junctional extrasystole

junc·tion·al ex·tra·sys·to·le

a premature beat arising from the AV junction and leading to a simultaneous or almost simultaneous contraction of atria and ventricles. Synonym(s): atrioventricular extrasystole

extrasystole

(eks?tra-sis'to-le) [? + Gr. systole, contraction] Premature contraction of the heart. It may occur in the presence or absence of organic heart disease. It may be of reflex origin or may be triggered by stimulants (e.g., caffeine, cocaine, or theophylline), hypoxia, psychological stress, electrolyte abnormalities, thyroid disorders, or myocardial infarction.

atrial extrasystole

Premature contraction of the atrium.

junctional extrasystole

Nodal extrasystole.

nodal extrasystole

Extrasystole occurring as a result of an impulse originating in the atrioventricular node. Synonym: junctional extrasystole

ventricular extrasystole

Premature ventricular beat.

单词	junctional extrasystole
释义	DictionarySeeextrasystoleEncyclopediaSeeExtrasystole junctional extrasystole junc·tion·al ex·tra·sys·to·le a premature beat arising from the AV junction and leading to a simultaneous or almost simultaneous contraction of atria and ventricles. Synonym(s): atrioventricular extrasystole extrasystole (eks?tra-sis'to-le) [? + Gr. systole, contraction] Premature contraction of the heart. It may occur in the presence or absence of organic heart disease. It may be of reflex origin or may be triggered by stimulants (e.g., caffeine, cocaine, or theophylline), hypoxia, psychological stress, electrolyte abnormalities, thyroid disorders, or myocardial infarction. atrial extrasystole Premature contraction of the atrium. junctional extrasystole Nodal extrasystole. nodal extrasystole Extrasystole occurring as a result of an impulse originating in the atrioventricular node. Synonym: junctional extrasystole ventricular extrasystole Premature ventricular beat.
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