Use of the injection test to indicate the oesophageal balloon position in patients without spontaneous breathing: a clinical feasibility study.

ABSTRACT: Objective To investigate the clinical feasibility of the injection test for balloon placement during oesophageal pressure measurement in patients without spontaneous breathing. Methods The injection test was performed in 12 mechanically ventilated patients under deep sedation and paralysis. During withdrawal of the balloon from the stomach and air injection into the gastric lumen of the catheter, the presence of the injection test wave in the balloon pressure tracing indicated that the whole balloon was positioned above the lower oesophageal sphincter (LES). The positive pressure occlusion test was performed at different balloon positions. Results In each patient, the injection test wave appeared at a distinct balloon depth, with a mean ± standard deviation of 41.9 ± 3.3 cm and range from

SUBMITTER: Chen H 

PROVIDER: S-EPMC5536601 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature