Tebala G D
Gastrointestinal Surgery Unit, Department of Surgery, Noble's Hospital, Strang - Douglas, Isle of Man.
Eur Rev Med Pharmacol Sci. 2016 Nov;20(21):4553-4556.
Oesophageal adenocarcinoma is strictly related to gastroesophageal reflux and cylindrical metaplasia of the epithelium of the distal esophagus (Barrett's esophagus) due to chronic inflammation. Worldwide incidence of oesophageal adenocarcinoma is rising despite the availability of precise international guidelines for the treatment of gastroesophageal reflux disease and the increasing use of proton-pump inhibitors (PPIs). While PPIs can control GERD symptoms in a significant amount of cases, still a large number of patients progress to Barrett's esophagus and adenocarcinoma. Recent investigations have demonstrated that in one-third of the patients their reflux symptoms are due to non-acid reflux, obviously not affected by PPIs. Robust evidences are available to demonstrate the role of non-acid reflux in the development of Barrett's esophagus and adenocarcinoma. Therefore, PPIs are not effective in preventing the worst complications of GERD. It is mandatory to develop new and more effective guidelines on the treatment of GERD; that would take into account the fact that GERD should be considered a "surgical" disease, as it is due, at least in its late stages, to an anatomical defect of the lower oesophageal sphincter. Medical treatment should be considered in early stage GERD, when reflux is due to transient relaxations of the lower oesophageal sphincter, whereas surgery should be considered in late stages, in the presence of a demonstrated mechanical failure of the sphincter.
食管腺癌与胃食管反流以及由于慢性炎症导致的远端食管上皮柱状化生(巴雷特食管)密切相关。尽管有针对胃食管反流病治疗的精确国际指南,且质子泵抑制剂(PPIs)的使用日益增加,但全球食管腺癌的发病率仍在上升。虽然质子泵抑制剂在大量病例中可控制胃食管反流病症状,但仍有大量患者进展为巴雷特食管和腺癌。最近的研究表明,三分之一患者的反流症状是由非酸性反流引起的,显然不受质子泵抑制剂的影响。有充分证据证明非酸性反流在巴雷特食管和腺癌发生中的作用。因此,质子泵抑制剂在预防胃食管反流病最严重并发症方面无效。必须制定新的、更有效的胃食管反流病治疗指南;该指南应考虑到胃食管反流病应被视为一种“外科”疾病,因为至少在其晚期,它是由于食管下括约肌的解剖缺陷所致。在胃食管反流病早期,当反流是由于食管下括约肌的短暂松弛时,应考虑药物治疗,而在晚期,当括约肌出现明显机械功能障碍时,则应考虑手术治疗。