Inspiratory Muscle Training in the Intensive Care Unit: A New Perspective

Rodrigo Marques Tonella, Ligia Dos Santos Roceto Ratti, Lilian Elisabete Bernardes Delazari, Carlos Fontes Junior, Paula Lima Da Silva, Aline Ribeiro Da Silva Herran, Daniela Cristina Dos Santos Faez, Ivete Alonso Bredda Saad, Luciana Castilho De Figueiredo, Rui Moreno, Desanka Dragosvac, Antonio Luis Eiras Falcao, Rodrigo Marques Tonella, Ligia Dos Santos Roceto Ratti, Lilian Elisabete Bernardes Delazari, Carlos Fontes Junior, Paula Lima Da Silva, Aline Ribeiro Da Silva Herran, Daniela Cristina Dos Santos Faez, Ivete Alonso Bredda Saad, Luciana Castilho De Figueiredo, Rui Moreno, Desanka Dragosvac, Antonio Luis Eiras Falcao

Abstract

Background: Prolonged use of mechanical ventilation (MV) leads to weakening of the respiratory muscles, especially in patients subjected to sedation, but this effect seems to be preventable or more quickly reversible using respiratory muscle training. The aims of the study were to assess variations in respiratory and hemodinamic parameters with electronic inspiratory muscle training (EIMT) in tracheostomized patients requiring MV and to compare these variations with those in a group of patients subjected to an intermittent nebulization program (INP).

Methods: This was a pilot, prospective, randomized study of tracheostomized patients requiring MV in one intensive care unit (ICU). Twenty-one patients were randomized: 11 into the INP group and 10 into the EIMT group. Two patients were excluded in experimental group because of hemodynamic instability.

Results: In the EIMT group, maximal inspiratory pressure (MIP) after training was significantly higher than that before (P = 0.017), there were no hemodynamic changes, and the total weaning time was shorter than in the INP group (P = 0.0192).

Conclusion: The EIMT device is safe, promotes an increase in MIP, and leads to a shorter ventilator weaning time than that seen in patients treated using INP.

Keywords: Diaphragm; Intensive care; Respiratory insufficiency; Ventilator weaning.

Figures

Figure 1
Figure 1
Study flowchart and the number of patients studied.

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Source: PubMed

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