منابع مشابه
What is a monophasic action potential recorded by the Franz contact electrode?
by gest on M ay 3, 2016 D ow nladed fom After over 20 years of successful use of the Franz contact electrode technique by many others and myself (over 1000 publications to date), the recent paper by Kondo et al. [1] claims that it is not the tip electrode, but rather the distant-from-tip or bindifferentQ electrode that records the monophasic action potential (MAP). The introduction starts out b...
متن کاملMonophasic action potential duration during programmed electrical stimulation.
UNLABELLED To examine changes in monophasic action potential duration (APD) with a pacing protocol similar to that used during electrophysiological testing, action potentials were recorded in vivo from the left ventricular apical endocardium of 12 normal mongrel dogs. The atrioventricular node was ablated and the dogs paced from the anterior right ventricle at a baseline cycle length of 1000 ms...
متن کاملMonophasic Action Potential Morphology in the Human Heart
Background. Recent studies examining mechanisms of defibrillation have focused on prolongation of graded cellular response duration during refractory period stimulation. This mechanism assumes that defibrillation shocks interact with ventricular cells during the process of repolarization. Methods and Results. To test this assumption, we examined monophasic action potentials (MAPs) from 171 epis...
متن کاملNew insights into application of cardiac monophasic action potential.
Monophasic action potential (MAP) recording plays an important role in a more direct view of human myocardial electrophysiology under both physiological and pathological conditions. The procedure of MAP measuring can be simply performed using the Seldinger technique, when MAP catheter is inserted through femoral vein into the right ventricle or through femoral artery to the left ventricle. The ...
متن کاملCellular basis for the monophasic action potential. Which electrode is the recording electrode?
BACKGROUND The cellular basis for the monophasic action potential (MAP) has long been a matter of debate. At the center of the controversy is the issue as to which of the two electrodes is the recording electrode and which is the indifferent electrode. The present study is designed to address this issue. METHODS Transmembrane action potentials (TAPs) and either intramural MAPs or contact (Fra...
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ژورنال
عنوان ژورنال: Cardiovascular Research
سال: 2004
ISSN: 0008-6363
DOI: 10.1016/j.cardiores.2004.06.027