Radiofrequency catheter ablation for various tachyarrhythmias: experience in the Bangkok Heart Institute.

Unlabelled: Radiofrequency catheter ablation (RFCA) is the first-line therapy for various tachyarrhythmias. The authors reports experience of RFCA for various types of tachyarrhythmia in 80 consecutive patients, 85 tracts of ablation, from May 2001 to October 2002. The mean age was 40 years, range 6-81 years.

Lasso catheter guided ablation for paroxysmal atrial fibrillation: the first experience in Thailand.

Unlabelled: The authors used the 10-pole pulmonary vein sized loop-shaped, lasso, catheter via a transatrial septal long sheath in 10 patients who had symptomatic refractory paroxysmal atrial fibrillation (PAF) in order to map and guide for catheter ablation. The radiofrequency current was delivered at the junction between atrial tissue and the pulmonary vein which was the earliest endocardial activation time of the premature atrial contraction (PAC) initiating the PAF and at the pulmonary vein potential during sinus rhythm. Twenty two foci of PAC, 10 and 7, 4 and 1 from left and right superior and left and right inferior pulmonary veins, respectively, and 5 pulmonary vein potentials, 2 and 3 from left and right superior pulmonary veins, respectively, were ablated.

One-year outcome after radiofrequency catheter ablation of symptomatic ventricular arrhythmia from right ventricular outflow tract.

Although ventricular premature complexes (VPCs) in patients without structural heart disease are benign, many patients experience disabling symptoms. Many patients need long-term medication, which is often ineffective and may have adverse effects. Radiofrequency catheter ablation (RFCA) may be an alternative treatment.