Key result
Iso-volume maneuver linked to reduced thoracoabdominal wall motion entropy difference between rest and recovery.
Why the study?
The relationship between the asynchrony and complexity of thoracoabdominal movement and its clinical implications remains incompletely understood, necessitating methods to analyze short-term physiological time series complexity.
Observational (n=19)
No
May inform respiratory coordination assessment; leaves open validation in clinical cardiopulmonary populations.
Physiological systems generate complex fluctuations in their output signals that reflect the underlying dynamics. The base-scale entropy method was proposed as a complexity measure to investigate the complexity of time series. The advantages of this method are simplicity and extremely fast calculation for very short data sets. This method enables analyzing very short, nonstationary, and noisy data sets. We employed this method for short-term physiological time series for analysis of heart-rate variability signals. The results show that the simple and easily calculated measure can effectively detect the complexity dissimilarity of physiological time series in different physiological or pathological states, which is convenient for clinical applications.
No takes yet. Share an insight, caveat, or question.
Li et al. (2006) reported an observational. Iso-volume maneuver (IVM) trial vs. Before IVM trial (baseline) was evaluated on Difference in area under the curve (dAUC) between the intrinsic entropy of thoracic wall movement and abdominal wall movement. The iso-volume maneuver trial significantly decreased the difference in area under the curve between the intrinsic entropy of thoracic and abdominal wall movement during rest and recovery.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: