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J Korean Soc Emerg Med > Volume 29(6); 2018 > Article
Journal of The Korean Society of Emergency Medicine 2018;29(6): 641-648.
중심정맥관 삽입 시 발생하는 공기유입량의 예측: 실험연구
정효재1 , 김양원1 , 박창민1 , 박철호1 , 강지훈1 , 윤유상1,2
1인제대학교 의과대학 응급의학교실
2인제대학교 인문의학연구소
Prediction of air inflow during central venous catheter insertion: experimental study
Hyo Jae Jung1 , Yang Weon Kim1 , Chang Min Park1 , Chul Ho Park1 , Ji Hun Kang1 , Yoo Sang Yoon1,2
1Department of Emergency Medicine, Inje University College of Medicine, Busan, Korea
2The Institute for Medical Humanities, Inje University, Busan, Korea
Correspondence  Yoo Sang Yoon ,Tel: 051-890-6120, Fax: 051-890-1465, Email: 101mars@hanmail.net,
Received: June 18, 2018; Revised: October 5, 2018   Accepted: October 6, 2018.  Published online: December 31, 2018.
This study examined the incidence and amount of air inflow during central venous catheter (CVC) insertion.
This study was an experimental study aimed at designing an apparatus to implement blood vessel and blood flow in the human body. A 1.5-m long core tube with a Teflon tube, suction rubber tube, and polyvinyl chloride tube were made. This core tube was assumed to be the blood vessel of the human body. Blood was replaced with a saline solution. The saline solution was placed higher than the core tube and flowed into the inside of the tube by gravity. The CVC was injected 15-cm deep into the core tube. The air was collected through a 3-way valve into the upper tube. The experiments were carried out by differentiating the pressure in the tube, CVC insertion step, and diameter of the end of the catheter. The experiment was repeated 10 times under the same conditions.
The amount of air decreased with increasing pressure applied to the tube. Air was not generated when the syringe needle was injected, and the amount of air increased with increasing size of the distal end catheter.
To minimize the possibility of air embolism, it is necessary to close the distal end catheter at the earliest point as soon as possible.
Key words: Central venous catheters; Embolim; Air; Jugular veins
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