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[Esophageal manometry prior to and following anti-reflux surgery].

We analysed the esophageal manometry of 36 patients before, and of 25 patients 1 to 14 years (5.8 years) after, fundoplication. The results were compared with the findings in 30 asymptomatic volunteers. Fundoplication raised the mean lower esophageal sphincter pressure from 6.2 mm Hg to 14.5 mm Hg, i.e. normal values (controls 20.2 mm Hg). The shortened lower esophageal sphincter length and its intraabdominal segment were overcorrected (increase from 3.2 to 5.2 cm [controls 4.1 cm] and 1.3 to 2.6 cm [controls 2.1 cm] respectively). The rate of non-specific motility disorders after fundoplication was reduced from 61% to 28% (controls 7%). A clear relationship between the success of fundoplication and either preoperative or postoperative manometric results could not be established.