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Med Intensiva. 2019 Mar;43(2):79-89. doi: 10.1016/j.medin.2017.11.010. Epub 2018 Feb 3.

Efficacy of respiratory muscle training in weaning of mechanical ventilation in patients with mechanical ventilation for 48hours or more: A Randomized Controlled Clinical Trial.

[Article in English, Spanish]

Author information

1
Fisioterapeuta, especialista en fisioterapia cardiopulmonar, Magister en Epidemiología. Fisioterapeuta de la Unidad de Cuidado Intensivo de la Fundación Valle del Líli. Docente Escuela de Rehabilitación Humana, Facultad de Salud, Universidad del Valle. Miembro del Grupo de Investigación en Ejercicio y Salud Cardiopulmonar (GIESC). Universidad del Valle, Cali, Colombia. Electronic address: linamarce48@gmail.com.
2
Fisioterapeuta, Magister en Epidemiología. Docente Escuela de Rehabilitación Humana, Facultad de Salud, Universidad del Valle. Miembro del Grupo de Investigación en Ejercicio y Salud Cardiopulmonar (GIESC). Universidad del Valle, Cali, Colombia.
3
Fisioterapeuta, especialista en fisioterapia cardiopulmonar. Docente Escuela de Rehabilitación Humana, Facultad de Salud, Universidad del Valle Director del Grupo de Investigación en Ejercicio y Salud Cardiopulmonar (GIESC). Universidad de Valle. Sociedad de Fisioterapeutas Respiratorio Sofire. Unidad de Cuidado Intensivo Clínica Farallones, Cali, Colombia.
4
Médico, cirujano general, intensivista. Profesor Asociado Facultad de Salud Universidad del Valle, Unidad de Cuidado Intensivo Fundación Clínica Valle del Líli, miembro del grupo Epidemiología de las lesiones y el trauma, Cisalva, Universidad del Valle, Cali, Colombia.

Abstract

OBJECTIVE:

To evaluate the efficacy of respiratory muscular training in the weaning of mechanical ventilation and respiratory muscle strength in patients on mechanical ventilation of 48hours or more.

DESIGN:

Randomized controlled trial of parallel groups, double-blind. Ambit: Intensive Care Unit of a IV level clinic in the city of Cali.

PATIENTS:

126 patients in mechanical ventilation for 48hours or more.

INTERVENTIONS:

The experimental group received daily a respiratory muscle training program with treshold, adjusted to 50% of maximal inspiratory pressure, additional to standard care, conventional received standard care of respiratory physiotherapy. MAIN INTEREST VARIABLES: weaning of mechanical ventilation. Other variables evaluated: respiratory muscle strength, requirement of non-invasive mechanical ventilation and frequency of reintubation.

ANALYSIS:

intention-to-treat analysis was performed with all variables evaluated and analysis stratified by sepsis condition.

RESULTS:

There were no statistically significant differences in the median weaning time of the MV between the groups or in the probability of extubation between groups (HR: 0.82 95% CI: 0.55-1.20 P=.29). The maximum inspiratory pressure was increased in the experimental group on average 9.43 (17.48) cmsH20 and in the conventional 5.92 (11.90) cmsH20 (P=.48). The difference between the means of change in maximal inspiratory pressure was 0.46 (P=.83 95%CI -3.85 to -4.78).

CONCLUSIONS:

respiratory muscle training did not demonstrate efficacy in the reduction of the weaning period of mechanical ventilation nor in the increase of respiratory muscle strength in the study population. Registered study at ClinicalTrials.gov (NCT02469064).

KEYWORDS:

Cuidado intensivo; Destete; Entrenamiento; Intensive care; Mechanical ventilation; Músculos respiratorios; Respiratory muscles; Training; Ventilación mecánica; Weaning

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