Método simplificado para proteção do esôfago durante a ablação por radiofrequência da fibrilação atrial - estudo prospectivo de 704 casos
| Autor: | Mateos, José Carlos Pachón, Mateos, Enrique I Pachón, Peña, Tomas G Santillana, Lobo, Tasso Julio, Mateos, Juán Carlos Pachón, Vargas, Remy Nelson A, Pachón, Carlos Thiene C, Acosta, Juán Carlos Zerpa |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Brazilian Journal of Cardiovascular Surgery, Vol 30, Iss 2, Pp 139-147 (2015) Brazilian Journal of Cardiovascular Surgery v.30 n.2 2015 Brazilian Journal of Cardiovascular Surgery Sociedade Brasileira de Cirurgia Cardiovascular (SBCCV) instacron:SBCCV Brazilian Journal of Cardiovascular Surgery, Volume: 30, Issue: 2, Pages: 139-147, Published: APR 2015 |
| ISSN: | 1678-9741 |
| Popis: | Introduction:Although rare, the atrioesophageal fistula is one of the most feared complications in radiofrequency catheter ablation of atrial fibrillation due to the high risk of mortality.Objective:This is a prospective controlled study, performed during regular radiofrequency catheter ablation of atrial fibrillation, to test whether esophageal displacement by handling the transesophageal echocardiography transducer could be used for esophageal protection.Methods:Seven hundred and four patients (158 F/546M [22.4%/77.6%]; 52.8±14 [17-84] years old), with mean EF of 0.66±0.8 and drug-refractory atrial fibrillation were submitted to hybrid radiofrequency catheter ablation (conventional pulmonary vein isolation plus AF-Nests and background tachycardia ablation) with displacement of the esophagus as far as possible from the radiofrequency target by transesophageal echocardiography transducer handling. The esophageal luminal temperature was monitored without and with displacement in 25 patients.Results:The mean esophageal displacement was 4 to 9.1cm (5.9±0.8 cm). In 680 of the 704 patients (96.6%), it was enough to allow complete and safe radiofrequency delivery (30W/40ºC/irrigated catheter or 50W/60ºC/8 mm catheter) without esophagus overlapping. The mean esophageal luminal temperature changes with versus without esophageal displacement were 0.11±0.13ºC versus 1.1±0.4ºC respectively, P |
| Databáze: | OpenAIRE |
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