See Also: PORT TOLL, Mer(law)
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his bundle electrography (medicine) and PORT TOLL, Mer (law)


his bundle electrography (medicine)


his bundle electrography
<investigation> This test studies the electrical activity of the bundle of HIS. The bundle of HIS is a group of electrical fibres in the heart that are responsible for transmitting the electrical impulses which generate a normal cardiac contraction. This test may be performed in cases of cardiac arrhythmias, to locate a specific area responsible for a conduction defect and to determine the need for cardiac pacemaker placement. The test involves the passage of a an electrode tipped catheter into the heart. This catheter is usually threaded through a neck, arm or chest vein. Measurements of the HIS bundle can then be performed while standard ECG leads are placed on the arms and legs. This test carries a small risk of bleeding, arrhythmias, embolism, heart attack and stroke. It is performed by a specially trained cardiologist.


PORT TOLL, Mer (law)


PORT TOLL, Mer. law., By this phrase is understood the money paid for the privilege of bringing goods into a port. privilege of bringing goods into a port.