![]() ![]() No warranty is given about the accuracy of the copy. However, users may print, download, or email articles for individual use. Copyright of Respiratory Care is the property of American Association for Respiratory Care and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission.In subjects with a low P./F., the method to measure VD/VT must be reported, and results cannot be easily compared if the measurement methods are not the same. > 300) except in the case of status asthmaticus. CONCLUSIONS: This study suggests that VD/VTBohr and VD/VT Enghoff are not different when there is no hypoxemia (P./F. Two children with status asthmaticus had a major difference between VD/VT Bohr and VD/VT Enghoff in the absence of a low P./F. The difference between VD/VT Bohr and VD/VT Enghoff was correlated with P./F. RESULTS: Thirty-four subjects were analyzed. This study was approved by Ste-Justine research ethics review board. ![]() Bohr's and Enghoff's dead space, S2 and S3 slopes, and the S2/S3 ratio were calculated breath-by-breath using dedicated software (FlowTool). Volumetric capnography indices (NM3 monitor) were obtained over a period of 5 min preceding a blood sample. Demographic data, medical history, and ventilatory parameters were recorded. METHODS: From June 2013 to December 2013, mechanically ventilated children with various respiratory conditions were included in this study. ![]() We aimed to describe the relationship between these 2 measurements in mechanically ventilated children and their significance in cases of ARDS. (Enghoff modification) could be appropriate for the calculation of physiological dead space to tidal volume ratio (VD/VT Bohr and VD/VT Enghoff, respectively). (P.) estimated by volumetric capnography in the Bohr equation instead of P.
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