Introduction
dysphagia, Dysphagia, pneumonia, weight loss
DYSPHAGIA, DYSPHAGIA, ASPIRATION PNEUMONIA, PNEUMONIA
Dysphagia is difficulty or inability to form or move the alimentary bolus from the mouth to the stomachVideofluoroscopic swallowing study (VFSS) has been considered one of the gold standard assessments for evaluating dysphagia, as it can provide detailed information of the anatomical landmarks of the patient as well as swallowing physiology in real-time, which assists clinicians in determining the safety and efficiency of swallowing, developing a treatment plan, and providing appropriate dietary prescription for patients with dysphagiaBarium sulfate and iohexol are commonly used as contrast agents for VFSSThe purpose of this study was to determine which contrast agent, barium sulfate or iohexol, is superior in visualizing the components of swallowing predictable of subsequent aspiration pneumonia and unintentional weight loss when used in the VFSS. The objectives of this study includes: (1) to compare VFSS findings when barium sulfate and iohexol was used as a contrast agent, (2) to compare whether there was a difference in the VFSS findings of participants with and without subsequent pneumonia by contrast agents used, (3) to compare the VFSS findings of participants with and without unintentional weight loss by contrast agents used, and (4) to compare the VFSS findings of participants who died and who survived by contrast agents used.