high right atrial (HRA) electrogram

high right atrial (HRA) electrogram
an intracardiac electrogram that records electrical potentials within the upper region of the right atrium, obtained by introduction of electrodes high in the atrium near the sinus node; used in localizing conduction blocks and diagnosing arrhythmias. See illustration.

Medical dictionary. 2011.

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  • HRA — health record analyst; health risk appraisal; heart rate audiometry; heart reactive antibody; hereditary renal adysplasia; high right atrium; histamine release activity; Human Resources Administration * * * high right atrial; see under… …   Medical dictionary

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