An Access field property that limits the number of characters that can be typed into a text or number field. Foreign key. A field in one table that is also the primary key of a second table; it is used to create a relationship with that table.
burst pacing. Also found in: Dictionary, Thesaurus, Wikipedia. fast pacing. A term defined in the context of implantable pacemakers for the deliveryâe.g., atrial burst pacingâof rapid, multiple electrical pulses, to pace the heart faster than its intrinsic rate. Fast pacing is used for ventricular tachycardia, to try to break the tachycardia before it progresses to ventricular fibrillation. burst pacing.
Tricuspid insufficiency (TI) , a valvular heart disease also called tricuspid regurgitation (TR), refers to the failure of the heart's tricuspid valve to close properly during systole.As a result, with each heart beat some blood passes from the right ventricle to the right atrium, the opposite of the normal direction.Tricuspid regurgitation occurs in roughly less than 1% of people and is usually asymptomatic, but may also be a feature of pulmonary hypertension and right-sided heart failure.s a result, with each heart beat some blood passes from the right ventricle to the right atrium, the opposite of the normal direction. Tricuspid regurgitation occurs in roughly less than 1% of people and is usually asymptomatic, but may also be a feature of pulmonary hypertension and right-sided heart failure.