History of presentation
A 17-year-old male patient was transferred to our hospital due to a
sudden collapse in the other hospital. The patient was found to suffer
from frequent palpitation and light-headedness that eventually led to
his collapse. At the previous hospital, the patient was well-oriented
but still complained of a fast heart rate, which he pointed out had
begun at least three days before. Different supraventricular
tachycardias (Figure 1) were documented then, and aggressive medical
treatment with three doses of adenosine (12 mg) was given to terminate
the tachycardia. However, the supraventricular tachycardia (SVT)
spontaneously re-initiated despite additional maintenance therapy with
intravenous amiodarone.