THE EFFECTS OF AIRWAY RESISTANCE COMPENSATION ON OxYGEN CONSUMPTION IN PATIENTS OF THE INTENSIVE CARE WARD
https://doi.org/10.17238/issn2223-2427.2019.1.33-37
Abstract
In the mechanically ventilated patient, the single greatest cause of imposed work of breathing (WOB) is the resistance caused by the endotracheal tube (ETT). However, a special mode of ventilatory support called automatic tube compensation (ATC) delivers exactly the amount of pressure necessary to overcome the resistive load imposed by the ETT for the flow measured at the time (so-called variable pressure support). Materials and methods: 21 patients were included in our study who were on mechanical ventilation CPAP/PSV with tracheostomy tube of 8.0 mm. Pulse, BP, SpO2, Ppeak, PS, PEEP, FiO , VO2, VCO2 , EE, RQ, RSBI were monitored. 100% ARC compensation was given. Duration of observation was 60 minutes for each patient. Observation study was 2 stopped if patients’ condition deteriorated. Results: it was observed that mean BR before ARC was 20.3 ± 4.6 & mean BR after ARC was 20.8 ± 5.4, mean VO2 before ARC was 238 ± 72.5 & mean VO2 after ARC was 235.6 ± 70.7, in addition to that we observed that there was a rise in Ppeak of about 3 mm water column. Conclusion: ATC mode did not reduce the work of breathing as all the other measured parameters such as pulse, BR, RSBI, VO2, VCO2 didn’t have a significant change.
About the Authors
M. V. Petrova
RUDN University; FSBI «Federal Scientific Clinical Center of anaesthesiology and Resuscitation»
Russian Federation
Russian Federation
Doctor of Medical Sciences, Head Departments of Anaesthesiology and Resuscitation with a course of medical rehabilitation
117198, Moscow, st. Miklouho-Maclay, 6
I. V. Sergeev
RUDN University; FSBI «Federal Scientific Clinical Center of anaesthesiology and Resuscitation»
Russian Federation
Russian Federation
Resident, Department of Anaesthesiology and Resuscitation, Medical Institute
117198, Moscow, st. Miklouho-Maclay, 6
M. Rubanes
RUDN University
Russian Federation
Russian Federation
Assistant lecturer, Department of Anaesthesiology and Resuscitation, Medical Institute
117198, Moscow Miklukho-Maklaya str.6
V. O. Garoyan
RUDN University
Russian Federation
Russian Federation
Resident, Department of Anaesthesiology and Resuscitation, Medical Institute
117198, Moscow Miklukho-Maklaya str.6
N. N. Habibullon
RUDN University
Russian Federation
Russian Federation
Resident, Department of Anaesthesiology and Resuscitation, Medical Institute
117198, Moscow Miklukho-Maklaya str.6
V. S. Smolyanina
RUDN University
Russian Federation
Russian Federation
Resident, Department of Anaesthesiology and Resuscitation, Medical Institute
117198, Moscow Miklukho-Maklaya str.6
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For citations:
Petrova M.V., Sergeev I.V., Rubanes M., Garoyan V.O., Habibullon N.N., Smolyanina V.S. THE EFFECTS OF AIRWAY RESISTANCE COMPENSATION ON OxYGEN CONSUMPTION IN PATIENTS OF THE INTENSIVE CARE WARD. Surgical practice (Russia). 2019;(1):33-37. (In Russ.) https://doi.org/10.17238/issn2223-2427.2019.1.33-37
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