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J Korean Soc Emerg Med > Volume 25(5); 2014 > Article
Journal of The Korean Society of Emergency Medicine 2014;25(5): 536-541.
Analysis of Placement of the Chest Compression Site with Measuring the Sternal Length of Young Korean Adult
Soodong Seong, Hojung Kim, Hyoju Lee, Seyoung Lee
1Department of Emergency Medicine, College of Medicine, Soonchunhyang University, Gyenggido, Korea. lovelydr@schmc.ac.kr
2Wonkwang Health Science University Medical Non-commissioned officer, Kangwondo, Korea.
The aim of this study was to identify an adequate chest compression site with measurement of the sternal length of young Korean adults.
We measured the distance from the suprasternal notch to the lower end of the sternum by palpation and width of heel above the carpal bone end 1 cm (H1), 2 cm (H2) in young Korean adults. We also measured weight, height, and BMI of participants. We then compared correlation of each collected variant to sternal length and heel length.
A total of 200 young adults (100 men, 100 women) were enrolled. In measurement of the mean sternal length (SL), no difference was observed between men (19.9 cm) and women (19.6 cm) (p<0.05). However, height, weight, and BMI showed positive correlation with SL (R2 value, BMI=6.7, height=9.2, weight=10.4). After participants were divided into four groups based on gender and mean height, we calculated mean H2 and SL/2 of each group. The mean H2 and SL/2 of the group composed of men above mean height was 8.5 cm and 10.2 cm. The same value for the group of men below mean height was 8.5 cm and 9.7 cm. The mean H2 and SL/2 of the group composed of women above mean height was 7.5 cm and 10.1 cm. The same values for the group of women below mean height were 7.3 cm and 9.6 cm. The mean SL/2 was always higher than the mean H2 in different height groups.
Compression just above the lower end of the sternum by heel on the hand is appropriate in men. In contrast, when performing chest compression in women, chest compression at the level of the sternum away from the width of the index finger of the sternal end is recommended.
Key words: Cardiopulmonary resuscitation, Chest compression, Sternum, Length, Heel, BMI
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