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Single Chamber Atrial Fibrillation Involving Only the Left Atrium:: Implications for Maintenance and Radiofrequency Ablation Therapy by MARTIN R. KARCH; GJIN NDREPEPA; MICHAEL A.E. SCHNEIDER; STEFAN WEBER; JÜRGEN SCHREIECK; CLAUS SCHMITT is a Medicine article available to read on EtoBox.
What is Single Chamber Atrial Fibrillation Involving Only the Left Atrium:: Implications for Maintenance and Radiofrequency Ablation Therapy about?
**KARCH, M.R., et al.: Single Chamber Atrial Fibrillation Involving Only the Left Atrium: Implications for Maintenance and Radiofrequency Ablation Therapy.** __Due to the anatomic and the functional interatrial relationship, AF is a biatrial process. Whether one of the atria could sustain AF is not known. This study included 11 patients (mean age__ ^__± 1__^ __years, 7 men) with AF who showed a distinct activation pattern, characterized by regular activity in the right atrium (RA) and irregular fibrillatory activity confined to the left atrium (LA) throughout the AF episodes. Each of the atria was mapped with 64‐electrode basket catheters. AF was monitored for__ __74 ± 26 minutes__ __. Complex and irregular activity with a cycle length of__ __138 ± 43 ms__ __was observed in the LA throughout the monitoring time. The posterior and the roof of the LA showed the highest degree of disorganization. RA was activated by regular wavefronts with a cycle length of__ __194 ± 22 ms__ __(__ __P < 0.001__ __, compared with LA). No fibrillatory activity was observed in the RA. All wavefronts that activated the RA were of septal origin: high anteroseptal 52%, low posteroseptal 22%, mid‐septal 18,
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- Author
- MARTIN R. KARCH; GJIN NDREPEPA; MICHAEL A.E. SCHNEIDER; STEFAN WEBER; JÜRGEN SCHREIECK; CLAUS SCHMITT
- Publisher
- John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 0147-8389)
- Published
- 2003
- Language
- EN
- Field
- Medicine (Health Sciences)