Background Cavotricuspid isthmus-dependent counterclockwise atrial flutter (typical AFL) is characterized by negative saw-tooth morphology flutter wave (F-wave) in the inferior leads, which is classified as type 1 with purely negative F-wave without positive terminal deflection (PTD), type 2 with ...
Differences in the duration of the excitable gap along the reentry circuit during typical atrial flutter are poorly known. To prospectively evaluate and compare the duration and composition of the excitable gap during typical counterclockwise atrial flutter in different parts of the circuit all around ...
Body surface mapping of counterclockwise and clockwise typical atrial flutter: a comparative analysis with endocardial activa- tion sequence mapping. J Am Coll Cardiol 2000; 35: 1276-87.SippensGroenewegen A, D. Lesh M, X. Roithinger F, S. Ellis W, R. Steiner P, A. Saxon L, J. Lee ...
atrial flutterRADIOFREQUENCY CATHETER ABLATIONCRYOABLATIONCOMPLICATIONSTACHYCARDIAARRHYTHMIASNODEtext>Objectives: To evaluate the efficacy and safety of cryoablation compared with the radiofrequency (RF) method in the treatment of typical atrial flutter (AFL).Methods: 12 patients with typical counterclockwise ...
We postulated that measuring the extra-isthmus activation time (EIAT) on the counterclockwise (CCW) ECG flutter (F) wave is correlated with the extra-isthmus conduction time after proven BIB. Methods Files of 76 consecutive patients (pts; 71卤12 y) ablated for CCW AFl were reviewed. Ten ...
A 63-year-old female patient with a history of pulmonary heart disease underwent radiofrequency ablation because of a persistent atrial flutter. Endocardial mapping with the carto3 system confirmed atrial flutter counterclockwise reentry around the tricuspid annulus. Routine ablation of the cavo-...
P1160 Outcomes in patients with ablation of clockwise vs counterclockwise forms of typical atrial flutterdoi:10.1093/europace/euy015.645A BissonN ClementyC AndreL DespretsB PierreD BabutyL FauchierOxford University PressEP Europace
The transisthmus intervals before ablation and after complete transisthmus block were (73.82±13.01) ms and (140.47±20.48) ms, respectively, in the clockwise direction (P<0.0001), and (77.63±8.36) ms and (138.17±15.55) ms, respectively, in the counterclockwise direction (P<0.0001). A ...
Activation maps during AFL showed a single reentrant wavefront in the right atrium that rotated either clockwise (60%) or counterclockwise (40%) around the crista terminalis and through the isthmus. Ablation of the isthmus prevented the induction of AFL. Nicotine caused a significant (P < 0.01...
We postulated that measuring the extra-isthmus activation time (EIAT) on the counterclockwise (CCW) ECG flutter (F) wave is correlated with the extra-isthmus conduction time after proven BIB. Methods Files of 76 consecutive patients (pts; 71±12 y) ablated for CCW AFl were reviewed. Ten ...