2024年10月8日 · The term supraventricular tachycardia (SVT) refers to any tachydysrhythmia arising from above the level of the Bundle of His, and encompasses regular atrial, irregular atrial, and regular atrioventricular tachycardias

When a child has SVT, the heart suddenly starts to beat very fast, at rates of 180 to 280 beats a minute and up to 300 beats a minute in infants. Supraventricular tachycardia means fast heart rate coming from the above the ventricles, in the heart's upper chambers (supra = above, ventricular = the lower heart chambers, tachy = fast, cardia ...

2018年1月1日 · When the heart rate was high, the risk of failure was greater [median heart rate flutter/other SVT: 280 bpm (235; 300)/230 bpm (210; 280); P = 0.04]. Abortive therapy by adenosine worked for 60% of other types of SVT with or without cardiogenic shock but was ineffective for patients with flutter in our sample.

The efficacy and electrophysiologic effects of adenosine and verapamil in termination of paroxysmal supraventricular tachycardia (SVT) were compared in 18 patients (age 18-48 years, mean 33 +/- 9 years) with recurrent sustained and inducible SVT.

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2025年1月5日 · Ventricular tachycardia: usually above ~120 b/m. A heart rate close to or higher suggests a non-sinus mechanism. Usually, max heart rate would only be reached under marked physiological stress. Max sinus heart rate would also be expected to be accompanied by AV nodal stimulation (causing a relatively low PR interval).

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Supraventricular tachycardia (SVT) happens when the electrical system that controls your heart rhythm is not working properly. This causes your heart to suddenly beat much faster. It can then slow down abruptly. A normal resting heart rate is 60 to 100 beats per minute (bpm). But with SVT your heart rate suddenly goes above 100bpm.