| supraventricular | <anatomy, cardiology> Situated or occurring above the ventricles, especially in an atrium or atrioventricular node. (18 Nov 1997) |
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| supraventricular arrhythmia | <cardiology> A cardiac arrhythmia which has its origin within the sinus node or atrium (above the ventricles). (27 Sep 1997) |
| supraventricular crest | The internal muscular ridge that separates the conus arteriosus from the remaining part of the cavity of the right ventricle of the heart. Synonym: crista supraventricularis. (05 Mar 2000) |
| supraventricular extrasystole | An extrasystole arising from a centre above the ventricle, i.e., arising from the atrium or A-V junction. (05 Mar 2000) |
| supraventricular tachycardia | <cardiology> An abnormally accelerated rhythm that results from a rapidly firing electrical focus above the A-V node. Rates may be in the rage of 150-250 beats/minute. Origin: Gr. Kardia = heart (27 Sep 1997) |
| tachycardia, supraventricular | A generic expression for any tachycardia that originates above the bundle of his. (12 Dec 1998) |
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