Radiofrequency Catheter Ablation for Various Tachyarrhy thmias : Experience in the Bangkok Heart Institute

ONGKARN RAUNGRATANAAMPORN, MD*, KIERTIJAI BHURIPANYO, MD*, CHARN SRIRATANASATHAVORN, MD**, CHUNHAKASEM CHOTINAIW ATTARAKUL, MD**,

Affiliation : * Bangkok Heart Institute, Bangkok Hospital, Bangkok 10320, **Her Majesty Cardiac Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.

AbstractRadiofrequency catheter ablation (RFCA) is the first-line therapy for various tachyarrhy thmias. The authors reports experience of RFCA for various types of tachyarrhythmia in 80 consecu tive patients, 85 tracts of ablation, from May 2001 to October 1002. The mean age was 40 years, range 6-81 years. Seventy four and 13 tracts of ablation were supraventricular and ventricular arrhythmia, respectively. The results are shown below.


AVNRT AVRT WPW AFI PAF AT PVC VT SNRT
Total patients 21 13 8 5 10 9 II 2 I
Total pathway 23 13 8 6 10 10 II 2 2
Initial success (%) 100 100 100 100 100 90 100 100 100
Complication(%) I (5) 0 0 0 1(10) 0 0 0 0
Recurrence 0 I (8) 0 I (20) 1(10) 0 1(9) 1(50) 0
Final success (%) 100 100 100 100 90 90 90 100 100
Overall success, complication, and recurrent rates were 94, 2.5 and 5.7%, respectively
AVNRT =atrioventricular nodal reentrant tachycardia, AVRT =atrioventricular reciprocating tachycardia,
WPW =Wolff-Parkinson-White, AFl =atrial flutter, PAF =paroxysmal atrial fibrillation, AT= atrial tachycardia,
PVC= premature ventricular contraction, VT =ventricular tachycardia, SNRT = sinus node reentry tachycardia.
Conclusion : RFCA is an effective method to cure various types tachyarrhythmia. Long-term follow-up should be evaluated in patients with paroxysmal atrial fibrillation.

Keywords : Tachyarrhythmia, Radiofrequency, Ablation

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