Authors: Kohki Nakamura Shigeto Naito Takehito Sasaki Kentaro Minami Yutaka Take Satoru Shimizu Yoshiaki Yamaguchi Toshiaki Yano Michiharu Senga Eiji Yamashita Yoshinao Sugai Koji Kumagai Nobusada Funabashi Shigeru Oshima
Publish Date: 2016/07/14
Volume: 47, Issue: 3, Pages: 321-331
Abstract
Fortynine consecutive patients undergoing second ablation procedures for recurrent AF after CFguided ablation were retrospectively studied The CPVI was performed by pointbypoint ablation with a target CF of 15–20 g The incidence of CPVRs was evaluated along the right and leftsided anterior and posterior CPVI regions AntRPVs PostRPVs AntLPVs and PostLPVsCPVRs were observed in 306 224 204 and 327 of patients along the AntRPVs PostRPVs AntLPVs and PostLPVs respectively P = 0436 In the multivariate logistic analyses completing a left atriumPV conduction block with touchup ablation inside the initially estimated CPVI lines AntRPVs PostRPVs AntLPVs PostLPVs odds ratio OR 5747 15000 207619 7940 P = 0032 0004 0034 0021 and region length PostLPVs OR 3183 P = 0027 were positive predictors of CPVRs while the mean CF AntRPVs OR 0861 P = 0045 and number of radiofrequency applications per unit length AntLPVs PostLPVs OR 0038 0122 P = 0034 0029 were negative predictors At optimal cutoffs of 58 cm for the region length 142 g for the mean CF and 197/cm AntLPVs and 201/cm PostLPVs for the radiofrequency application density the sensitivity and specificity were 938 and 636 600 and 765 900 and 641 and 750 and 636 respectively
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