ArticleJournal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract2009
Study of swallowing sound at the esophagogastric junction before and after fundoplication.
Article in Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Dysphagia Screening: Contributions of Cervical Auscultation Signals and Modern Signal-Processing Techniques.IEEE transactions on human-machine systems · 2015Article
- Evaluation of the Splash Time Test as a Bedside Test for Hiatal Hernia.Gastroenterology research · 2014Article
- Acoustic study of pharyngeal swallowing as a function of the volume and consistency of the bolus.Dysphagia · 2014Article
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Authors and funding
3 authors.
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No grant is acknowledged in the PubMed record.
Abstract
introductionSwallowing sounds can be heard in the lower esophagus by xiphoid auscultation. We hypothesize that the xiphoid sound analysis could provide information concerning the integrity of the esophagogastric junction (EGJ), i.e., superposition of the lower esophageal sphincter (LES) and the diaphragm to assess clinical diagnosis of gastroesophageal reflux disease (GERD) and results of Nissen fundoplication (NF). The aim was to evaluate the changes in sound parameters using our acoustic technique after reorganization of the EGJ after NF.
methodsFor 21 patients with GERD and hiatus hernia, two microphones were placed below the cricoid and on the xiphoid cartilages. The frequency and duration of xiphoid sounds, esophageal transit time were calculated. We defined the xiphoid sound as composed of vibration groups separated by periods >100 ms. The number of vibration groups, number of vibrations per group, and interval between groups were also calculated.
resultsThe xiphoid sound frequency was increased after NF, and the esophageal transit time and xiphoid sound duration were significantly decreased. A significant correlation was found between xiphoid sound duration and LES-diaphragm displacement. The number of vibration groups and interval between groups were reduced after NF.
conclusionThe acoustic technique for swallowing revealed the effects of NF upon the dynamic profile of the EGJ. The organization of vibration groups at the EGJ suggested that the passage of the bolus was modified by hiatus hernia, i.e., dissociation between the LES and the diaphragm and regularized by NF. Concomitant acoustic and radiologic study should contribute to better understanding of sound related to EGJ structure and boli.
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