording the locations and measurements of electrical activity in the epicardium by placing electrodes on the surface of the heart to analyze the patterns of activation and to locate arrhythmogenic sites [e]
    • Radiofrequency catheter ablation [r]: Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (DC-shock) or alternating current at radiofrequencies (usually 750 kHz). The technique is used most often to ablate the AV junction and/or accessory pathways in order to interrupt AV conduction and produce AV block in the treatment of various tachyarrhythmias. [e]
  • Arrhythmia [r]: Any variation from the normal rhythm or rate of the heart beat. [e]
  • Preexcitation syndrome [r]: A group of conditions in which heart ventricle activation by the atrial impulse is faster than the normal impulse conduction from the sinoatrial node, being conducted over pathways that replace or substitute for the atrioventricular node connection to the Bundle of His [e]
  • Artificial pacemaker [r]: A device that temporarily or indefinitely substitutes for the heart's electrical triggering system [e]

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