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Atrioventricular nodal re-entrant tachycardia (AVNRT)
A type of supraventricular tachycardias (SVT). Accounts for about 60% of all fast heart rates that start in the upper part of the heart. AVNRT occurs when the A-V node has an extra electrical pathway in the heart linking the right atrium to the A-V node, a kind of "short circuit." The paths are different and unique; one is fast and the other slow. Symptoms include attacks of palpitations, dizziness, and syncope; heart rates can achieve 150-230 beats per minute. These attacks start and stop suddenly. .
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- Part of Speech: noun
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- Industry/Domain: Medical devices
- Category: Cardiac supplies
- Company: Boston Scientific
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