PMC6778906_01
Electrocardiogram showing the supraventricular tachycardia.
CRIPE2019-4591964.001.jpg
PMC6778906_01_CRIPE2019-4591964.001.jpg
fig1
After verifying SVT with narrow QRS complex without p waves (Figure 1), vagal stimulatory maneuvers were applied but her heart rate did not become normal.