Atrial Mapping and Radiofrequency Catheter Ablation in Patients With Idiopathic Atrial Fibrillation

Gaïta, Fiorenzo; Riccardi, Riccardo; Calò, Leonardo; Scaglione, Mariano; Garberoglio, Lucia; Antolini, R.; Kirchner, M.; Lamberti, Filippo; Richiardi, Elena

doi:10.1161/01.cir.97.21.2136

Cited by 207 publications

(106 citation statements)

References 24 publications

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“…Our results show that the overall processing time (about 10.5 min) of the USURP-GUI for 30 s segments of the 2048 channels of AEGs is relatively short compared to the total time of catheter ablation procedures for complex persAF (typically 120-180 min) [50]. It is possible for integrated analysis considering multiple features measured from AEGs during persAF, which would provide a multidimensional perspective of the arrhythmia, in which different aspects of the underlying mechanisms for persAF maintenance would be simultaneously investigated, and may further contribute to improve the efficacy of persAF therapy [51].…”

Section: Online Analysis During Ep Proceduresmentioning

confidence: 83%

An interactive platform to guide catheter ablation in human persistent atrial fibrillation using dominant frequency, organization and phase mapping

Salinet

Almeida

et al. 2017

Computer Methods and Programs in Biomedicine

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Section: Online Analysis During Ep Proceduresmentioning

confidence: 83%

An interactive platform to guide catheter ablation in human persistent atrial fibrillation using dominant frequency, organization and phase mapping

Salinet

Almeida

et al. 2017

Computer Methods and Programs in Biomedicine

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“…The favorable results achieved by surgeons led to preliminary laboratory investigation of RF catheter ablation of AF in animals and subsequent application in humans. 7,8,[13][14][15] …”

Section: Rationale For Ablation Techniques In Afmentioning

confidence: 99%

“…7,8 The nature of AF makes a transcatheter approach difficult, because lesions generated with this technique are small and apparently inadequate to modify the substrate of this arrhythmia…”

mentioning

confidence: 99%

Catheter Ablation of Paroxysmal Atrial Fibrillation Using a 3D Mapping System

et al. 1999

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Background-We treated paroxysmal recurrent atrial fibrillation (AF) with radiofrequency (RF) catheter ablation by creating long linear lesions in the atria. To achieve line continuity, a 3D electroanatomic nonfluoroscopic mapping system was used. Methods and Results-In 27 patients with recurrent AF, a catheter incorporating a passive magnetic field sensor was navigated in both atria to construct a 3D activation map. RF energy was delivered to create continuous linear lesions: 3 lines (intercaval, isthmic, and anteroseptal) in the right atrium and a long line encircling the pulmonary veins in the left atrium. After RF application, the atria were remapped to validate completeness of the block lines, demonstrated by late activation of the areas circumscribed by the lines. The mean procedure duration was 312Ϯ103 minutes (range, 187 to 495), with mean fluoroscopy time of 107Ϯ44 minutes (range, 32 to 185 minutes). No acute complications occurred, but 1 patient experienced early prolonged sinus pauses and received a pacemaker. During the first day, 17 patients (63%) had AF episodes, but at discharge, 25 patients were in sinus rhythm. After a follow-up of 6.0 to 15.3 months (average, 10.5Ϯ3.0 months), 16 patients are asymptomatic, 3 have an almost complete disappearance of symptoms, 1 patient is improved, and 7 patients have their AF attacks unchanged. Conclusions-Paroxysmal recurrent drug-refractory AF can be treated by RF catheter ablation. Creation of long continuous linear lesions necessary to compartmentalize the atria is facilitated by a nonfluoroscopic electroanatomic mapping system. (Circulation. 1999;100:1203-1208.)

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“…Catheter ablation of AF: Extensive ablation, especially in the left atrium, will increase the risk of complications such as thromboembolism. Gaita, et al 10) performed catheter ablation only in the right atrium in patients with idiopathic AF. They created two or three linear lesions in the right atrium; 1) a septal line from the superior vena cava to the coronary ostium and from this to the inferior vena cava; 2) a cavotricuspid isthmus line; and 3) a transversal line from the fossa ovalis through the posterior wall to the lateral edge of the tricuspid annulus.…”

Section: Discussionmentioning

confidence: 99%

Effects of Cavotricuspid Isthmus Catheter Ablation on Paroxysmal Atrial Fibrillation

et al. 2001

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SUMMARYIt has been demonstrated that successful cavotricuspid isthmus ablation of typical atrial flutter combined with atrial fibrillation (AF) sometimes influences the preablation history of paroxysmal AF. However, the effectiveness of only isthmus ablation on AF itself is unclear.Endocardial catheter mapping during induced AF was performed around the tricuspid annulus using duodecapolar electrode catheters in 39 patients with drug-refractory paroxysmal AF. Isthmus ablation was performed in 16 patients (41%) in whom catheter mapping during AF showed an organized activation pattern around the tricuspid annulus.During a mean follow-up of 12.3 months, isthmus ablation was successful in preventing AF in 12 (75%) patients, 8 without medication and 4 with a previously ineffective drug. This success group had a significantly higher F wave amplitude in lead V1 (0.29 ± 0.10 vs 0.15 ± 0.04 mV, p < 0.01), a higher left ventricular ejection fraction (74 ± 9 vs 58 ± 2%, p < 0.05), and a smaller left atrial dimension (35 ± 6 vs 43 ± 4mm, p < 0.05) than the failure group.Isthmus ablation may be effective in preventing paroxysmal AF with an organized activation pattern around the tricuspid annulus. F wave amplitude, left ventricular ejection fraction, and left atrial dimension were significant predictors of success. (Jpn Heart J 2001; 42: 79-89)

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Atrial Mapping and Radiofrequency Catheter Ablation in Patients With Idiopathic Atrial Fibrillation

Abstract: Right atrial endocardial catheter ablation of AF is a safe procedure and may be effective in some patients with idiopathic AF. The atrial mapping during AF showed a more disorganized right atrial activation in the septum than in the lateral wall in patients with successful ablation.

Cited by 207 publications

References 24 publications

An interactive platform to guide catheter ablation in human persistent atrial fibrillation using dominant frequency, organization and phase mapping

An interactive platform to guide catheter ablation in human persistent atrial fibrillation using dominant frequency, organization and phase mapping

Catheter Ablation of Paroxysmal Atrial Fibrillation Using a 3D Mapping System

Effects of Cavotricuspid Isthmus Catheter Ablation on Paroxysmal Atrial Fibrillation

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