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Archivos de cardiología de México
versión On-line ISSN 1665-1731versión impresa ISSN 1405-9940
Resumen
FILGUEIRAS-RAMA, David et al. What is behind radiofrequency delivery at the cavo-tricuspid isthmus?. Arch. Cardiol. Méx. [online]. 2014, vol.84, n.1, pp.51-52. ISSN 1665-1731. https://doi.org/10.1016/j.acmx.2013.07.007.
Catheter-based ablation of isthmus-dependent common atrial flutter results in very high success rates and almost no complications. However, bidirectional conduction block through the isthmus may be challenging in a small percentage of patients regarding the use of high power and high temperature settings during radiofrequency delivery. Anatomical and physiological circumstances may be the reason for such difficulties to achieve bidirectional block at the cavo-tricuspid isthmus. However, in the present case we show edema formation after multiple shots of radiofrequency delivery at the cavo-tricuspid isthmus, which complicates the achievement of bidirectional conduction block.
Palabras llave : Ablation; Radiofrequency; Atrial flutter; Intracardiac echocardiography; Edema; Spain.