Comparison of 8-mm-tip and Irrigated-tip Catheters in the Ablation of Isthmus-Dependent Atrial Flutter: A Prospective Randomized Trial

Characterization of a stepwise approach in cavotricuspid isthmus ablation for typical atrial flutter: A randomized study comparing three catheters

“…There are differences in study results. Several studies conclude that both catheters are equally efficient; others show that the large‐tip is more efficient than irrigated. There are no randomized studies in which the irrigated catheter is more effective than the large tip.…”

“…As a consequence, those catheters are regularly used in most of the electrophysiology laboratories, despite some discrepancies in the literature regarding comparisons among them. However, most studies have been performed allowing crossover between the two types of catheters which could cause bias in the results . For the last years, a novel diffuse‐irrigation system consistent on a porous‐tip has been available for clinical use (ThemoCool SF © ; Biosense Webster Inc., Diamond Bar, CA, USA).…”

Ablação do istmo cavo‐tricúspide com sistema de navegação magnética por controlo remoto no tratamento do flutter auricular típico – resultados a longo prazo

“…O tempo de fluoroscopia mais longo descrito no grupo do cateter de 8 mm pode resultar de uma maior dificuldade em ajustar a ponta do cateter de 8 mm à anatomia do ICT devido às suas maiores dimensões, mas pode também resultar da curva de aprendizagem com o SNM, já que os casos iniciais foram efetuados com o cateter de 8 mm. Com efeito, estudos aleatorizados que compararam estes dois tipos de cateteres demonstraram taxas de sucesso e de complicações similares, com tempos de procedimento e de fluoroscopia semelhantes 12,13 .…”

High-power short-duration radiofrequency ablation of typical atrial flutter

“…With current strategies, average RF delivery time to achieve bidirectional block can range from 10 to 23 minutes, and the risk of tissue vaporization ("steam pop") is reported as high as 2%. [2][3][4][5] Additionally, more than 75% of RF lesions during CTI ablation are perceived as painful by patients. 6,7 High-power short-duration (HPSD) RF delivery has been evaluated in patients undergoing pulmonary vein isolation (PVI) and found to be associated with shorter procedure times and low complication rates.…”