Feasibility and Safety of Early Mobilization and Rehabilitation in Intensive Care Unit Patients

Intensive Care Unit Acquired Weakness (ICU-AW) is a common complication of critical illnesses, occurring in approximately 50% of ICU patients and is strongly associated with increased morbidity, physical impairments, and both short- and long-term mortality. The main characteristics of ICU-AW are symmetrical generalised muscle weakness affecting both respiratory and limb muscles; however, the clinical phenotype may differ depending on age, disease burden, length of ICU stay, and mechanical ventilation duration.

The objective of the present study is to evaluate the feasibility achieved and the safety outcomes reported in a cohort of critically ill patients who undergo early mobilisation and rehabilitation in intensive care units. This research is a multicentre prospective cohort study.

Prolonged immobilisation, mechanical ventilation, and sedation during critical illness have been associated with generalized muscle weakness, restricted joint mobility, pressure ulcers, critical illness neuropathies or acquired weakness, deep vein thrombosis (DVT), prolonged mechanical ventilation, psychological disorders, and cognitive impairment. Barriers to early mobilisation have been identified, including patient-related, institution-related, and physician-related barriers, and various strategies have been used to overcome these barriers and facilitate the smooth practice of early mobilisation.

Early mobilisation, initiated within 24-48 hours of Intensive Care Unit (ICU) admission, has been shown to be the best strategy for reducing ICU-acquired weakness (ICUAW). It includes a variety of interventions: passive for non-cooperative patients (e.g., positioning, passive joint mobilisation) and active-assisted or active for less or fully cooperative patients (e.g., active or active-assisted joint mobilisation, sitting on bed or chair, transfers, standing, ambulation). Several studies have provided evidence that progressive early mobilisation of adult ICU patients is feasible, safe, and can yield benefits including improved functional outcomes and reduced ICU and hospital stay durations.

Successful implementation of an early physical rehabilitation program in most ICUs requires a structured process to promote quality improvement. This involves a multidisciplinary approach including hospital administrators, ICU and rehabilitation leaders who support the program and promote a culture change within the ICU. It also requires assembling a multidisciplinary team including intensivists, nursing, clinical nutrition, physical medicine, and rehabilitation; establishing a common goal and shared expectation of early rehabilitation for all patients with focused efforts to identify and overcome barriers to achieving this goal; and obtaining basic equipment to facilitate early rehabilitation.

Eligibility Criteria:
Inclusion Criteria:

* Patients ≥ 18 years of age admitted to the intensive care units.

Exclusion Criteria:

* Patients requiring extracorporeal membrane oxygenation (ECMO).
* Patients without indication for early mobilisation in the ICU (severe hemodynamic instability, acute brain or spinal injury with rest orders, anaemia (Hb \&amp;amp;lt;8 mg/dl), thrombocytopenia (platelets \&amp;amp;lt;50,000), active systemic inflammatory response according to institutional protocols).
* Patients in the postoperative period of cardiac transplantation.