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Original ArticleOpen Access
Radiofrequency Catheter Ablation of Wolff-Parkinson-White Syndrome: Report of 83 Cases from Siriraj Hospital
Krittayaphang R 
,
Bhuripanya K ,
Raungratanaamparn O ,
Sriratanasathavarn C ,
Saangswang J ,
Kangkagate C ,
Paaranawattanakul S ,
Thangtang V ,
Chaithiraphan S
,
Bhuripanya K ,
Raungratanaamparn O ,
Sriratanasathavarn C ,
Saangswang J ,
Kangkagate C ,
Paaranawattanakul S ,
Thangtang V ,
Chaithiraphan S We described the characteristics of patients and accessory pathway and showed our
results of Radiofrequency catheter ablation (RFCA). There were 41 males and 42 females at a
mean age of 36 years. Accessory pathway associated with Wolff-Parkinson-White (WPW)
syndrome in our population was more prevalent on the right side which is different from previous
reports. Most commonly associated heart disease was Ebstein's anomaly. Overall success rate
was 96.4 per cent. Right free wall accessory pathway needed a longer procedure time and fluo-
roscopy time, higher radiofrequency power and more radiofrequency applications compared to
other locations. Although the recurrence rate was 12 per cent, all patients with recurrence were
successfully reablated. We also described the comparison of our result with previous studies.
To our knowledge this is the first report in Thailand with a reasonable number of cases. RFCA is
a very effective treatment of WPW syndrome in the Thai population and should be considered in
symptomatic patients especially those who are refractory to medication.
Key word : Radiofrequency Catheter Ablation, WPW Syndrome
results of Radiofrequency catheter ablation (RFCA). There were 41 males and 42 females at a
mean age of 36 years. Accessory pathway associated with Wolff-Parkinson-White (WPW)
syndrome in our population was more prevalent on the right side which is different from previous
reports. Most commonly associated heart disease was Ebstein's anomaly. Overall success rate
was 96.4 per cent. Right free wall accessory pathway needed a longer procedure time and fluo-
roscopy time, higher radiofrequency power and more radiofrequency applications compared to
other locations. Although the recurrence rate was 12 per cent, all patients with recurrence were
successfully reablated. We also described the comparison of our result with previous studies.
To our knowledge this is the first report in Thailand with a reasonable number of cases. RFCA is
a very effective treatment of WPW syndrome in the Thai population and should be considered in
symptomatic patients especially those who are refractory to medication.
Key word : Radiofrequency Catheter Ablation, WPW Syndrome
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