The Effects of Bolus Consistency in Pharyngeal Transit Duration during Normal Swallowing
نویسندگان
چکیده
OBJECTIVE To examine the effects of age, gender and bolus consistency in normal populations using the temporal measurement of Pharyngeal Transit Duration (PTD), which reflects the duration of bolus flow from the ramus of the mandible to the upper esophageal sphincter. METHOD 40 normal and healthy subjects had Videofluoroscopic Swallowing Examinations (VFSEs) of 5 ml thin and nectar thick liquids, and puree consistencies. A slow motion and frame by frame analysis was performed. Three-way analysis of variance (ANOVA) was performed to examine the main effect and interactions, and paired t-tests for the three consistency comparisons. RESULTS Older subjects had a significantly longer PTD than younger subjects (p<0.01). In addition, men had significantly shorter PTDs than women (p<0.01). Puree showed a significantly longer PTD than the other two consistencies, regardless of age and gender (p<0.05). CONCLUSION PTD is an indicative of motor weakness in pharyngeal swallowing secondary to aging. In addition, the results supported the assumption that there is a functional difference in pharyngeal swallowing between men and women. It is expected that the results of this study will be used for further investigation of patients with dysphagia.
منابع مشابه
Effect of Bolus Volume and Consistency on Swallowing Events Duration in Healthy Subjects
BACKGROUND/AIMS Swallowing is a complex function with the control of the swallowing center being located in the brain stem. Our aim in this investigation was to evaluate, in healthy volunteers, the oral and pharyngeal transit of 2 bolus volumes and 2 consistencies, and the influence of these boluses on the proportion of pharyngeal clearance duration/hyoid movement duration. METHODS Videofluor...
متن کاملThe relationship between the oral and pharyngeal phases of swallowing
OBJECTIVE This study was designed to investigate a possible relationship between the duration of the oral and pharyngeal phases of swallowing. INTRODUCTION The oral and pharyngeal phases of swallowing are independent from each other but may be related. METHODS We used videofluoroscopy to evaluate 30 healthy volunteers between 29 and 77 years of age who swallowed 5- and 10-ml liquid and past...
متن کاملOral and pharyngeal bolus transit in patients with chronic obstructive pulmonary disease
BACKGROUND Patients with respiratory diseases, such as chronic obstructive pulmonary disease (COPD), may have swallowing dysfunction. OBJECTIVE The aim of this investigation was to evaluate the oral and pharyngeal phases of swallowing in patients with COPD. METHODS We studied 16 patients with clinical manifestations and pulmonary function tests diagnosis of COPD (mean age: 68 years) and 15 ...
متن کاملCorrespondence between food consistency and suprahyoid muscle activity, tongue pressure, and bolus transit times during the oropharyngeal phase of swallowing.
This study aimed to evaluate the effects of food texture and viscosity on the swallowing function by measuring tongue pressure and performing a videofluorographic (VF) examination. Eleven normal adults were recruited for this study. Test foods with different consistencies and liquid contents, i.e., a half-solid nutrient made of 0.8 and 1.5% agar powder, syrup, and a liquid containing 40 wt/vol%...
متن کاملEffect of a bitter bolus on oral, pharyngeal and esophageal transit of healthy subjects.
CONTEXT During swallowing, boluses stimulate sensory receptors of the oral, pharyngeal, laryngeal, and esophageal regions. Sweet and tasteless foods are more acceptable for swallowing than bitter foods. A bitter bolus is unpleasant for most subjects. Our hypothesis was that the ingestion of a bitter bolus might alter the oral behavior, pharyngeal and esophageal transit when compared to a sweet ...
متن کامل