Pressure measurement characteristics of a micro ‐transducer and balloon catheters

The aim of this study was to provide a comparative analysis of micro ‐transducer and balloon catheter pressure characteristics: (1) in vitro with a reference pressure transducer; and (2) in vivo following cervical magnetic stimulations. In vivo there was a main effect for catheter for esophageal, gastric, and transdiaphragmatic pressure amplitudes and no main effec t for pressure areas, indicating that pressure areas could be used as a point of comparison between catheter systems. Caution is warranted if comparing pressure amplitude results from different catheter systems or if micro‐transducers are used in clinical settings with balloon catheter‐derived n ormative values. AbstractRespiratory pressure responses to cervical magnetic stimulation are important measurements in monitoring the mechanical function of the respiratory muscles. Pressures can be measured using balloon catheters or a catheter containing integrated micro ‐transducers. However, no research has provided a comprehensive analysis of their pressure measurement characteristics. Accordingly, the aim of this study was to provide a comparative analysis of these characteristics in two separate experiments: (1)in vitro with a reference pressure transducer following a controlled pressurization; and (2)in vivo following cervical magnetic stimulations.In vitro the micro ‐transducer catheter recorded pressure amplitudes and areas which were in closer agreement to the reference pressure transducer than the ball...
Source: Physiological Reports - Category: Physiology Authors: Tags: ORIGINAL ARTICLE Source Type: research