Effectiveness of radiofrequency catheter ablation for treatment of atrial tachycardia. Am J Cardiol 1993 Oct 01;72(11):787-93
Date
10/01/1993Pubmed ID
8213510DOI
10.1016/0002-9149(93)91063-nScopus ID
2-s2.0-0027383688 (requires institutional sign-in at Scopus site) 67 CitationsAbstract
Catheter ablation has been used to treat atrioventricular node reentrant and atrioventricular reentrant tachycardias with extremely high success rates. The suitability of catheter ablation for treatment of atrial tachycardia, a much less common type of supraventricular tachycardia, has not been well addressed. Fifteen patients (8 females) ranging from 10 to 83 years (mean 38 +/- 22) were referred for catheter ablation of supraventricular tachycardia. The diagnosis of atrial tachycardia was established by standard electrophysiologic techniques. A combination of activation and pace mapping was used to identify a suitable site for radiofrequency current catheter ablation. Medical therapy was unsuccessful in all but 1 patient. Two patients had surgically corrected congenital heart disease, 2 had coronary artery disease and 1 had dilated cardiomyopathy. Seven patients had depressed left ventricular function. Six patients had incessant tachycardias. Presumed tachycardia mechanism was automatic in 11 patients and reentrant in 4. Mean tachycardia cycle length was 372 +/- 74 ms. Catheter ablation was acutely successful in 12 patients (80%) with application of 11.1 +/- 6.6 lesions at a mean voltage of 60 +/- 9 V. In the other 3 patients, 16 to 38 lesions were applied. At a mean follow-up of 18.5 +/- 6.5 months, 2 patients have had recurrences with different P-wave morphologies and underwent a second successful catheter ablation procedure. An additional 2 patients had recurrences with the same P-wave morphology and 1 underwent a second successful catheter ablation procedure. Thus, radiofrequency ablation can be used in a diverse population of patients with atrial tachycardia with an acute success rate of 80% and a long-term success rate of 73%.
Author List
Goldberger J, Kall J, Ehlert F, Deal B, Olshansky B, Benson DW, Baerman J, Kopp D, Kadish A, Wilber DMESH terms used to index this publication - Major topics in bold
AdultAged
Aged, 80 and over
Catheter Ablation
Child
Electrocardiography
Female
Heart Atria
Humans
Male
Middle Aged
Recurrence
Tachycardia, Supraventricular
Treatment Outcome