Ventilator Dependency
Conditions
Brief summary
The study is a pre-post test with quasi experimental design. Forty-two intubated-adults who had been mechanically ventilated for more than 21 days were selected on the basis of inclusion criteria in respiratory care ward. These patients were classified equally into study group and control group. The experimental group received the intervention of respiratory muscles training 5 times/ a week for 6 weeks. The control group received normal care. The intervention was adjusted trigger sensitivity to 10% of the first recorded Maximal Inspiratory Pressure at the start of training, then increased the ventilator trigger sensitivity and training duration weekly. The largest of ventilator trigger sensitivity is not over 40% of the initial Maximal Inspiratory Pressure and the timing of training duration is no longer than 30 minutes.
Interventions
The experimental group received the intervention of inspiratory muscles training 5times/week for 6 weeks, 5days/ per cycle; the patients stayed in the semi-recumbent position, recorded the initial/first measurement of MIP. The trigger sensitivity was adjusted to 10% of the first recorded MIP at the start of training, then reducing the ventilator trigger sensitivity and training duration weekly.
Sponsors
Fooyin University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
Inclusion criteria
* Age \>20y/o * Vital signs stable * MIP \<20cmH2O * Ventilator FiO2\<40%, PEEP \<8 * Ventilator mode:PSV or SIMV
Exclusion criteria
* Patient or family refuse
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Maximal inspiratory pressure | 7 weeks | a measure of the strength of inspiratory muscles, measurement by cmH2O. |
| Tidal volume | 7 weeks | the volume of air that is transported into and out of the lungs with each respiratory cycle, measurement by mL per inspiration |
| Minute ventilation volume | 7 weeks | the quantity of air moved into and out of the lungs in a minute, measurement by l.min |
| Rapid shallow breathing index | 7 weeks | the ratio of respiratory frequency to tidal volume (f/VT) |
| Oxygenation index. | 7 weeks | Oxygenation index OI = FiO2 x 100 x M AP/PaO2, where FiO2 is the fraction of inspired oxygen, MAP is the mean airway pressure, and PaO2 is the partial pressure of oxygen in arterial blood, calculated at the end of the first day of standardized preoperative stabilization |
Countries
Taiwan
Outcome results
None listed