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阵发性室上速(PSVT)中最常见者为房室结折返及房室折返性心动过速,阻滞房室结可终止发作。腺苷静注产生一过性房室结传导延迟,有效地终止SVT,它对原发性房性心律失常包括房颤、房扑、异位房速及多源性房速无直接作用,但可减慢心室反应,因此可用于上述心律失常。它还抑制窦房结自律,扩张冠脉,半衰期只10秒。副作用通常很轻,所有反应为一过性,通常不需处理。药物相
Paroxysmal supraventricular tachycardia (PSVT) in the most common are atrioventricular nodal reentry and atrioventricular reentrant tachycardia, atrioventricular block can stop the attack. Adenosine intravenously produces a transient delayed conduction of the AV node and effectively terminates SVT. It has no direct effect on primary atrial arrhythmias including atrial fibrillation, atrial flutter, ectopic atrial tachycardia, and polygenic atrial tachycardia Can slow down the ventricular response, it can be used for the above arrhythmia. It also inhibits sinus node self-regulation, coronary dilatation, half-life of only 10 seconds. Side effects are usually mild, all reactions transient, usually without treatment. Drug phase