How Mechanical Ventilation Measurement Cutoff and Duration Affect Rapid Shallow Breathing Index Accuracy: A Randomized Trial

摘要

BackgroundDecreased accuracy of the rapid shallow breathing index (RSBI) can stem from 1) the method used to obtain this index, 2) duration of mechanical ventilation (MV), and 3) the established cutoff point. The objective was to evaluate the values of RSBI determined by three different methods, using distinct MV times and cutoff points.