Ventilator-derived dynamic respiratory system compliance : Comparison with static compliance in children

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Kaskinen , A K , Kirjavainen , T , Rautiainen , P , Martelius , L , Andersson , S & Pitkänen , O M 2018 , ' Ventilator-derived dynamic respiratory system compliance : Comparison with static compliance in children ' , Respiratory Physiology & Neurobiology , vol. 249 , pp. 32-34 . https://doi.org/10.1016/j.resp.2017.12.007

Title: Ventilator-derived dynamic respiratory system compliance : Comparison with static compliance in children
Author: Kaskinen, Anu K.; Kirjavainen, Turkka; Rautiainen, Paula; Martelius, Laura; Andersson, Sture; Pitkänen, Olli M.
Contributor: University of Helsinki, Clinicum
University of Helsinki, Clinicum
University of Helsinki, Department of Diagnostics and Therapeutics
University of Helsinki, HUS Medical Imaging Center
University of Helsinki, HUS Children and Adolescents
University of Helsinki, Clinicum
Date: 2018-02
Language: eng
Number of pages: 3
Belongs to series: Respiratory Physiology & Neurobiology
ISSN: 1569-9048
URI: http://hdl.handle.net/10138/300881
Abstract: Measurement of dynamic lung compliance during breathing requires measurement of esophageal pressure, whereas static respiratory system compliance (Crs) method requires several airway occlusions. Despite their precision these compliance methods are cumbersome and not suitable for evaluation of pulmonary system in intensive care. The current ventilators display dynamic Crs, which, however, is seldom utilized in clinical practice. We studied the feasibility of ventilator-derived dynamic Crs measurement in pulmonary evaluation after congenital cardiac surgery in children. In 50 children static Crs was measured by double-occlusion technique, and compared with simultaneous ventilator-derived dynamic Crs values. The early postoperative dynamic and static Crs showed a correlation (r = 0.57, p <0.0001), but static Crs was 48% higher than dynamic (p <0.0001). Dynamic Crs measurement showed no correlation with radiographic lung edema findings, whereas the static Crs showed a negative correlation with radiographic lung edema scoring (r = -0.50, p = 0.0002). Thus ventilator-derived dynamic Crs seems less reliable in postoperative pulmonary evaluation than static Crs.
Subject: Compliance
Congenital heart disease
Lung physiology
Mechanical ventilation
Pulmonary edema
MECHANICS
INFANTS
3126 Surgery, anesthesiology, intensive care, radiology
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