[Relevance of lower oesophageal sphincter manometry in prae- and postoperative evaluation of gastrooesophageal reflux disease (author's transl)].

In 27 patients with refluxoesophagitis the resting LES-pressure was approximatly 80% lower than in 12 patients with asymptomatic hiatal hernia and 15 controls. All patients in the first group were operated on and 21 fundoplications (Nissen) and 6 anterior plications (Dor) were performed. The postiperativ LES-pressures were 70% higher than praeoperative and almost identical for both methods. The effective restitution of a functional sphincter with these operations could be demonstrated in this way.