Unusual Polymorphic Ventricular Tachycardia Originating from the Pulmonary Artery
Korean Circulation Journal
; : 119-122, 2013.
Article
in En
| WPRIM
| ID: wpr-139505
Responsible library:
WPRO
ABSTRACT
We report a case about a 27-year-old healthy young male who developed syncope during exercise, which was subsequently identified to be attributable to non-sustained polymorphic ventricular tachycardia (VT). Occurrence of polymorphic VT was neither related to a prolonged QT interval nor a fixed short coupling interval. Standard examinations including echocardiography, coronary angiography, isoproterenol infusion study, and cardiac MRI showed no structural heart disease. On the electrophysiology study, activation mapping revealed that a discrete potential preceded the premature ventricular complex (PVC) triggered polymorphic VT, which was recorded just above the pulmonary valve. After radiofrequency ablation at this area, PVC and polymorphic VT disappeared and did not recur after a 2 month follow up.
Key words
Full text:
1
Index:
WPRIM
Main subject:
Pulmonary Artery
/
Pulmonary Valve
/
Syncope
/
Echocardiography
/
Follow-Up Studies
/
Coronary Angiography
/
Tachycardia, Ventricular
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Catheter Ablation
/
Ventricular Premature Complexes
/
Electrophysiology
Type of study:
Observational_studies
/
Prognostic_studies
Limits:
Humans
/
Male
Language:
En
Journal:
Korean Circulation Journal
Year:
2013
Type:
Article