From Evaluation to Plan of Care: A Clear Approach to Disorders of Consciousness (DoC) Rehabilitation

Effective rehabilitation for people with disorders of consciousness (DoC) is highly individualized and grounded in each person’s complex and evolving needs. It relies on careful assessment, thoughtful goal setting, and evidence-informed treatment planning.

DoC are conditions in which awareness and responsiveness are impaired following severe brain injury. They typically include coma, unresponsive wakefulness syndrome, and minimally conscious state, with patients often demonstrating fluctuating and inconsistent behavioral responses.

Rehabilitation goals in disorders of consciousness

Rehabilitation goals for individuals with DoC can be organized into three overlapping domains:

1. Consciousness and communication goals

This domain focuses on identifying the individual’s current level of awareness and supporting reliable interaction with the environment. Core priorities include:

• Accurately assessing level of consciousness

• Identifying and addressing reversible medical contributors

• Trialing interventions to increase arousal and responsiveness

• Establishing reliable systems of communication and environmental interaction

2. Neuromusculoskeletal and medical goals

Due to the severity of neurological injury and prolonged immobility, proactive medical and musculoskeletal management is essential. Key objectives include:

• Preserving range of motion and preventing contractures

• Identifying and augmenting residual voluntary movement

• Promoting early mobilization and environmental enrichment

• Preventing secondary medical complications (e.g., skin breakdown, respiratory issues)

• Supporting foundational bodily functions such as respiration, nutrition, and elimination

3. Continuum of care goals

Rehabilitation planning must extend beyond the immediate clinical setting to ensure safe transitions and sustained support. Primary goals include providing ongoing caregiver education and support while initiating discharge planning and long-term care considerations early in the rehabilitation process. Proactive coordination helps reduce care gaps and better prepares families for evolving needs across settings.

While these domains guide overall rehabilitation priorities, effective treatment planning depends on accurate neurobehavioral assessment. Standardized evaluation provides the structure needed to determine where a patient falls along the continuum, and how to align interventions with observed capacity.

Neurobehavioral assessment

Standardized bedside neurobehavioral assessment is the cornerstone of DoC rehabilitation. Accurate diagnosis, prognostication, treatment planning, and caregiver education depend on consistent, structured behavioral evaluation.

The Coma Recovery Scale-Revised (CRS-R) is the most validated behavioral assessment tool for individuals with DoC. It is used to establish diagnosis, monitor behavioral recovery, predict outcomes, and evaluate treatment effectiveness. The CRS-R is designed to distinguish between unresponsive wakefulness, minimally conscious state, and emerging consciousness.

Key features of the CRS-R

• Target population: Individuals age six and older with acquired brain injury

• Structure: 23 items across six subscales (auditory, visual, motor, oromotor/verbal, communication, and arousal)

• Behavioral progression: Each subscale progresses from reflexive to cognitively mediated behaviors

• Administration format: Intended for serial administration to capture the fluctuating and evolving nature of DoC

Best practices for CRS-R administration

Accurate interpretation depends not only on the tool itself, but on how it is administered. Best practices include:

• Assessing during periods of optimal arousal

• Using salient, meaningful stimuli (e.g., familiar voices, culturally relevant items)

• Minimizing environmental distractions

• Repeating assessments across multiple sessions and times of day

• Clearly documenting scoring, stimuli presented, environmental context, and behavioral interpretation

Strengths and limitations of neurobehavioral assessment

While standardized tools provide essential structure, they must be interpreted within a clinical context.

Strengths include:

• Providing quantifiable, repeatable measures of function

• Capturing responses across sensory modalities

• Identifying treatment targets based on observed behavior

Limitations include:

• Medications that may suppress arousal and responsiveness

• Medical instability or autonomic dysfunction that may limit behavioral performance

• Motor and sensory impairments that may obscure true cognitive capacity

• Communication deficits that may create discrepancies between capacity and observable performance

Using CRS-R scores to inform treatment planning

Beyond diagnosis, CRS-R scores can serve as a practical framework for rehabilitation planning. Score ranges help guide intervention type and intensity while allowing flexibility based on individual presentation.

• Lower scores (generally less than 8): Emphasis on foundational care and stimulation, including hand-over-hand movement, positioning, basic arousal strategies, and structured sensory stimulation across modalities

• Mid-range scores (approximately 8 to 10): Emerging responsiveness supports progression toward active-assisted movement, early command-following, simple choice-making, and structured cognitive engagement

• Higher scores (greater than 10): More consistent awareness allows for active movement, task-specific practice, early activities of daily living (ADL) retraining, and increased participation in goal-directed activities

Tracking CRS-R trends over time helps clinicians detect subtle changes, adjust treatment intensity, and align goals with the individual’s current capabilities rather than relying solely on static diagnostic labels.

Sensory stimulation and regulation

One of the primary intervention domains informed by neurobehavioral assessment is sensory stimulation and regulation. This approach is considered a standard component of care for individuals with disorders of consciousness, with the primary aims of increasing arousal, preventing sensory deprivation, and promoting more consistent responses to environmental input.

Core goals include activating the reticular activating system, improving response consistency, promoting early command-following, and preventing overstimulation or habituation.

Implementation considerations

Successful implementation depends on thoughtful pacing and environmental control. Clinicians should:

• Present one stimulus at a time

• Allow extended response time

• Rotate stimuli to prevent habituation

• Regulate the environment to balance stimulation and rest

• Train caregivers to safely carry over strategies outside of therapy sessions

Sensory modality examples

Stimulation may be delivered across multiple sensory systems, depending on the individual’s tolerance and responsiveness:

• Visual: Mirrors, familiar photographs, bubbles, changes in scenery

• Auditory: Family voices, preferred music, familiar environmental sounds

• Olfactory: Familiar scents, spices, lotions, coffee (alcohol swabs when clinically appropriate for noxious stimulation)

• Gustatory: Flavored swabs, oral care, cold oral-motor stimulation

• Proprioceptive/vestibular: Range of motion, hand-over-hand tasks, position changes, wheelchair mobility

• Tactile: Preferred textures, blankets, clothing items, affective touch

Interpreting responses to stimulation

Responses generally fall into three observable categories:

• No response: No discernible reflexive or volitional change

• Generalized response: Non-specific or reflexive reactions (e.g., eye opening, changes in respiration)

• Localized response: Purposeful, stimulus-specific responses (e.g., turning toward sound, visual tracking, following simple commands)

Physical management

Individuals with DoC demonstrate complex physical presentations due to both the severity of neurological injury and prolonged immobility. The musculoskeletal system undergoes adverse changes in bone density, muscle mass, and soft-tissue integrity, increasing the risk for contractures and long-term deformity.

Although it is impossible to eliminate all physical sequelae associated with brain injury, a structured restoration and prevention program is necessary to maximize progress, decrease caregiver burden, and support optimal physical function.

Effective physical management programs typically emphasize the following core components:

• Range of motion: Regular passive and active-assisted movement to preserve joint integrity and minimize contracture development

• Orthotic management: Appropriate selection and monitoring of splints or positioning devices to support alignment and prevent deformity

• Upright positioning: Gradual tolerance to vertical positioning to support cardiopulmonary function and environmental engagement

• Bed and wheelchair positioning: Intentional positioning strategies to optimize alignment, prevent pressure injury, and facilitate safe mobility

Goal setting

Goal setting for individuals with disorders of consciousness differs significantly from traditional rehabilitation. Goals are not centered on independence but rather on tolerance, response consistency, risk reduction, and caregiver readiness.

Because individuals cannot actively collaborate in goal development, clinicians must design goals that reflect observable progress and support long-term care needs.

Goals can be organized into the following categories:

Assessment and documentation considerations

Misinterpretation of behavior remains a persistent risk in DoC care. Common pitfalls include relying on a single assessment, mislabeling reflexive behavior as volitional, and using vague or non-standardized descriptors.

Accurate documentation requires precise, structured language tied to standardized measures. Clinicians should document the context of the assessment, the stimuli presented, and any confounding factors that may influence performance to support consistent interpretation and continuity of care.

Guiding principles in DoC rehabilitation

Rehabilitation for individuals with disorders of consciousness requires patience, precision, and humility. Standardized neurobehavioral assessment, paired with thoughtful interpretation and responsive treatment planning, enables clinicians to recognize meaningful change, guide intervention, and support families through uncertainty. When used intentionally, tools such as the CRS-R function not only as diagnostic instruments but also as structured frameworks for care across the continuum of recovery.

References

1. Edlow, B. L., Claassen, J., Schiff, N. D., & Greer, D. M. (2021). Recovery from disorders of consciousness: Mechanisms, prognosis and emerging therapies. Nature Reviews Neurology, 17(3), 135–156. https://pubmed.ncbi.nlm.nih.gov/33318675/

2. Giacino, J. T., Schnakers, C., Rodriguez-Moreno, D., Kalmar, K., Schiff, N., & Hirsch, J. (2009). Behavioral assessment in patients with disorders of consciousness: Gold standard or fool's gold? Progress in Brain Research, 177, 33–48. https://pubmed.ncbi.nlm.nih.gov/19818893/

3. Lombardi, F., Taricco, M., De Tanti, A., Telaro, E., & Liberati, A. (2002). Sensory stimulation for brain injured individuals in coma or vegetative state. Cochrane Database of Systematic Reviews, 2002(2), Article CD001427. https://pubmed.ncbi.nlm.nih.gov/12076410/

4. Schnakers, C., & Monti, M. M. (2020). Towards improving care for disorders of consciousness. Nature Reviews Neurology, 16(8), 405–406. https://pubmed.ncbi.nlm.nih.gov/32273598/

5. Weaver, J. A., Watters, K., & Cogan, A. M. (2023). Interventions facilitating recovery of consciousness following traumatic brain injury: A systematic review. OTJR: Occupation, Participation and Health, 43(2), 322–336. https://pubmed.ncbi.nlm.nih.gov/36047664/