PMC8019626_01
Initial EKG showing supraventricular tachycardia with heart rate of 181 beats per minute.
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PMC8019626_01_CRIC2021-2806193.001.jpg
fig1
EKG showed supraventricular tachycardia, atrioventricular tachycardia nodal reentrant type, with a heart rate of 181 beats per minute (Figure 1). 6 milligram (mg) of adenosine was administered as rapid IV push but did not terminate the arrhythmia, and the next dose of 12 mg of adenosine rapid IV push was administered which was also unsuccessful (Figure 2).
Patient's rhythm strip showing no improvement in response to adenosine.
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fig2
EKG showed supraventricular tachycardia, atrioventricular tachycardia nodal reentrant type, with a heart rate of 181 beats per minute (Figure 1). 6 milligram (mg) of adenosine was administered as rapid IV push but did not terminate the arrhythmia, and the next dose of 12 mg of adenosine rapid IV push was administered which was also unsuccessful (Figure 2).
Patient's EKG after completion of amiodarone bolus showing resolution of supraventricular tachycardia.
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fig3
Because of the failure of adenosine to terminate arrhythmia and decreasing blood pressure measurements most likely secondary to ongoing SVT, cardioversion for unstable SVT was considered; however, patient regained hemodynamic stability quickly with administration of intravenous bolus of fluids as well as amiodarone 150 mg which was able to terminate the arrhythmia (Figure 3).