Study of swallowing sound at the esophagogastric junction before and after fundoplication.

摘要: Swallowing sounds can be heard in the lower esophagus by xiphoid auscultation. We hypothesize that sound analysis could provide information concerning integrity of esophagogastric junction (EGJ), i.e., superposition esophageal sphincter (LES) and diaphragm to assess clinical diagnosis gastroesophageal reflux disease (GERD) results Nissen fundoplication (NF). The aim was evaluate changes parameters using our acoustic technique after reorganization EGJ NF. For 21 patients with GERD hiatus hernia, two microphones were placed below cricoid on cartilages. frequency duration sounds, transit time calculated. defined as composed vibration groups separated periods >100 ms. number groups, vibrations per group, interval between also increased NF, significantly decreased. A significant correlation found LES–diaphragm displacement. reduced for swallowing revealed effects NF upon dynamic profile EGJ. organization at suggested passage bolus modified dissociation LES regularized Concomitant radiologic study should contribute better understanding related structure boli.