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ORIGINAL ARTICLE

의학전문대학원 학생을 대상으로 한 골내 주사 실습의 교육적 효과

Educational effect of intraosseous access for medical students

Korean Journal of Medical Education 2014;26(2):117-124.
Published online: June 1, 2014

경희대학교 의학전문대학원 의학교육학교실

Department of Medical Education, Kyung Hee University School of Medicine, Seoul, Korea

Corresponding Author: Oh Young Kwon (http://orcid.org/0000-0003-0817-2256) Department of Medical Education, Kyung Hee University School of Medicine, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Korea Tel: +82.2.961.9102 Fax: +82.2.969.6958 email: koy0004@hotmail.com
• Received: April 16, 2014   • Revised: May 9, 2014   • Accepted: May 10, 2014

© The Korean Society of Medical Education. All rights reserved.

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Educational effect of intraosseous access for medical students
Korean J Med Educ. 2014;26(2):117-124.   Published online June 1, 2014
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Educational effect of intraosseous access for medical students
Image Image
Fig. 1. Flow Chart of Intraosseous Vascular Access
Fig. 2. Intraosseous Device and Intraosseous Vascular Access Using the Device in an Artificial Tibia
Educational effect of intraosseous access for medical students
Characteristic First trial Second trial Third trial
Final success rate of intraosseous access 44 (88)
Success rate of each trial 33 (66) 9 (18) 2 (4)
Mean procedural time of each trial (sec) 78.1±20.6 60.2±21.3 52.0±7.0
Accumulated success rate of detailed skills
 Proper location of landmark 27 (54) 47 (94) 50 (100)
 Dressing on insertion site 22 (44) 41 (82) 46 (92)
 Combination needle with drill 49 (98) 50 (100) -
 Proper angle during insertion 49 (98) 50 (100) -
 Skillfulness of drill use 37 (74) 50 (100) -
 Remove stylet from catheter 43 (86) 50 (100) -
 Aspiration using syringe 43 (86) 48 (96) 50 (100)
 Connection and infusion of fluid 48 (96) 50 (100) -
Variable Skillful Insufficient Incomplete
Proper location of landmark 27 (54) 19 (38) 3 (6)
Dressing on insertion site 22 (44) - 28 (56)
Combination needle with drill 49 (98) 1 (2) -
Proper angle during insertion 49 (98) 1 (2) -
Skillfulness of drill use 37 (74) 13 (26) -
Remove stylet from catheter 43 (86) 4 (8) 3 (6)
Aspiration using syringe 43 (86) - 7 (14)
Connection and infusion of fluid 48 (96) 2 (4) -
Variable Final result p-value

Success (n=44) Failure (n=6)
Age (yr) 29.20±2.94 28.33±2.33 0.59a)
Sex (male:female) 17:27 2:4 1.000b)
Mean procedural time of first trial (sec) 76.30±19.51 91.33±25.39 0.297a)
Detailed skills (skillful number, %)
 Proper location of landmark 24 (55.8) 3 (50.0) 0.028b)
 Dressing on insertion site 20 (45.5) 2 (33.3) 0.683b)
 Combination needle with drill 43 (97.7) 6 (100.0) 1.000b)
 Proper angle during insertion 43 (97.7) 6 (100.0) 1.000b)
 Skillfulness of drill use 32 (72.7) 5 (83.3) 1.000b)
 Remove stylet from catheter 39 (88.6) 4 (66.6) 0.099b)
 Aspiration using syringe 38 (86.4) 5 (83.3) 1.000b)
 Connection and infusion of fluid 43 (97.7) 5 (83.3) 0.228b)
Item Median Min Max Quartile p-valuea)
Do you know IO access? Pretest 2 1 3 2-3 0.000
Posttest 5 3 5 4-5
Do you know the indications for IO access? Pretest 2 1 3 2 0.000
Posttest 4 3 5 4-5
Can you use the IO device in real patients? Pretest 3 2 5 3-4 0.000
Posttest 5 3 5 4-5
Is IO access suitable for medical education? Pretest 4 2 5 4-5 0.000
Posttest 5 3 5 5
Table 1. General Performance Characteristics of Intraosseous Vascular Access

Data are presented as number (%) or mean±standard deviation.

Table 2. Detailed Skill Assessment of Intraosseous Vascular Access in the First Trial

Data are presented as number (%).

Table 3. Analysis of Factors Associated with Success of Intraosseous Vascular Access

Data are presented as number (%) or mean±standard deviation.

p-value was calculated by Mann-Whitney test,

p-value was calculated by Fisher exact test.

Table 4. Comparative Questionnaire Analysis between Pre- and Post-IO Access

Item: 1 (very poor)~5 (very good).

IO: Intraosseous.

p-value was calculated by paired t-test.