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

SVTs are supraventricular tachycardias, that can be either atrial tachydysrhythmias (such as atrial fibrillation) or atrioventricular tachydysrhythmias. This document concerns the latter.

2024年10月8日 · Regular broad complex tachycardias can be ventricular (VT) or supraventricular (SVT with aberrancy) in origin, and differentiation between the two will significantly influence management of your patients. Unfortunately, the electrocardiographic differentiation of VT from SVT with aberrancy is not always possible.

2025年1月5日 · SVT differentials & general approach. SVT basics. Speed limits; Differential diagnosis based on ECG. 1) if irregular; 2) if more P's than QRS's; 3) if undetectable P-waves; 4) if P's before QRS's; 5) if P's after QRS's; Additional observational tests. Lewis lead ECG; Telemetry: initiation, rate trending; Echocardiography for atrial flutter

2023年8月7日 · Supraventricular tachycardia (SVT) is a dysrhythmia originating at or above the atrioventricular (AV) node and is defined by a narrow complex (QRS < 120 milliseconds) at a rate > 100 beats per minute (bpm).

2024年4月22日 · SVT is always more symptomatic than sinus tach. Sinus tachycardia has a rate of 100 to 150 beats per minute and SVT has a rate of 151 to 250 beats per minute. With sinus tach, the P waves and T...

Supraventricular tachycardia (SVT) is common in infancy and childhood. Most SVT in children is due to a re-entrant mechanism and usually occurs in otherwise normally well children. SVT typically has a fixed rate, usually >220 bpm.

2015年9月17日 · The tachydysrhythmias include a large number of diagnoses including atrial (atrial fibrillation/flutter, supraventricular tachycardia (SVT), multifocal atrial tachycardia (MFAT)) and ventricular dysrhythmias (ventricular tachycardia (VT), ventricular fibrillation (VF) and Torsades de Pointes).

2020年2月11日 · Flecainide or propafenone should be considered for prevention of SVT in patients with WPW syndrome and without ischemic or structural heart disease (Class IIa). SVTs have been reported as risk factors for sudden cardiac death in patients with adult congenital heart disease (ACHD).

2023年5月23日 · SVT with aberrancy and VT differ in the way that they engage the His-Purkinje network: VT propagates from ventricular muscle, with initial slow myocyte-to-myocyte conduction time. This causes a delayed/slurred initial QRS component; SVT with aberrancy displays initial sharp QRS deflections that arise from the preserved bundle branch