Radiofrequency ablation (RFA) is effective and long lasting in preventing esophageal adenocarcinoma, new data suggest.
Researchers, led by Paul Wolfson, MBBS, from the Wellcome/EPSRC (Engineering and Physical Sciences Research Council) Centre for Interventional & Surgical Sciences, University College London also found that most treatment relapses happen early and can be re-treated successfully.
Findings were published in a final 10-year report from the United Kingdom National Halo Radiofrequency Ablation Registry and in Gastrointestinal Endoscopy. Because RFA has been used in mainstream clinical practice only since 2005, long-term data of more than 5 years has been lacking.
Multiple studies have shown that RFA is effective in preventing esophageal cancer, but data have been lacking on how long RFA is effective in preventing esophageal adenocarcinoma in patients with dysplastic Barrett's esophagus (BE). A significant number of patients with dysplastic BE do not initially have visible lesions. For instance, the U.S. RFA Patient Registry reported an average 2.7-year follow up of 4,982 patients, but only 1,305 had dysplasia, the authors of the U.K. report note.
"It is well-established that endoscopic treatment of dysplastic BE is initially successful in up to 90% of patients," the authors wrote. "What is less well understood is how long that benefit lasts and if this contributes to a substantial reduction in progression to cancer."
