Inspiratory Muscular Training devices in older people with weaning of mechanical ventilation and with tracheostomy

Abstract

Objective: to investigate the effects of two inspiratory muscle training devices in the elderly with prolonged weaning from invasive mechanical ventilation and with tracheostomy.

Materials and Methods: The study was carried out with 12 elderly people on prolonged weaning from mechanical ventilation and tracheostomy, in the Intensive Care Units of Hospital das Clínicas, Universidade Estadual de Campinas (UNICAMP). Six elderly people underwent the use of the Powerbreathe plus medic® (PPM) device, and six elderly people under the Powerbreathe K5® (PK5). The following respiratory parameters were evaluated before and after the intervention: rapid and shallow breathing index (RSRI) and maximum inspiratory pressure (MIP). Data analysis was conducted using descriptive and inferential statistics (p <0.05).

Results: the results showed a significant difference in MIP (p = 0.014), where the mean of the PPM group was higher than that of the PK5 group. There was an effect of time (F = 7.756) on IRRS, with negative variations after the intervention period in the PK5 group. The effect of the group (F = 8.394) and time (F = 8.141) on MIP was found, suggesting that the groups were different and that they presented positive variation over time. There was an effect of time (F = 43.808) and interaction (F = 12.020) on the training load, indicating greater load increase in the PPM group, with a large effect size (d = 1.261).

Conclusion: It was concluded that PK5 was shown to be more effective in improving IRRS, MIP and respiratory rate.