TY - JOUR
T1 - Circumferential balloon-based radiofrequency ablation of Barrett's esophagus with dysplasia can be simplified, yet efficacy maintained, by omitting the cleaning phase
AU - van Vilsteren, Frederike G I
AU - Phoa, K Nadine
AU - Alvarez Herrero, Lorenza
AU - Pouw, Roos E
AU - Sondermeijer, Carine M T
AU - van Lijnschoten, Ineke
AU - Seldenrijk, Kees A
AU - Visser, Mike
AU - Meijer, Sybren L
AU - van Berge Henegouwen, Mark I
AU - Weusten, Bas L A M
AU - Schoon, Erik J
AU - Bergman, Jacques J G H M
N1 - Copyright © 2013 AGA Institute. Published by Elsevier Inc. All rights reserved.
PY - 2013/5
Y1 - 2013/5
N2 - BACKGROUND & AIMS: The current procedure for circumferential balloon-based radiofrequency ablation (c-RFA) for the removal of dysplastic Barrett's esophagus (BE) is labor intensive, comprising 2 ablation passes with a cleaning step to remove debris from the ablation zone and electrode. We compared the safety and efficacy of 3 different c-RFA ablation regimens.METHODS: We performed a prospective trial of consecutive patients with flat-type BE with high-grade dysplasia. Fifty-seven patients (45 men; age, 64 ± 15 y; 28 with prior endoscopic resection) were assigned randomly to groups that underwent c-RFA with a double application of RFA (12 J/cm(2)). The standard group received c-RFA, with device removal and cleaning, followed by c-RFA; the simple-with-cleaning group underwent c-RFA, with device cleaning without removal, followed by c-RFA; and the simple-no-cleaning group received 2 applications of c-RFA, and the device was not removed or cleaned. The primary outcome was surface regression of BE 3 months later, graded by 2 blinded expert endoscopists. Calculated sample size was 57 patients, based on a noninferiority design.RESULTS: Median BE surface regression at 3 months was 83% in the standard group, 78% in the simple-with-cleaning group, and 88% in the simple-no-cleaning group (P = .14). RF ablation time was 20 minutes (interquartile range [IQR], 18-25 min) for the standard group, 13 minutes (IQR, 11-15 min) for the simple-with-cleaning group, and 5 minutes (IQR, 5-9 min) for the simple-no-cleaning group (P < .01). The median number of introductions (RFA devices/endoscope) for the standard group was 7, vs 4 for the simple groups (P < .01).CONCLUSIONS: This randomized, prospective study suggests that c-RFA is easier and faster, but equally safe and effective, when the cleaning phase between ablations is omitted or simplified. Trialregister.nl, NTR 2495.
AB - BACKGROUND & AIMS: The current procedure for circumferential balloon-based radiofrequency ablation (c-RFA) for the removal of dysplastic Barrett's esophagus (BE) is labor intensive, comprising 2 ablation passes with a cleaning step to remove debris from the ablation zone and electrode. We compared the safety and efficacy of 3 different c-RFA ablation regimens.METHODS: We performed a prospective trial of consecutive patients with flat-type BE with high-grade dysplasia. Fifty-seven patients (45 men; age, 64 ± 15 y; 28 with prior endoscopic resection) were assigned randomly to groups that underwent c-RFA with a double application of RFA (12 J/cm(2)). The standard group received c-RFA, with device removal and cleaning, followed by c-RFA; the simple-with-cleaning group underwent c-RFA, with device cleaning without removal, followed by c-RFA; and the simple-no-cleaning group received 2 applications of c-RFA, and the device was not removed or cleaned. The primary outcome was surface regression of BE 3 months later, graded by 2 blinded expert endoscopists. Calculated sample size was 57 patients, based on a noninferiority design.RESULTS: Median BE surface regression at 3 months was 83% in the standard group, 78% in the simple-with-cleaning group, and 88% in the simple-no-cleaning group (P = .14). RF ablation time was 20 minutes (interquartile range [IQR], 18-25 min) for the standard group, 13 minutes (IQR, 11-15 min) for the simple-with-cleaning group, and 5 minutes (IQR, 5-9 min) for the simple-no-cleaning group (P < .01). The median number of introductions (RFA devices/endoscope) for the standard group was 7, vs 4 for the simple groups (P < .01).CONCLUSIONS: This randomized, prospective study suggests that c-RFA is easier and faster, but equally safe and effective, when the cleaning phase between ablations is omitted or simplified. Trialregister.nl, NTR 2495.
KW - Adult
KW - Aged
KW - Aged, 80 and over
KW - Barrett Esophagus/pathology
KW - Catheter Ablation/adverse effects
KW - Female
KW - Humans
KW - Male
KW - Middle Aged
KW - Prospective Studies
KW - Time Factors
KW - Treatment Outcome
U2 - 10.1016/j.cgh.2012.12.005
DO - 10.1016/j.cgh.2012.12.005
M3 - Article
C2 - 23267867
SN - 1542-3565
VL - 11
SP - 491-98.e1
JO - Clinical Gastroenterology and Hepatology
JF - Clinical Gastroenterology and Hepatology
IS - 5
ER -