title: Does laparoscopic Nissen fundoplication prevent the progression of Barrett's oesophagus? Is the length of Barrett's a factor?
abstract: BACKGROUND
  Recent studies have suggested that both laparoscopic and open anti-reflux surgery may produce regression of Barrett's mucosa. MATERIAL AND METHODS;: We reviewed 21 patients (13M: 8F, mean age 46.7±3.18 years) with documented Gastroesophageal Reflux Disease (GERD) and Non-dysplastic Barrett's esophagus (15 patients ?3 cm segment, 6 patients < 3 cm segment) on long term proton pump inhibitor therapy who underwent laparoscopic Nissen fundoplication (LNF) between 1993 and 2000. All patients had undergone pre and yearly postoperative upper GI endoscopy with 4 quadrant biopsies every 2 cm. All patients also underwent pre- and 6 months postoperative 24-hr pH study, esophageal manometry, SF36, and GERD symptom score. The mean duration of GERD symptoms was 8.4±1.54 years pre-operative. The mean follow-up after surgery was 39±6.32 months.
  
  
  RESULTS
  Postoperatively, there was significant improvement in reflux symptom score (37.5 ± 3.98 points versus 8.7 ± 2.46 points, P = 0.0001), % acid reflux in 24 hr (26.5 ± 3.91% versus 2.1 ± 0.84%, P< 0.0001) and an increase in lower esophageal sphincter pressure (3.71 ± 1.08 mmHg versus 12.29 ± 1.34 mmHg, P = 0.0053). Complete or partial regression of Barrett's mucosa occurred in 9 patients. All patients with complete regression had <4 cm segment of Barrett's. Progression or cancer transformation was not observed in any of the patients.
  
  
  CONCLUSIONS
  LNF in patients with Barrett's oesophagus results in significant control of GERD symptoms. LNF can prevent progression of Barrett's oesophagus and in patients with Barrett's <4 cm may lead to complete regression.
authors.affiliation: Centre for Minimal Access Surgery, McMaster University, Hamilton, Ontario, Canada.
authors.forename: Fahad
authors.initials: F
authors.lastname: Bamehriz
authors.forename: Sanjeev
authors.initials: S
authors.lastname: Dutta
authors.forename: Catherine Gill
authors.initials: CG
authors.lastname: Pottruff
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Allen
authors.forename: Mehran
authors.initials: M
authors.lastname: Anvari