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Background  Globus pharyngeus is common and has a low cure rate. Its etiology is complex and reported to be associated with laryngopharyngeal reflux (LPR). However, some patients with globus do not exhibit any reflux symptoms or respond to proton pump inhibitors (PPIs) treatments. The purpose of this study was to clarify the related risk factors of these patients with a final objective of improving the curative effect.    Methods  Forty two patients afflicted with globus pharyngeus (G group) and 38 patients without globus pharyngeus (NG group) were included in this study. According to the laryngopharyngeal Reflux Symptom Index and the response to PPIs treatments, the patients were further divided into reflux groups (G-R, NG-R) and non-reflux groups (G-NR, NG-NR). High Resolution Manometry (HRM) was performed to assess esophageal motility. Questionnaires, including categories such as life exposure factors, were conducted.    Results    a)  The average resting and residual pressures of the upper esophageal sphincter (UES) in the G-NR group was higher than in the NG-NR and NG-R groups ( P  < 0.05).  b)  The average resting and residual pressures of the lower esophageal sphincter showed no differences between the G-NR group and the NG-NR group ( P  > 0.05).  c)  The esophageal distal contractile integral score of the G-NR group was not different from the NG-NR group ( P  > 0.05).  d)  Compared to the NG-NR group, the G-NR group showed higher incidence of stress, smoking, drinking, high salt and anxiety ( P  < 0.05).    Conclusions  Globus pharyngeus without LPR may occur due to high UES pressure. Stress, smoking, alcoholic drinking, high salt and anxiety may be its risk factors.    Electronic supplementary material  The online version of this article (10.1186/s12876-017-0666-x) contains supplementary material, which is available to authorized users.

High-resolution manometry in patients with and without globus pharyngeus and/or symptoms of laryngopharyngeal reflux