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Objective To investigate the High Resolution Manometry results of laparoscopic Nissen fundoplication verse anterior 180° partial fundoplication in the management of hiatal hernia.Methods 110 patients with esophageal motor abnormaliftes who had typical gastroesophageal reflux symptoms were enrolled in trial and allocated into two groups to undergo laparoscopic Nissen fundoplication (Nissen group) and laparoscopic anterior 180° partial fundoplication (partial fundoplication group).