Now bear with me while I walk — so slowly, so proudly — across the stage, looking so dignified while I collect my breath, change gears and prepare for the next event.
*Adjusted for variables significant at 20% level in univariable analysis: non-cardiac (leg pain, fatigue, dizziness, other) and cardiac (chest pain, shortness of breath, change in ST segment, arrhythmia, abdominal pain).
All patients underwent duplex venous ultrasonography examination on day 0; at discharge and at clinical suspicion of deep vein thrombosis (DVT) or pulmonary embolism (PE) (complaint of chest discomfort or shortness of breath, change on ECG), a same-day chest X-ray scan and ventilation-perfusion scan was obtained, to confirm PE.
Variable mechanical ventilation patterns are characterized by breath-by-breath changes in VT that mimic spontaneous breathing in normal subjects, and are usually accompanied by reciprocal changes in the respiratory rate.
In addition to average values, the within-breath changes in Zrs, as functions of tidal volume and flow, during tidal breathing and during a slow inspiration to total lung capacity were also determined.
The shape of the resulting spectrum is determined by variations in breath-to-breath changes in TTot.
Because the response time of the probes was relatively short, we correctly estimated the true breath-by-breath changes in temperature that occurred.
Crim et al. found a poor relationship (Pearson's r ≤0.16) between emphysema extent and Rrs and Xrs measured by IOS in a large study but they did not analyze within-breath changes [ 20].
On the basis of the report by Dellacà et al. that ΔX5 is a surrogate marker for EFL, we found that within-breath changes in Xrs (ΔX5 and ΔFres) discriminated between patients with COPD and asthma [ 7].
