Persistent postoperative dysphagia (PPD) is a relatively rare but troublesome complication of laparoscopic fundoplication in patients with gastroesophageal reflux disease. Although it is mainly attributed to impaired distal esophageal body (EB) function, it may develop in patients with preserved motility as well. Since little is known about the pre- and postoperative motility patterns of such patients we aimed to compare the esophageal motor function in patients with PPD and a matched control group of patients without swallowing problems after fundoplication. Patients, Methods: Eleven patients (M/F 3/8, mean age: 52.6 ys., BMI: 24.2) with PPD after laparoscopic fundoplication were evaluated. Standard water perfusion esophageal manometry was performed before and 3 months after fundoplication in all subjects and results were compared to an age, sex, BMI and preoperative dysphagia score matched group of 11 control patients without PPD. Results: Preoperative esophageal manometry showed similar lower esophageal sphincter (LES) length, pressure, relaxation time, and EB peristaltic wave duration in both groups. The amplitude of contractions in the distal EB were also similar, while patients with PPD had significantly lower amplitudes in the proximal esophagus than controls after dry (25.5 vs. 61.8mmHg, p=0.01) and wet (45.1 vs. 76.7mmHg, p=0.05) swallows. Propagation velocity of the contractions were slower in patients with PPD after wet swallows (2.56 vs. 3.27cm/s, p=0.05). The number of simultaneous contractions tended to be higher in PPD. Postoperatively both groups had similarly improved LES function. In the EB, distal contraction amplitudes were decreased in patients with PPD (95.6 vs. 75.5mmHg, p=0.05) but not in controls, compared to the preoperative values. After fundoplication the number of simultaneous contractions were significantly higher in patients with PPD than in controls. Conclusions: In patients with preserved distal EB contraction amplitudes, decreased peristaltic wave propagation velocity, and proximal amplitudes may be predictive for PPD after fundoplication. Patients with PPD have decreased distal EB contraction amplitudes after fundoplication compared to their preoperative results. TÁMOP421/B09/1, ETT340/09
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