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A Micro-dislodgement is a minimal displacement in the lead that is not visible in a chest X-ray, but has the ability to increase the capture threshold and eventually cause a loss of capture. [5] Lead dislodgement can cause sensing failure, which occurs when proper atrial or ventricular sensing is not achieved by the programming of the pacemaker.
Cardiac resynchronisation therapy (CRT or CRT-P) is the insertion of electrodes in the left and right ventricles of the heart, as well as on occasion the right atrium, to treat heart failure by coordinating the function of the left and right ventricles via a pacemaker, a small device inserted into the anterior chest wall.
An artificial cardiac pacemaker (or artificial pacemaker, so as not to be confused with the natural cardiac pacemaker) or just pacemaker is an implanted medical device that generates electrical impulses delivered by electrodes to the chambers of the heart either the upper atria, or lower ventricles to cause the targeted chambers to contract and ...
The pacing electrode is advanced through the vein under fluoroscopic and electrocardiographic guidance. An X-ray after the procedure is always obtained to confirm placement of the pacing electrode. The greater use of atropine and epinephrine or external pacing may make transvenous pacing unnecessary by stabilizing patients early in the process ...
It is important to note that microshock (or micro-shock) are not IEV [2] defined terms and are not used in any international standard. "Micro-shock" is an otherwise imperceptible electric current applied directly, or in very close proximity, to the heart muscle of sufficient strength, frequency, and duration to cause disruption of normal cardiac function.
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Drawing of the ECG, with labels of intervals. Cardiac electrophysiology is a branch of cardiology and basic science focusing on the electrical activities of the heart.The term is usually used in clinical context, to describe studies of such phenomena by invasive (intracardiac) catheter recording of spontaneous activity as well as of cardiac responses to programmed electrical stimulation ...
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