UNLABELLED: Linear lesions have been proposed for treatment of complex atrial arrhythmias including atrial macroreentry tachycardia and compartmentalization in atrial fibrillation. AIM: To judge the effectiveness of a given lesion design, definite endpoints are necessary to ascertain the completeness of the line of block produced. METHODS AND RESULTS: We report validation criteria for long linear lesions in the right atrium in 42 pts, that combine both conventional and 3D mapping information (CARTO). Transferring from the validation of bi-directional block of the cavotricuspid isthmus line for atrial flutter, we validated 2 additional long linear lesions in the right atrium (anterior line and intercaval line). In addition to a complete isthmus line in all 42 pts, in 28 pts a complete anterior line was achieved and validated by both conventional and CARTO criteria. A complete intercaval line was deployed in 11 pts with complete anterior and isthmus lines (with a characteristic shift for the intercaval line) and in 5 pts without a complete anterior line (without characteristic shift). CONCLUSIONS: Conventional catheters placed at strategic locations on opposite sides of the intended ablation line, can depict a sudden characteristic change in the activation sequence. Using a combination of both techniques, deployment and validation of long linear lesion can be facilitated.
UNLABELLED: Linear lesions have been proposed for treatment of complex atrial arrhythmias including atrial macroreentry tachycardia and compartmentalization in atrial fibrillation. AIM: To judge the effectiveness of a given lesion design, definite endpoints are necessary to ascertain the completeness of the line of block produced. METHODS AND RESULTS: We report validation criteria for long linear lesions in the right atrium in 42 pts, that combine both conventional and 3D mapping information (CARTO). Transferring from the validation of bi-directional block of the cavotricuspid isthmus line for atrial flutter, we validated 2 additional long linear lesions in the right atrium (anterior line and intercaval line). In addition to a complete isthmus line in all 42 pts, in 28 pts a complete anterior line was achieved and validated by both conventional and CARTO criteria. A complete intercaval line was deployed in 11 pts with complete anterior and isthmus lines (with a characteristic shift for the intercaval line) and in 5 pts without a complete anterior line (without characteristic shift). CONCLUSIONS: Conventional catheters placed at strategic locations on opposite sides of the intended ablation line, can depict a sudden characteristic change in the activation sequence. Using a combination of both techniques, deployment and validation of long linear lesion can be facilitated.
Authors: H Nakagawa; R Lazzara; T Khastgir; K J Beckman; J H McClelland; S Imai; J V Pitha; A E Becker; M Arruda; M D Gonzalez; L E Widman; M Rome; J Neuhauser; X Wang; J D Calame; M D Goudeau; W M Jackman Journal: Circulation Date: 1996-08-01 Impact factor: 29.690
Authors: H Nakagawa; N Shah; K Matsudaira; E Overholt; K Chandrasekaran; K J Beckman; P Spector; J D Calame; A Rao; C Hasdemir; K Otomo; Z Wang; R Lazzara; W M Jackman Journal: Circulation Date: 2001-02-06 Impact factor: 29.690
Authors: S Ernst; M Schlüter; F Ouyang; A Khanedani; R Cappato; J Hebe; M Volkmer; M Antz; K H Kuck Journal: Circulation Date: 1999-11-16 Impact factor: 29.690
Authors: C Pappone; G Oreto; F Lamberti; G Vicedomini; M L Loricchio; S Shpun; M Rillo; M P Calabrò; A Conversano; S A Ben-Haim; R Cappato; S Chierchia Journal: Circulation Date: 1999-09-14 Impact factor: 29.690