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KMID : 0390320180280020017
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Chungbuk Medical Journal
2018 Volume.28 No. 2 p.17 ~ p.27
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Pediatric Videofluoroscopic Swallowing Study: A Descriptive Literature Review
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Lee Kyoung-Moo
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Abstract
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Purpose: In children, swallowing physiology is different from adults and also it is difficult to cooperate during videofluoroscopic swallowing study. In addition, test cannot be performed for a sufficient time because of the concerns of radiation exposure. Procedures and evaluation methods of swallowing test in children vary from study to study and not yet standardized as well. So it is essential to standardize test protocols and analysis methods to improve validity and reliability of videofluoroscopic swallowing study in children.
Materials and Methods: Primary literature search was conducted using MeSH terms and general medical key words related to pediatric videofluoroscopic swallowing study. Based on these research articles, secondary literature survey was conducted and reviewed after excluding duplicate and unrelated articles.
Results: Most of the children referred for dysphagia or unexplained respiratory symptoms showed aspiration or penetration in the test and most of those were silent aspiration. So when dysphagia is suspected or if children have unexplained respiratory signs such as coughing during meals, a valid swallowing test like videofluoroscopic swallowing study is necessary to confirm aspiration. In normal children, pulling of the bolus in the vallecula before swallowing seems to be normal. Unlike adults, pooling after swallowing is not frequently related to aspiration, but pooling in the pyriform sinus before swallowing is associated with aspiration and is often preceded to aspiration. Nasogastric or orogastric tube did not interfere swallowing, but tracheostomy tube seems to affect respiratory physiology.
Conclusions: We reviewed signs of childhood aspiration, videofluoroscopic swallowing study procedures, analysis methods, test findings in normal children and interpretation of videofluoroscopic swallowing study. Test procedures and analysis methods were not standardized and related terms were not clearly defined yet, so it is necessary to standardize the videofluoroscopic swallowing study in children.
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KEYWORD
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Dysphagia, Videofluoroscopic, Swallowing Study, Children
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