アブストラクト（57巻1号：神奈川歯学）

神奈川歯学

English

Title　： Relationship between pharyngeal crossing of the nasogastric tube and the side of nasal insertion
Subtitle　： ORIGINAL RESEARCH
Authors　： Yohei TANAKA1), Takatoshi IIDA1,2), Yoshinari MORIMOTO1), Megumi HAYASHI1), Lou MIKUZUKI1), Yuki YAO1)
Authors（kana）　：
Organization　： 1)Department of Geriatric Dentistry, Kanagawa Dental University, 2)Department of Speech-Language-Hearing therapy, School of Rehabilitation Sciences, Health Sciences University of Hokkaido
Journal　： Kanagawa Shigaku
Volume　： 57
Number　： 1
Page　： 17-23
Year/Month　： 2022 / 6
Article　： Original article
Publisher　： Kanagawa Odontological Society
Abstract　： [Abstract] Nasogastric tube (NGT) placement can be harmful during swallowing if the tube passes through the pyriform sinus on the opposite nostril from which it is inserted (i.e., pharyngeal NGT crossing), due to tube and epiglottic contact. We clarified whether the NGT nostril insertion side affected the frequency of pharyngeal NGT crossing. We examined test images and medical records of 118 patients who underwent NGT placement and flexible endoscopic evaluation of swallowing. The frequency of pharyngeal NGT crossing was determined by assessing patients in whom the nasal insertion side differed from the pyriform sinus passage side. We also assessed whether there was contact between the epiglottis and NGT at rest. Patient age is presented as mean +- standard deviation, and each score is presented as the median (quartile). The χ2 test and Fisher's exact test was used. The significance level was set at P < 0.05. Pharyngeal NGT crossing occurred significantly less often (P = 0.009) when the NGT was inserted from the left nostril (14 cases; 12%) compared to the right (28 cases; 24%). Contact between the epiglottis and NGT only occurred in patients with pharyngeal NGT crossing (11 cases; 9.4%). Given that the esophagus is anatomically slightly to the left of the midline, NGTs might be more prone to passing through the left pyriform sinus. Inserting the NGT through the left nostril can reduce the frequency of pharyngeal NGT crossing, potentially preventing the harmful effects. We expect that results obtained in this study will help to determine the ideal NGT position that will have a minimal impact on swallowing function.
Practice　： Dentistry
Keywords　： Nasogastric tube, Pharyngeal nasogastric tube crossing, Swallowing