1. Pei-Lun, Hung

2. Case 1

3. 35 Y/O man
DM(-), HTN(-), Smoking(-)
Reccurent palpitation for several years
Underwent failed CARTO guided-VT
ablation attempt at a previous centre
On Propafenone 150mg, TID

4. Physical Exam
Obese
Irregular pulses
Intermittently varying S1 intensity

5. Investigations
ECG
Echo -Normal biventricular function
Holter - VT episodes
CAG- Normal

6. ECG

8. Successful ablation

9. Case 2

10. Mr. Yang
53 Y/O famer
No systemic disease, except cardiac
arrhythmias for several years
Aggravation of palpitation for 6 months. He
visited Chang-Bing Show-Chwan Memorial
hospital CV OPD in 99.12.
Admission to VGH-TPE CV ward on 100.1.4
for EPS+/-ABL.

13. LCC
RCC
The earliest
activation site

14. Successful ablation

15. VT origin from subvalvular area
beneath LCC with successful ablation.

16. %

18. Case1 Our case
Case2

19. 1) LBBB and right inferior axis
2) transition between V2-V3
3) rS complex over lead I, QS over aVL
4) R wave III/II ratio of＞0.9

20. Catheter ablation within the sinus of Valsalva—
The ABL is safe and effective.

21. Thanks for your attention!