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KMID : 1100620150020020089
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Clinical and Experimental Emergency Medicine
2015 Volume.2 No. 2 p.89 ~ p.94
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Evaluation of a novel simulation method of teaching B-lines: hand ultrasound with a wet foam dressing material
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Lee Kyoo-Hyun
Ahn Jung-Hwan
Jung Ru-Bi
Hong Chong-Kun
Shin Tae-Yong
Kim Young-Sik
Ha Young-Rock
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Abstract
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Objective:The aim of this study was to evaluate the effectiveness of teaching A- and B-lines, and lung sliding with a novel simulation methods using hand ultrasound.
Methods:All subjects enrolled were medical school students who were novices in lung ultrasound. All subjects attended a 20-minute lecture about lung ultrasound using simulated video clips of A-lines, B-lines, and lung sliding; and then a 20-minute post-test was administered. The post-test included questions on the presence or absence of A-lines, B-lines, and lung sliding using a random mixture of 20 real video clips and 20 simulated video clips created by using hand ultrasound with or without foam dressing materials. A Wilcoxon signed rank test was used to compare the scores of A-lines, B-lines, and lung sliding between the real images (RG) and simulated models (SG).
Results:There was a statistically significant difference in the median score of the correct answers for A-lines (RG, 18; SG, 17; P=0.037). Correct answers for B-line were significantly different between RG and SG group (RG, 18; SG, 17; P=0.008). There was a statistically significant difference in the median score of the correct answers for lung sliding (RG, 16; SG, 18; P<0.001).
Conclusion:We found this novel B-line teaching model by using a hand ultrasound with a wet foam dressing material is effective for beginners who are less experienced with lung ultrasound and pulmonary interstitial syndrome.
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KEYWORD
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Education, Ultrasonography, Pulmonary edema
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