Trial Outcomes & Findings for Use of Neuromuscular Electrostimulation (NMES) for Treatment or Prevention of ICU-Associated Weakness (NCT NCT00709124)

NCT ID: NCT00709124

Last Updated: 2018-01-23

Results Overview

Range 0 to 30 with higher score better. The composite score is a simple sum of the individual scores from the 3 bilateral muscle groups

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

36 participants

Primary outcome timeframe

At hospital discharge

Results posted on

2018-01-23

Participant Flow

3 medical and surgical ICUs at Johns Hopkins Hospitals screened for recruitment from 2008-2009 and 2010-2013 (39 months in total). Recruitment suspended for 17 consecutive months between 2009-2010 due to lack of staffing

2 patients (both randomized to the intervention group) were withdrawn PRIOR to any initiation of intervention due to new data arising after randomization (and before intervention initiation) that indicated the subject met the pre-existing exclusion criteria.

Participant milestones

Participant milestones
Measure
NMES
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Overall Study
STARTED
16
18
Overall Study
COMPLETED
12
17
Overall Study
NOT COMPLETED
4
1

Reasons for withdrawal

Reasons for withdrawal
Measure
NMES
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Overall Study
Death
3
1
Overall Study
encephalopathy; can't do assessment
1
0

Baseline Characteristics

Use of Neuromuscular Electrostimulation (NMES) for Treatment or Prevention of ICU-Associated Weakness

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
NMES
n=16 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=18 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Total
n=34 Participants
Total of all reporting groups
Age, Continuous
54 years
STANDARD_DEVIATION 16 • n=39 Participants
56 years
STANDARD_DEVIATION 18 • n=41 Participants
55 years
STANDARD_DEVIATION 16 • n=35 Participants
Sex: Female, Male
Female
9 Participants
n=39 Participants
8 Participants
n=41 Participants
17 Participants
n=35 Participants
Sex: Female, Male
Male
7 Participants
n=39 Participants
10 Participants
n=41 Participants
17 Participants
n=35 Participants
Region of Enrollment
United States
16 participants
n=39 Participants
18 participants
n=41 Participants
34 participants
n=35 Participants

PRIMARY outcome

Timeframe: At hospital discharge

Range 0 to 30 with higher score better. The composite score is a simple sum of the individual scores from the 3 bilateral muscle groups

Outcome measures

Outcome measures
Measure
NMES
n=12 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=17 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Lower Extremity Strength, at Hospital Discharge, of 3 Bilateral Muscle Groups (Pretibial, Triceps Surae, and Quadriceps) Measured Via MMT Using a Composite Medical Research Council (MRC) Score
28 units (range 0-30; higher is better)
Standard Deviation 2
27 units (range 0-30; higher is better)
Standard Deviation 3

SECONDARY outcome

Timeframe: ICU and hospital discharge

Population: Assessments can only be done on patients who were alive and were able to do participate in the assessment

Strength (in pounds) - measured via handheld dynamometry of tibialis anterior, gastrocnemius, and quadriceps

Outcome measures

Outcome measures
Measure
NMES
n=17 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=12 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Individual Muscle Strength Using Handheld Dynamometry: Tibialis Anterior, Gastrocnemius, and Quadriceps Muscle Strength
ICU Discharge-tibialis anterior
19 pounds
Standard Deviation 9
21 pounds
Standard Deviation 10
Individual Muscle Strength Using Handheld Dynamometry: Tibialis Anterior, Gastrocnemius, and Quadriceps Muscle Strength
Hospital Discharge-tibialis anterior
19 pounds
Standard Deviation 16
20 pounds
Standard Deviation 8
Individual Muscle Strength Using Handheld Dynamometry: Tibialis Anterior, Gastrocnemius, and Quadriceps Muscle Strength
ICU Discharge-gastrocnemius
39 pounds
Standard Deviation 10
31 pounds
Standard Deviation 17
Individual Muscle Strength Using Handheld Dynamometry: Tibialis Anterior, Gastrocnemius, and Quadriceps Muscle Strength
Hospital Discharge - gastrocnemius
31 pounds
Standard Deviation 14
36 pounds
Standard Deviation 17
Individual Muscle Strength Using Handheld Dynamometry: Tibialis Anterior, Gastrocnemius, and Quadriceps Muscle Strength
ICU Discharge - quadriceps
33 pounds
Standard Deviation 14
28 pounds
Standard Deviation 14
Individual Muscle Strength Using Handheld Dynamometry: Tibialis Anterior, Gastrocnemius, and Quadriceps Muscle Strength
Hospital discharge - quadriceps
30 pounds
Standard Deviation 16
33 pounds
Standard Deviation 14

SECONDARY outcome

Timeframe: ICU and hospital discharge

Population: Assessments can only be done on patients who were alive and were able to do participate in the assessment

Measuring strength of 6 muscle groups in arms and legs using Medical Research Council composite score (each muscle group scored from scale of 0 \[no visible or noticeable contraction\] to 5 \[maximum strength\] and the sum of the scores for the 6 muscle groups equate to a composite score ranging from 0 to 60, higher score is better).

Outcome measures

Outcome measures
Measure
NMES
n=12 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=17 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Overall Body Strength
ICU Discharge
49 MRC Composite Score
Standard Deviation 6
48 MRC Composite Score
Standard Deviation 8
Overall Body Strength
Hospital Discharge
53 MRC Composite Score
Standard Deviation 4
50 MRC Composite Score
Standard Deviation 7

SECONDARY outcome

Timeframe: ICU and hospital discharge

Population: Assessments can only be done on patients who were alive and were able to do participate in the assessment

Hand grip strength measured using a dynamometer (measured in kilograms, then compared to age- and sex-matched population norms to yield % predicted)

Outcome measures

Outcome measures
Measure
NMES
n=12 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=17 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Hand Grip Strength
ICU Discharge
34 % predicted
Standard Deviation 26
41 % predicted
Standard Deviation 42
Hand Grip Strength
Hospital Discharge
46 % predicted
Standard Deviation 25
40 % predicted
Standard Deviation 28

SECONDARY outcome

Timeframe: ICU and hospital discharge

Population: Assessments can only be done on patients who were alive and were able to do participate in the assessment

Measured using maximal inspiratory pressure (MIP) measurements that is then compared to predicted values for each participant (i.e., % predicted)

Outcome measures

Outcome measures
Measure
NMES
n=12 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=17 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Respiratory Muscle Strength
ICU Discharge
61 % predicted
Standard Deviation 16
51 % predicted
Standard Deviation 37
Respiratory Muscle Strength
Hospital Discharge
61 % predicted
Standard Deviation 16
51 % predicted
Standard Deviation 37

SECONDARY outcome

Timeframe: ICU and hospital discharge

Population: Assessments can only be done on patients who were alive and were able to do participate in the assessment

Evaluates a patient's physical function in the ICU setting. Each task is scored, ranging from 0 (unable to perform) to 7 (complete independence).The total score ranges from 0-35, with higher scores indicating better physical functioning.

Outcome measures

Outcome measures
Measure
NMES
n=12 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=17 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Functional Status Measured Using Functional Status Score for the Intensive Care Unit
ICU Discharge
20 FSS-ICU Score
Standard Deviation 10
19 FSS-ICU Score
Standard Deviation 6
Functional Status Measured Using Functional Status Score for the Intensive Care Unit
Hospital Discharge
30 FSS-ICU Score
Standard Deviation 7
26 FSS-ICU Score
Standard Deviation 8

SECONDARY outcome

Timeframe: Until hospital discharge

The number of days the patient was on mechanical ventilation.

Outcome measures

Outcome measures
Measure
NMES
n=16 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=18 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Duration of Mechanical Ventilation
20 days
Standard Deviation 18
16 days
Standard Deviation 15

SECONDARY outcome

Timeframe: ICU and Hospital discharge

The number of days that the patient was in the ICU and hospital, respectively.

Outcome measures

Outcome measures
Measure
NMES
n=16 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=18 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
ICU and Hospital Length of Stay
ICU Length of Stay
22 days
Standard Deviation 17
20 days
Standard Deviation 17
ICU and Hospital Length of Stay
Hospital Length of Stay
36 days
Standard Deviation 22
35 days
Standard Deviation 20

SECONDARY outcome

Timeframe: ICU discharge and Hospital discharge

The number of patients who died in the ICU and those who died by hospital discharge.

Outcome measures

Outcome measures
Measure
NMES
n=16 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=18 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
ICU and In-hospital Mortality
ICU Mortality
3 Participants
1 Participants
ICU and In-hospital Mortality
Hospital Mortality
3 Participants
3 Participants

SECONDARY outcome

Timeframe: Hospital discharge

The total dollar amount of charges from hospital stay

Outcome measures

Outcome measures
Measure
NMES
n=16 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=18 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Total Hospital Charges
163159 US dollars
Standard Deviation 117730
152968 US dollars
Standard Deviation 88683

SECONDARY outcome

Timeframe: Hospital discharge

Population: Assessments can only be done on patients who were alive and were able to do participate in the assessment

Discharge location after hospital stay.

Outcome measures

Outcome measures
Measure
NMES
n=13 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=15 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Hospital Discharge Destination (e.g., Home, Rehab Facility)
Home
5 Participants
8 Participants
Hospital Discharge Destination (e.g., Home, Rehab Facility)
Acute rehabilitation
4 Participants
6 Participants
Hospital Discharge Destination (e.g., Home, Rehab Facility)
Other
4 Participants
1 Participants

SECONDARY outcome

Timeframe: At hospital discharge

Population: Assessments can only be done on patients who were alive and were able to do participate in the assessment

Measured via manual muscle strength test using a composite Medical Research Council (MRC) score with each muscle group rated with score ranging from 0 (no visible or noticeable contraction of the muscle) to 5 (maximum strength). The sum of the scores for the lower limb muscle groups can range from 0 to 30 (higher score is better)

Outcome measures

Outcome measures
Measure
NMES
n=12 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=16 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Lower Extremity Strength, at Hospital Discharge, of 3 Bilateral Muscle Groups (Pretibial, Triceps Surae, and Quadriceps)
27 MRC Score
Standard Deviation 23
25 MRC Score
Standard Deviation 4

SECONDARY outcome

Timeframe: At ICU and Hospital discharge

Population: Assessments can only be done on patients who were alive and were able to do participate in the assessment

The mean change of the sum of the lower limb strength scores between awakening and ICU discharge and between ICU discharge and hospital discharge. Three lower limb muscle groups are assessed bilaterally (each muscle group scored from scale of 0 \[no visible or noticeable contraction\] to 5 \[maximum strength\]). The scores are then summed for each patient at each time point (range 0 -30, higher score is better).

Outcome measures

Outcome measures
Measure
NMES
n=16 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=18 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Mean Change in Subject's Lower Extremity Muscle Strength Composite Score From Baseline
Awakening to ICU Discharge
5.3 MRC Score
Standard Deviation 5.9
0.8 MRC Score
Standard Deviation 3.8
Mean Change in Subject's Lower Extremity Muscle Strength Composite Score From Baseline
ICU Discharge to Hospital Discharge
5.7 MRC Score
Standard Deviation 5.1
1.8 MRC Score
Standard Deviation 2.7

SECONDARY outcome

Timeframe: During ICU stay - on days with study (NMES/Sham) session

Proportion of ICU days the patient had delirium

Outcome measures

Outcome measures
Measure
NMES
n=106 Days of session
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=172 Days of session
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
ICU Delirium
67 Mean % delirious days
Standard Deviation 34
66 Mean % delirious days
Standard Deviation 32

SECONDARY outcome

Timeframe: ICU and hospital discharge and change over time

Population: This was an a priori subgroup analyses of patients who had mechanical ventilation duration \>=7 days. Not all participants could be evaluated at each time point (e.g. cognitive status) and this explains the different sample sizes for each outcome.

For patients with \>= 7 days of mechanical ventilation, we will compare the 2 groups for the following outcomes: Lower extremity muscle strength, mean change in whole body muscle strength score from baseline to ICU discharge, mean change in whole body muscle strength score from baseline to hospital discharge, and whole body muscle strength score at ICU discharge and at hospital discharge. Each muscle group is assessed bilaterally (scale of 0 \[no visible or noticeable contraction\] to 5 \[maximum strength\]). There are three muscle groups assessed bilaterally for lower extremity (hip flexion, knee extension, and ankle dorsiflexion) (score range 0-30, higher score is better i.e. stronger); while for whole body strength assessment (score range 0-360, higher score is better), the following additional muscles are assessed: shoulder abduction, elbow flexion and wrist extension. The scores are then summed for each patient at each time point.

Outcome measures

Outcome measures
Measure
NMES
n=11 Participants
60 minute daily NMES sessions every day for the duration of subject's ICU stay. Neuromuscular Electrostimulation (NMES) CareStim Muscle Stimulation Device (Care Rehab; McLean, VA): 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay.
Sham
n=14 Participants
60 minute sham sessions every day for the duration of subjects ICU stay. No voltage will be applied to those receiving sham sessions. Sham: 60 minute NMES sessions will be applied to three muscle groups of the lower extremities (quadriceps, pretibial, and triceps surae). Sessions start at study entry, and will occur every day for the duration of subject's ICU stay. Sham groups will NOT have voltage applied.
Subgroup Analysis
Lower extremity muscle strength at ICU discharge
27 muscle strength score (higher is better)
Standard Deviation 2
25 muscle strength score (higher is better)
Standard Deviation 4
Subgroup Analysis
Lower extremity muscle strength at hospital discha
28 muscle strength score (higher is better)
Standard Deviation 2
27 muscle strength score (higher is better)
Standard Deviation 3
Subgroup Analysis
Whole body muscle strength score at ICU discharge
48 muscle strength score (higher is better)
Standard Deviation 6
48 muscle strength score (higher is better)
Standard Deviation 8
Subgroup Analysis
Whole body muscle strength score at hospital disch
53 muscle strength score (higher is better)
Standard Deviation 4
50 muscle strength score (higher is better)
Standard Deviation 7
Subgroup Analysis
Mean change in whole body strength (bsln to ICU)
7.9 muscle strength score (higher is better)
Standard Deviation 8.8
3.4 muscle strength score (higher is better)
Standard Deviation 5.7
Subgroup Analysis
Mean change-whole body strength (bsln to hosp. dc)
11.6 muscle strength score (higher is better)
Standard Deviation 8.9
5.8 muscle strength score (higher is better)
Standard Deviation 5.4

Adverse Events

NMES

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Sham

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Dr Dale Needham

Johns Hopkins University School of Medicine

Phone: (410) 955-3467

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place