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Muscle bridges (MBs) are structures consisting of heart muscle tissue which pass above the coronary arteries and their branches. Although there are a relatively large number of descriptions of these MBs, researchers do not share a common view of the frequency of their occurrence, their location and their morphology, which remain the most controversial questions. The present research was carried out...
Cardiac arrhythmias have troubled patients and fascinated physicians for centuries. The twentieth century was an era of progress, when the mechanism of cardiac disorders became more commonly recognised. Arrhythmias may be due to abnormalities of automaticity, to abnormalities of conduction, or to a combination of both. In order for re-entry to occur, an area of slowing conduction combined with unidirectional...
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