1. Acceleration sensors in abdominal wall position as a non-invasive approach to detect early breathing alterations induced by intolerance of increased airway resistance
- Author
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Thomas Breuer, Christian S. Bruells, Rolf Rossaint, Henning Steffen, Catherine Disselhorst-Klug, Michael Czaplik, and Norbert Zoremba
- Subjects
Acceleration sensors ,Breathing patterns ,Respiratory failure ,Surgery ,RD1-811 ,Anesthesiology ,RD78.3-87.3 - Abstract
Abstract Background Early detection of respiratory overload is crucial to mechanically ventilated patients, especially during phases of spontaneous breathing. Although a diversity of methods and indices has been established, there is no highly specific approach to predict respiratory failure. This study aimed to evaluate acceleration sensors in abdominal and thoracic wall positions to detect alterations in breathing excursions in a setting of gradual increasing airway resistance. Methods Twenty-nine healthy volunteers were committed to a standardized protocol of a two-minutes step-down spontaneous breathing on a 5 mm, 4 mm and then 3 mm orally placed endotracheal tube. Accelerator sensors in thoracic and abdominal wall position monitored breathing excursions. 15 participants passed the breathing protocol (“completed” group), 14 individuals cancelled the protocol due to subjective intolerance to the increasing airway resistance (“abandoned” group). Results Gradual increased respiratory workload led to a significant decrease of acceleration in abdominal wall position in the “abandoned” group compared to the “completed” group (p
- Published
- 2017
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