Ontology type: schema:ScholarlyArticle
2021-11-18
AUTHORSAlexandre Almorad, Gian Battista Chierchia, Luigi Pannone, Thiago Guimaraes Osorio, Antonio Sorgente, Antonio Bisignani, Gezim Bala, Ingrid Overeinder, Erwin Ströker, Pedro Brugada, Juan Sieira, Carlo de Asmundis
ABSTRACTPurposePulmonary vein isolation (PVI) with radiofrequency (RF) catheter ablation is an effective treatment option for patients with paroxysmal AF. However, traditional point by point RF ablation can be time consuming and technically challenging. To simplify the ablation procedure, without compromising procedure outcome, several “single shot” ablation systems have been developed. The multi-electrode RF Balloon catheter HELIOSTAR is a 28-mm compliant balloon compatible with the CARTO 3D electroanatomical mapping system; an optimized step-by-step workflow to perform PVI is described.MethodsProcedures are performed under general anesthesia with unique transseptal puncture. To evaluate the optimal electrode-tissue contact and best RF Balloon positioning, the following baseline indicators should be fulfilled: inflation index > 0.8, impedance range close to 100 Ohms with a variability of less than 20 Ohms across electrodes, temperature variability on all electrodes < 3 °C with a maximum temperature of 31 °C.ResultsRF delivery along the posterior wall is programmed to 20 s or shorter in case of esophageal temperature rise (> 2 °C compared to baseline) and 60 s for all the other segments. Target parameters for PVI are 1) time to isolation less than 12 s; 2) impedance drop > 12 Ohms; 3) temperature rise > 6 °C.ConclusionsStandardized workflow for RF Balloon is mandatory to achieve efficacy and safety with this new promising technology. In the absence of international guidelines, a single high-volume center procedural strategy is described for PVI. More... »
PAGES1-8
http://scigraph.springernature.com/pub.10.1007/s10840-021-01094-9
DOIhttp://dx.doi.org/10.1007/s10840-021-01094-9
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PUBMEDhttps://www.ncbi.nlm.nih.gov/pubmed/34791605
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