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Sinus tachycardia: Evaluation and management - UpToDate The etiology, clinical presentation, evaluation, and management of sinus tachycardia, including inappropriate sinus tachycardia, will be reviewed here Other supraventricular tachycardias, including sinoatrial reentry supraventricular tachycardia (which involves tissue from the SA node), are discussed elsewhere
Sinus tachycardia: Evaluation and management - UpToDate The etiology, clinical presentation, evaluation, and management of sinus tachycardia, including inappropriate sinus tachycardia, will be reviewed here Other supraventricular tachycardias, including sinoatrial reentry supraventricular tachycardia (which involves tissue from the SA node), are discussed elsewhere
Wide QRS complex tachycardias: Approach to the diagnosis A narrow QRS complex (<120 milliseconds) reflects rapid activation of the ventricles via the normal His-Purkinje system, which in turn suggests that the arrhythmia originates above or within the atrioventricular (AV) node (ie, a supraventricular tachycardia [SVT])
Basic approach to delayed intraventricular conduction This phenomenon may cause the sudden appearance of sinus tachycardia with a wide QRS during exercise (stress) testing, simulating ventricular tachycardia Bradycardia or deceleration-dependent bundle branch blocks, in which conduction delay occurs when the rate falls below a certain level, are relatively rare
Narrow QRS complex tachycardias: Clinical manifestations . . . - UpToDate An overview of the acute management of tachyarrhythmias, along with detailed discussions of specific narrow complex tachycardias (eg, atrioventricular [AV] nodal reentrant tachycardia [AVNRT], AV reentrant (or reciprocating) tachycardia [AVRT], and atrial tachycardia [AT]) and a broad discussion of wide complex tachycardias, are presented
Sinoatrial nodal reentrant tachycardia (SANRT) - UpToDate Sinoatrial nodal reentrant tachycardia (SANRT), also called sinus node reentry or sinus node reentrant tachycardia, falls into the latter group of reentrant arrhythmias This topic will discuss the mechanisms, clinical manifestations, and treatment of SANRT Discussions of other specific atrial arrhythmias are presented separately
Cardiovascular problems in the post-anesthesia care unit (PACU) INTRODUCTION Hemodynamic aberrations in the post-anesthesia care unit (PACU) include hypotension, hypertension, and or cardiac arrhythmias, and may be caused by or result in cardiovascular complications (eg, myocardial ischemia, decompensated heart failure) Although nausea and vomiting or respiratory problems occur more frequently, cardiovascular events are the third most common problem
Cardiac arrhythmias due to digoxin toxicity - UpToDate Digoxin may also be effective in the treatment of certain types of reentrant paroxysmal supraventricular tachycardia involving the AV node Digoxin toxicity continues to be an important clinical problem which may be life-threatening [2]