The cardinal features of asthma include wheeze, shortness of breath, variable and reversible airway obstruction, airway hyperresponsiveness, mucus production and airway inflammation.
Moreover, the use of variable controlled ventilation, i.e., application of breath-by-breath variable VTs or driving pressures, as well as assisted ventilation modes such as Bi-Vent+PSV, may also prove a simple and interesting alternative for lung recruitment in the clinical scenario.
Clinical score and recorded acoustic breath sounds variables were analyzed by non-parametric tests: Mann-Whitney U test was used to compare between the groups, while Wilcoxon signed rank test was used to compare within-group differences over time.
Based on the concept that MV should mimic physiologically noisy breathing patterns, biologically variable or noisy MV was introduced, which attempted to mimic spontaneous breath-to-breath variability during volume-controlled MV [ 2].
Give two mouth-to-mouth rescue breaths Table 2 Variables asked about in the attitude section in the validated questionnaire Attitude Strongly agree Agree Not sure Disagree Strongly disagree You are a 65 year old with underlying hypertension and hyperlipidemia and suddenly have a heart attack leading to cardiac arrest.
It should be noted that the number of days between collecting the pre-transplant and post-transplant breath samples is variable, because it is not possible to control when subjects are available or when a donor liver would be found.
Breath-by-breath metabolic and respiratory variables were collected using dedicated software (BreatheM v2.38, Oxford) and measured by mass spectrometry (AMIS 2000; Innovision, Odense, Denmark).
Gas exchange and ventilatory variables were analysed breath by breath averaged over 10-second intervals using a computer-based system; study details are given elsewhere [ 20].
The covariates were included in multivariable models for adjustment if they modified effect estimates for associations between the exposure variables (CO breath and tube) and the outcome variables (respiratory symptoms and lung function) by at least 5%.
Reduced sensitivity due to the increased distance between receive coil-array and the heart, breathing problems, affecting breath-hold, resulting in variable breath-hold times, and/or ECG detachment due to sweating may place additional constraints on the application of H-MRS in this patient group.
