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When used to treat SVT, adenosine is administered intravenously as a rapid bolus (typically 0.10–0.15 mg/kg initially) over 1-2 seconds, followed by a rapid saline flush (often using a 2-way or 3-way stopcock). If the initial dose is ineffective, it may be repeated every 2 minutes with a slightly increased dose (0.05–0.1 mg/kg increments ...
If narrow QRS/ SVT, perform vagal maneuvers and give adenosine. If wide QRS/ VT with regular rhythm and monomorphic QRS, the provider can give adenosine and should consult pediatric cardiology for recommendations. adenosine: first dose 0.1 mg/kg with max 6 mg, second dose 0.2 mg/kg with max 12 mg [2]
Antiarrhythmic agents, also known as cardiac dysrhythmia medications, are a class of drugs that are used to suppress abnormally fast rhythms (tachycardias), such as atrial fibrillation, supraventricular tachycardia and ventricular tachycardia. Many attempts have been made to classify antiarrhythmic agents.
If adenosine is not effective a calcium channel blocker or beta blocker may be used. [4] Otherwise synchronized cardioversion is the treatment. [4] Future episodes can be prevented by catheter ablation. [3] About 2.3 per 1000 people have paroxysmal supraventricular tachycardia. [5] Problems typically begin in those 12 to 45 years old.
Supraventricular tachycardia (SVT) is an umbrella term for fast heart rhythms arising from the upper part of the heart. [2] This is in contrast to the other group of fast heart rhythms – ventricular tachycardia , which start within the lower chambers of the heart . [ 2 ]
AV-nodal reentrant tachycardia; Other names: Atrioventricular-nodal reentrant tachycardia: An example of an ECG tracing typical of uncommon AV nodal reentrant tachycardia. Highlighted in yellow is the P wave that falls after the QRS complex. Specialty: Cardiology: Symptoms: Palpitations, chest tightness, neck pulsation: Diagnostic method
(Defibrillation uses a therapeutic dose of electric current to the heart at a random moment in the cardiac cycle, and is the most effective resuscitation measure for cardiac arrest associated with ventricular fibrillation and pulseless ventricular tachycardia. [1])
The most common type of irregular heartbeat that occurs is known as paroxysmal supraventricular tachycardia. [1] The cause of WPW is typically unknown and is likely due to a combination of chance and genetic factors. [2] A small number of cases are due to a mutation of the PRKAG2 gene which may be inherited in an autosomal dominant fashion. [2]