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Adenosine

ECG Basics: Paroxysmal Supraventricular Tachycardia Treated With Adenosine

Sun, 12/28/2014 - 17:43 -- Dawn

This series of ECG rhythm strips shows a paroxysmal supraventricular tachycardia successfully treated with adenosine.  The patient was complaining of a rapid heart rate and palpitations, but was hemodynamically stable.  It is not known whether any parasympathetic stimulation, such as a Valsalva maneuver or carotid sinus massage, was used initially.   

ECG Basics: Paroxysmal Supraventricular Tachycardia Converted With Adenosine

Mon, 10/28/2013 - 20:15 -- Dawn

Today, you get THREE strips for your basic classes!  The first shows a PSVT - paroxysmal supraventricular tachycardia at a rate of about 220/minute.  The QRS complexes are narrow, and the rhythm is regular.  In the second strip, we see the moment of conversion after a dose of 6 mg. of adenosine was administered by rapid I.V. infusion.  The re-entry cycle is broken, and the patient experiences many PVCs, including groups of two, three, and even four in a row.  Soon, however, the rhythm settles into sinus rhythm with PACs, and later, just sinus rhythm (not shown).

Wide-Complex Tachycardia Converted by Adenosine

Mon, 08/13/2012 - 13:58 -- Dawn

This ECG was presented earlier this week as an example of SVT with LBBB aberrancy, which was ultimately converted with one dose of adenosine in the Emergency Department.  It is the most shared and commented on ECG yet to appear on the Guru.  The diagnosis given was the one accepted by the medical staff who cared for the patient, who was a man in his 30's who presented to the Emergency Department complaining of a rapid heart rate.  He was ambulatory with stable vital signs, in spite of the tachycardia.

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