Simulating effect of neonate body position on carbon dioxide tension in oxygen tent
https://doi.org/10.21292/2078-5658-2021-18-5-57-61
Abstract
Oxygen therapy is a common method of respiratory support, but its use involves the risk of carbon dioxide recycling and the development of hypercapnia in the patient.
The aim of the study. Assess the carbon dioxide tension in the oxygen tent depending on the patient's body position in the experimental newborn Model.
Materials and Methods. The study was performed on the phantom of the newborn. Influence of 3 patient positions at fresh mixture feed rate 2.5, 5, 7 and 10 l/min is evaluated. Monitoring of the carbon dioxide tension was carried out using Testo 480, measurements were carried out for 60 minutes.
Results of the study. A clear relationship was established between the position of the newborn's body and the tension of carbon dioxide in the oxygen tent. The minimum tension of carbon dioxide is noted in the patient's position ≪on the back≪ at a fresh mixture feed rate of 7.5 l/minute and is 527 ± 64 ppm, and the maximum ‒ in the child's position ≪on the stomach≪ at the same oxygen-air mixture feed rate: 1180 ± 63 ppm.
Conclusion. The position of the newborn baby's body is the main factor affecting the carbon dioxide stress in the oxygen tent.
Supporting agencies: EU funds and ETKC Ltd. project “Competence center of energy and transport” (project no. 1.2.1.1/18/A/001)
About the Authors
Yu. S. Aleksandrovich
St. Petersburg State Pediatric Medical University
Russian Federation
Russian Federation
Yury S. Aleksandrovich Doctor of Medical Sciences, Professor, Head of Anesthesiology, Intensive Care and Emergency Pediatrics Department within Post-Graduate and Additional Professional Development Faculty
2, Litovskaya St., St. Petersburg, 194100
K. V. Pshenisnov
St. Petersburg State Pediatric Medical University
Russian Federation
Russian Federation
Konstantin V. Pshenisnov Candidate of Medical Sciences, Associate Professor of Anesthesiology, Intensive Care and Emergency Pediatrics Department within Post-Graduate and Continuing Professional Development Faculty
2, Litovskaya St., St. Petersburg, 194100
R. Vardanjan
Armgate Ltd.
Latvia
Latvia
Revik Vardanjan Doctor of Medical Sciences, Pediatrician, Board Member and Chief Designer
Liliju iela 20, Marupe
V. Ignatov
Armgate Ltd.
Latvia
Latvia
Vasiliy Ignatov Master of Electrical Engineering Sciences,
Engineer of Laboratory Measuring and Analytical Systems
Liliju iela 20, Marupe
V. Chienas
Vilnius Maternity Hospital
Lithuania
Lithuania
Vladimiras Chienas MD, Ph.D., Consultant Neonatologist
18A, Tyzenhauzų g,Vilnius, Lithuania, 02106
I. V. Аleksandrovich
North-Western State Medical University Named after I. I. Mechnikov
Russian Federation
Russian Federation
Irina V. Aleksandrovich Candidate of Medical Sciences, Associate Professor of Pediatrics and Neonatology Department
41, Kirochnaya St., St. Petersburg, 191015
S. N. Nezabudkin
St. Petersburg State Pediatric Medical University
Russian Federation
Russian Federation
Sevir N. Nezabudkin Doctor of Medical Sciences, Professor of Pediatric Anesthesiology, Intensive and Emergency Care Department Named after V.I. Gordeev
2, Litovskaya St., St. Petersburg, 194100
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Review
For citations:
Aleksandrovich Yu.S., Pshenisnov K.V., Vardanjan R., Ignatov V., Chienas V., Аleksandrovich I.V., Nezabudkin S.N. Simulating effect of neonate body position on carbon dioxide tension in oxygen tent. Messenger of ANESTHESIOLOGY AND RESUSCITATION. 2021;18(5):57-61. (In Russ.) https://doi.org/10.21292/2078-5658-2021-18-5-57-61
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