Purpose: The failure rate of laparoscopic anti-reflux surgery is approximately 10-20%. The aim of our prospective study was to investigate whether a modified Nissen fundoplication (MNF) can improve reflux symptoms and prevent surgical treatment failure in the midterm.
Methods: The MNF consisted of (1) suturing the esophagus to the diaphragmatic crura on each side using four non-absorbable stitches, (2) reinforcing clearly weak crura with a tailored Ultrapro mesh, and (3) fixing the upper stitch of the valve to the diaphragm. Forty-eight consecutive patients experiencing typical gastroesophageal reflux disease (GERD) symptoms at least three times per week for 6 months or longer were assessed before and after surgery using validated symptom and quality of life (GERD-HRQL) questionnaires, high-resolution manometry, 24-h impedance-pH monitoring, endoscopy, and barium swallow.
Results: Mortality and perioperative complications were nil. At median follow-up of 46.7 months, the patients experienced significant improvements in symptom and GERD-HRQL scores. One patient presented with severe dyspepsia and another complained of dysphagia requiring a repeat surgery 12 months after the first operation. Esophageal acid exposure (8.8 vs 0.1; p < 0.0001), reflux number (62 vs 8.5; p < 0.0001), and symptom-reflux association (19 vs 0; p < 0.0001) significantly decreased postoperatively. The median esophagogastric junction contractile integral (EGJ-CI) from 31 cases (8.2 vs 21.2 mmHg cm; p = 0.0003) and the abdominal length of the lower esophageal sphincter (LES) (0 vs 16 mm; p = 0.01) increased postoperatively.
Conclusions: Our data demonstrate that the MNF is a safe and effective procedure both in the short term and midterm.
Keywords: Anti-reflux surgery; Gastroesophageal reflux disease; Laparoscopic surgery; Nissen fundoplication.