Effects of Mobility Dose on Discharge Disposition in Critically Ill Stroke Patients
Effects of Mobility Dose on Discharge Disposition in Critically Ill Stroke Patients
The primary aim of the study is to assess the mobility dose in neurocritical care patients
 with ischemic stroke or intracranial hemorrhage and its effects on discharge disposition and
 patient outcomes. The investigators hypothesize that patients' mobilization dose in the
 intensive care unit (ICU) predicts discharge disposition, 90 day Barthel Index and other
 outcomes like muscle wasting (expressed as decrease in rectus femoris cross sectional area
 (RF-CSA) in the paretic and non-paretic limb measured by bedside ultrasound), and ICU length
 of stay (LOS).
The investigators have previously developed and validated the Surgical Intensive Care Unit
 Optimal Mobilization Score (SOMS), an algorithm to guide and facilitate early mobilization to
 advance mobility of surgical intensive care unit patients (NCT01363102). In addition, the
 investigators have established the use of bedside ultrasound technology to quantify cross
 sectional area of the rectus femoris muscle, which allows an objective, user-independent
 quantification of muscle wasting (NCT02270502).

 This is a prospective, observational study to observe the relation between mobility dose,
 muscle wasting and patient outcomes in critically ill stroke patients.

 Patients will be enrolled within 48 hours of ICU admission. The investigators will measure
 the dose of activity, that is duration and intensity of mobilization in critically ill
 patients with ischemic stroke and intracerebral hemorrhage. By mobility "dose" the
 investigators are referring to all provider-directed activities (by nursing, and physical
 therapists) meant to enhance the patient's mobility level. The investigators take into
 account mobility "dose", defined as a function of both the mobility level (e.g., sitting at
 the edge of the bed, ambulating) as well as its duration. Of note, there is so far no
 published data available that describes patients' mobility "dose" in such an integrative,
 semi-quantitative fashion.

 The investigators use the existing mobility intensity quantification tool (MQS) (NCT03196960)
 and test the hypotheses that mobilization dose predicts muscle wasting in critically ill
 stroke patients, adverse hospital discharge disposition as well as 90 day Barthel Index. The
 investigators will apply hierarchical testing to evaluate the association between
 mobilization dose and discharge disposition as well as 90-day Barthel Index.

 The Mobilization Quantification Score (MQS) is a composition of the validated ICU mobility
 score (SOMS), a 0 to 10 value scale that measures the mobility milestones in critically ill
 patients, multiplied by a for each level previously defined time unit (5 or 30 minutes
 correspond to one unit depending on mobilization level).

 In order to capture the muscle status at ICU admission, determined by the first bedside
 ultrasound of the rectus femoris muscle after enrollment, and the change in rectus femoris
 muscle diameter throughout stay, the investigators will conduct repetitive measurements of
 the cross sectional area of the rectus femoris muscles (RF-CSA) of both legs. This
 longitudinal setting will allow to investigate muscle wasting due to immobilization and other
 severe illness related factors in the paretic and non-paretic limb.

 The investigators will conduct a scheduled phone call 30 days and 90 days after hospital
 discharge by getting in contact with either the patient or a family member to obtain
 follow-up data. This conversation will include questions that allow to identify the Barthel
 Index at 30 days, the Barthel Index and GOS-E score at 90 days, and if the patient has been
 readmitted to a hospital within 30 days of hospital discharge and mortality.

 Discharge disposition is defined as discharge to facilities providing long-term care
 assistance for daily activities, including nursing homes and skilled nursing facilities,
 hospice at the patient's home, hospice in a health care facility; or in-hospital mortality.
 The Barthel Index is a measure of functional disability originally designed to evaluate
 progress of rehabilitation in patients with stroke and neuromuscular disease. The GOS-E
 (Extended Glasgow Outcome Scale) is a global scale for functional outcome that rates patient
 status into eight categories: Dead Vegetative State, Upper and Lower Severe Disability, Upper
 and Lower Moderate Disability, Upper and Lower Good Recovery.
Inclusion Criteria:

 -  Aged 18 years and older

 -  Admitted to the neurological intensive care service within the past 48 hours

 -  an expected ICU length of stay of at least 48h

 -  New onset ischemic stroke or non-traumatic intracerebral hemorrhage

 -  Baseline functional independence: Barthel-Index of 70 or above 2 weeks before
 admission (obtained retrospectively from patient or proxy)

 Exclusion Criteria:

 -  Transfers from other institutions (hospitals, long-term rehabilitation facilities,
 skilled nursing facilities) with a stay >48h at the outside institution

 -  absence of lower extremities

 -  not committed to full support

 -  exclusive or clinically predominant posterior circulation ischemic stroke

 -  subarachnoid hemorrhage, subdural and epidural hemorrhage