Residency · Residency · Neurology

Neurological Prognostication and Goals-of-Care Conversations

Introduction

Neurologists are frequently called upon to prognosticate outcomes in patients with severe brain injuries, progressive neurodegenerative diseases, and other devastating neurological conditions. The ability to communicate prognosis clearly, compassionately, and accurately is among the most important skills a neurologist can develop. Poor prognostication leads to either premature withdrawal of care or prolonged suffering, while poor communication erodes trust and compounds family distress.

Principles of Neurological Prognostication

Accuracy and Honesty

Prognostication is an estimate of probability, not a guarantee, and this distinction should be communicated clearly. Uncertainty should be acknowledged openly rather than concealed behind false confidence. Prognostic assessments should be based on published evidence, validated scales, and multimodal data whenever possible. Overly precise predictions (such as "there is a 7% chance of recovery") should be avoided when the evidence does not support such precision; ranges or qualitative descriptors are often more appropriate.

Avoiding Self-Fulfilling Prophecy

Withdrawal of life-sustaining therapy (WLST) is the leading cause of death after severe brain injury. If clinicians prognosticate poorly and withdraw support based on that prognosis, the prediction becomes self-fulfilling. Objective, multimodal data should be used to support prognostic assessments (see Lecture 54 for cardiac arrest and Lecture 51 for coma). Adequate time for observation should be allowed before prognosticating, especially when confounders such as sedation, hypothermia, or metabolic derangement are present. Cognitive biases including anchoring bias, confirmation bias, and pessimism bias must be recognized.

Population-Level Versus Individual-Level Prediction

Most prognostic tools provide population-level estimates, and translating these to individual patients requires caution. Patients who fall outside typical prognostic models (due to young age, unusual etiology, or novel treatments) may not conform to published statistics. The specific patient's premorbid function, goals, values, and support system should always be considered.

Prognostic Tools and Scales

Traumatic Brain Injury

GCS at admission is a key predictor, with the motor score being the most predictive component. Bilateral absence of pupillary reactivity is a poor prognostic sign. CT findings are quantified using the Marshall classification and Rotterdam CT score. The IMPACT and CRASH prognostic models are validated calculators that integrate age, GCS motor score, pupillary reactivity, CT findings, and laboratory values to estimate 6-month mortality and unfavorable outcome.

Ischemic Stroke

Higher NIHSS scores predict worse functional outcomes, with scores greater than 20 associated with high mortality. Age and premorbid function are major determinants of post-stroke recovery. Infarct volume and location are important: large MCA infarcts, bilateral strokes, and brainstem strokes carry worse prognoses.

Intracerebral Hemorrhage

The ICH Score incorporates GCS score, ICH volume, intraventricular hemorrhage, infratentorial origin, and age to predict 30-day mortality. Concerns about self-fulfilling prophecy are particularly relevant in ICH, where early WLST decisions are common.

Neurodegenerative Diseases

In ALS, the El Escorial criteria guide diagnosis and the ALSFRS-R tracks functional decline; median survival is 3-5 years from symptom onset, but variability is wide. Dementia staging tools (CDR, FAST) help estimate disease trajectory and facilitate planning. In Parkinson disease, Hoehn and Yahr staging tracks progression; life expectancy is near normal with treatment, but disability progresses over time.

Goals-of-Care Conversations

Framework: The REMAP Approach

The REMAP framework provides a structured approach. "Reframe" involves explaining the current medical situation clearly, using language such as "I wish I had better news, but I need to share with you what we are seeing." "Expect emotion" means allowing silence after delivering difficult information and acknowledging emotional responses empathetically. "Map values" involves exploring what matters most to the patient and family, asking questions like "What does a good quality of life look like for your loved one?" "Align" connects medical recommendations to the patient's values and goals. "Plan" proposes a specific plan that aligns with stated values, offering a time-limited trial when appropriate.

Communication Techniques

The Ask-Tell-Ask technique involves assessing understanding, providing information, and checking comprehension. Plain language should be used, with medical jargon avoided or defined when necessary. Naming the emotion ("I can see this is overwhelming" or "This is clearly very distressing") validates the family's experience. Euphemisms should be avoided when discussing death: "die" and "death" are clearer than "pass away" or "not make it." Providing a recommendation is more helpful than simply listing options: "Based on what you have told me about your father's values, I would recommend..." The distinction between what medicine can do and what it should do for a particular patient is important to articulate.

Navigating Specific Scenarios

The Family Requesting "Everything"

When families request "everything," it is important to explore what they mean, as it often means "everything that could help." The love and advocacy behind the request should be acknowledged. What treatments can and cannot achieve in the specific situation should be explained, and a time-limited trial with clear reassessment criteria can be offered.

Disagreement Among Family Members

The legal surrogate decision-maker should be identified. Different perspectives should be acknowledged with empathy, and the conversation should be refocused on the patient's known wishes and values. Family meetings with all relevant parties, social work, and chaplaincy support can help resolve disagreements.

Cultural and Religious Considerations

Cultural perspectives on death, dying, and medical decision-making deserve respect. Asking about spiritual and religious beliefs that may influence care decisions is appropriate. Hospital chaplaincy, cultural liaisons, or community religious leaders should be involved as appropriate. Some traditions may require continued life-sustaining treatment regardless of prognosis.

Advance Directives and Surrogate Decision-Making

An advance directive is a written document specifying a patient's healthcare wishes (living will) and/or designating a healthcare proxy (durable power of attorney for healthcare). When no advance directive exists, the surrogate decision-making hierarchy typically follows: spouse, adult children, parents, siblings, though this varies by state. The substituted judgment standard directs the surrogate to make the decision the patient would have made based on known values and preferences. The best interest standard, used when the patient's preferences are unknown, asks what a reasonable person would want in the situation. Neurologists should encourage advance care planning conversations early in the course of progressive neurological diseases such as ALS, dementia, and MS.

Palliative Care in Neurology (Neuropalliative Care)

Palliative care focuses on symptom management, quality of life, and psychosocial support. It is not synonymous with end-of-life care and can and should be integrated alongside disease-directed treatment. Common neurological symptoms requiring palliative management include pain, spasticity, dysphagia, communication difficulties, respiratory insufficiency, depression, and existential distress. Early palliative care involvement improves quality of life and may reduce caregiver burden. Hospice referral is appropriate when life expectancy is estimated at 6 months or less and the focus shifts to comfort.

Clinical Pearls

Prognostication in neurology carries immense weight because it directly influences decisions about life-sustaining therapy; assessments should be based on multimodal evidence, and uncertainty should be communicated honestly. The self-fulfilling prophecy is a well-documented phenomenon in neurocritical care, and premature withdrawal of support should be avoided before adequate observation time has elapsed and confounders have been addressed. Goals-of-care conversations should explore the patient's values and what constitutes acceptable quality of life, not simply list medical options for the family to choose among. Providing a clear recommendation aligned with the patient's values is more helpful to families than presenting an overwhelming array of choices without guidance. Early advance care planning in progressive neurological diseases (ALS, dementia) reduces crisis decision-making and improves concordance between patient wishes and care received.

References

1. Fins JJ, Bernat JL. Ethical, palliative, and policy considerations in disorders of consciousness. Neurology. 2018;91(10):471-475.
2. Holloway RG, Arnold RM, Creutzfeldt CJ, et al. Palliative and end-of-life care in stroke: a statement for healthcare professionals from the AHA/ASA. Stroke. 2014;45(6):1887-1916.
3. Creutzfeldt CJ, Kluger B, Kelly AG, et al. Neuropalliative care: priorities to move the field forward. Neurology. 2018;91(17):714-719.
4. Becker KJ, Baxter AB, Cohen WA, et al. Withdrawal of support in intracerebral hemorrhage may lead to self-fulfilling prophecies. Neurology. 2001;56(6):766-772.

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