To browse Academia. Rationale: Expiratory muscles has recently been stated as the Β«neglected componentΒ» in mechanically ventilated patient. Several authors stated these muscles importance in cough capacity, contractile efficiency of the diaphragm or reduction of hyperinflation. However, few studies reported potential factors leading to expiratory muscle weakness and its importance on weaning success or survival after mechanical ventilation.
This study is a secondary analysis of our previously described cohort of patients ventilated for at least 24 h assessed for respiratory muscles function. Maximal expiratory pressure MEP measurement was carried out during spontaneous breathing trial using. Background: Respiratory muscle strength in patients with an artificial airway is commonly assessed as the maximal inspiratory pressure MIP and is measured using analogue or digital manometers. Recently, new electronic loading devices have been proposed to measure respiratory muscle strength.
This study evaluates the agreement between the MIPs measured by a digital manometer and those according to an electronic loading device in patients being weaned from mechanical ventilation. Methods: In this prospective study, the standard MIP was obtained using a protocol adapted from Marini, in which repetitive inspiratory efforts were performed against an occluded airway with a one-way valve and were recorded with a digital manometer for 40 seconds MIPDM.
The MIP measured using the electronic loading device MIPELD was obtained from repetitively tapered flow resistive inspirations sustained for at least 2 seconds during a second test. The agreement between the results was verified by a Background: Respiratory muscle weakness is one of the primary factors associated with difficulty of ventilatory weaning in critically ill patients. In this sense, inspiratory muscle training IMT is a possible facilitator of successful weaning. The effectiveness of early IMT in this population is not yet well known.
The aim of this study is to assess the effects of early IMT with a mechanical loading device on the weaning time of patients on invasive mechanical ventilation primary outcome , respiratory muscle strength, length of stay in the intensive care unit and in the success rate of weaning secondary outcomes.
