J Korean Soc Emerg Med.  2013 Dec;24(6):650-655.

Center of the Chest Versus Inter-nipple Line in the Selection of a Chest Compression Site by Novice Rescuers

Affiliations
  • 1Department of Emergency Medicine, Kangdong Sacred Heart Hospital, Hallym University School of Medicine, Seoul, Republic of Korea. emdrcho@empas.com
  • 2Department of Emergency Medicine, School of Medicine, Gangwon National University Hospital, Gangwon National University, Chuncheon, Korea.

Abstract

PURPOSE
The aim of this study was to compare the distribution and risk from hand positions applied at the center of the chest (CoC) versus the inter-nipple line (INL) during external chest compression by novice rescuers.
METHODS
This simulation study included 105 participants. The participants were given photographs of the unexposed male chest and asked to mark a cross at the center of the chest and at the midpoint of the inter-nipple line. The range of contact with the chest was estimated by measuring the participants' palm width. The median and distribution of the two points were then compared and analyzed to determine whether the range in contact with the chest involved the xiphoid process.
RESULTS
The level of the INL was approximately 0.8 cm higher at the sternum than the CoC (p<0.001), while the standard deviation of the CoC [1.8(0.6-3.8)] was higher than that of the INL [1.2(0.4-2.4)] (p<0.001). There were more cases in which the palm range involved the xiphoid process in the CoC group [15(14.3%)] than the INL group [1(0.9%)] (p<0.001).
CONCLUSION
For male adult patients, chest compression at the level of the INL by novice rescuers is safer and more intensive than compression at the level of the CoC.

Keyword

Cardiopulmonary Resuscitation; Heart Massage; Xiphoid bone; Nipples

MeSH Terms

Adult
Cardiopulmonary Resuscitation
Hand
Heart Massage
Humans
Male
Nipples
Sternum
Thorax*
Xiphoid Bone
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