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KMID : 0385920060170050471
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Journal of the Korean Society of Emergency Medicine
2006 Volume.17 No. 5 p.471 ~ p.478
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Normal Thickness Ranges for the Adult Korean Epiglottis Using Ultrasonography
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Paik Jin-Hui
Hong Dae-Young
Kim Ji-Hye
Lee Kyung-Mi
Kim Jun-Sig
Han Seung-Baik
Lee Hoon-Jae
Lee Kyung-Hee
Go Yeong-Gil
Khi Woong
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Abstract
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Purpose: The purpose of this study was to assess the reliability of ultrasonography to image the epiglottis and to determine a thickness range based on healthy Korean adults.
Methods: Anterior neck images were obtained in 100 healthy Koreans (52 males and 48 females) using ultrasonography. Sonographically, the epiglottis appeared as a curvilinear, hypoechoic structure with an echogenic preepiglottic space. 20 of 100 subjects, each patient underwent two ultrasound measurements by the same examiner to assess for intra-examiner reliability, followed by two additional measurements performed by a second examiner to assess for inter-examiner reliability.
Results: Intraclass correlation coefficient revealed excellent reliability (intra-examiner 0.901, inter-examiner 0.887). The average Korean epiglottis thickness was measured to be 2.31±0.22 mm (range: 1.88 mm to 2.84 mm), with greater thickness noted in men (2.41±0.21 mm) when compared to women (2.21±0.18 mm) (p <0.001). There was significant correlation between epiglottis thickness and body surface area (r=0.533), weight (0.517), height (0.437) and body mass index (0.372). Average examination time was recoded to be 17.84±13.09 seconds.
Conclusion: Bedside ultrasonography is rapid, safe, easy to perform and can accurately evaluate the epiglottis as seen in our study. Because of excellent reliability, it is possible to establish diagnostic criteria.
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KEYWORD
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Epiglottis, Ultrasonography, Reliability
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