Introduction: Advances in knowledge have contributed to the increase in the number of patients who survive prolonged hospitalization in an Intensive Care Unit (ICU), and, among them, critically ill patients who develop acute respiratory failure and need for mechanical ventilation. These individuals have their mobility restricted to bed, and may suffer from pulmonary and systemic complications, such as ICU-Acquired Muscle Weakness, which increases the chances of resulting in reduced functional capacity or death. Early mobilization in the ICU has demonstrated benefits, but still with a low level of evidence. However, the type and intensity of exercise still need to be better defined, and previous protocols did not offer continuous monitoring from the ICU to the ward and subsequent outpatient rehabilitation for these patients, which is considered a limitation in some studies. Objective: To investigate the effects of an early and intensive hospital mobilization and post-hospital rehabilitation program on indicators of functionality, inflammation, cost-effectiveness, and mortality in critically ill patients undergoing invasive mechanical ventilation. Methods: This is a Blind Randomized Controlled Clinical Trial that will be conducted in the ICUs of the Hospital das Clinicas and the Emergency Unit of the Faculty of Medicine of Ribeirao Preto of the University of São Paulo. Patients of both sexes over 21 years of age who have been under invasive mechanical ventilation for at least 24 hours will be recruited. Patients will be randomized into the Intervention Group (IG), with 30 to 60 minutes of exercise per day, and the Control Group (CG), with 10 minutes of exercise per day, both with the same protocol and based on the ICU Mobility Scale - IMS, with continuity in the ward. After hospital discharge, participants will be allocated to the Guidance Group (GIor and GCor) and the Outpatient Rehabilitation Group (GIreab and GCreab), with functional exercise capacity as the main outcome, assessed by the six-minute walk test (6MWT). Volunteers will be monitored one, three, and six months after hospital discharge. The sample calculation was based on the results of the 6MWT , with a power of 80% for the assessments carried out at the proposing institution (n=206), and with a power of 90% for the multicenter project (n=275), considering a sample loss of 30%. The following will be evaluated: clinical parameters, severity indexes, functionality, lung function and mechanics, functional exercise capacity, mortality, inflammatory markers, energy expenditure, activities of daily living, quality of life, muscle assessment, adherence, barriers and facilitators and cost-effectiveness.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Enrollment
206
During hospitalization in the ICU and ward, you will perform 30 to 60 minutes of exercises per day, according to the IMS scale. After hospital discharge, participation in a supervised exercise program twice a week for 8 weeks at the Rehabilitation Center - CER of the Hospital das Clínicas of the Faculty of Medicine of Ribeirão Preto.
Functional exercise capacity
Assessed by the 6-minute walk test
Time frame: Through study completion, an average of 5 year
Clinical parameters
Hemodynamic data will be evaluated beafore and after the mobilization protocol
Time frame: Through study completion, an average of 5 year
Clinical parameters
Level of sedation evaluated by the Richmond Agitation-Sedation Scale (RASS). The scale ranges from -4 to +5, from the highest level of agitation to coma.
Time frame: Through study completion, an average of 5 year
Clinical parameters
Length of stay in the ICU (tICU) and Length of hospital stay (LoS)
Time frame: Through study completion, an average of 5 year
Clinical parameters
Time on mechanical ventilation (tMV)
Time frame: Through study completion, an average of 5 year
Severity indexes
Acute Physiologic and Chronic Health Evaluation II Score (APACHE II). This tool assesses the severity of the disease and mortality of patients admitted to the ICU, consisting of 12 variables that include: age, past medical history, as well as clinical and physiological indices.
Time frame: Through study completion, an average of 5 year
Severity indexes
Sequential Organ Failure Assessment Score (SOFA Score). This tool calculates both the number and severity of organic dysfunction in six organic systems (respiratory, coagulation, hepatic, cardiovascular, renal and neurological).
Time frame: Through study completion, an average of 5 year
Pulmonary function
Spirometry will be used as a tool to assess the lung function. The test will be performed by every volunteer and the measurement will be done by guidelines of the Brazilian Society of Pulmonology and Phthisiology for lung function tests.
Time frame: Through study completion, an average of 5 year
Pulmonary function
Impulse oscillometry system (IOS). This test will be perfomed to evaluate the resistance of the respiratory system in accordance with that proposed by Oosteveen (2003).
Time frame: Through study completion, an average of 5 year
Pulmonary function
Diffusing capacity of the lungs for carbon monoxide (DLCO). This is a pulmonary function test used to assess the lungs' ability to transfer gas from inspired air to the bloodstream. Normal severity slassification is up to 75% of the predicted value.
Time frame: Through study completion, an average of 5 year
Pulmonary function
Computed tomography (CT). The high-resolution CT technique with low dose of radiation will be used, without the administration of iodinated contrast medium, scanning the entire chest in the caudocranial direction, with volumetric acquisition of 1 mm in thickness during complete inspiration. Quantitative analysis of HRCT images will be performed using the scientific program Yacta version 2.8 (Heussel et al., 2009).
Time frame: Through study completion, an average of 5 year
Mortality
Time frame: Through study completion, an average of 5 year
Cost-effectiveness
Economic evaluation - Patient and Institution costs
Time frame: 12 months after study completion
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