12.4 Neuroprognostication & Transport

Neuroprognostication: Multiple Modalities, Multiple Timepoints

Families and teams desperately want an early answer: “Will this child recover?” After pediatric cardiac arrest, early certainty is usually false certainty. The post-ischemic brain evolves over days. Sedatives, opioids, neuromuscular blockers, anticonvulsants, and temperature control all confound the neurologic exam. A single grim finding in the first hours—such as absent motor response while still sedated—does not equal a reliable prediction of permanent severe disability.

Core rule (memorize)

Neuroprognostication requires multiple modalities assessed at multiple timepoints. No isolated early test should drive irreversible decisions alone.

Multimodal toolkit (conceptual, exam-level)

Exact pediatric protocols vary by center, but the framework matches modern cardiac-arrest neuroprognostication science:

1. Serial neurologic examinations — pupillary responses, corneal reflexes, motor responses, evolving consciousness—interpreted only with knowledge of drugs and temperature.
2. Electroencephalography (EEG) — background pattern, reactivity, and epileptiform activity. Continuous EEG is increasingly emphasized when available for comatose, encephalopathic, or heavily sedated post-arrest children.
3. Neuroimaging — CT may identify edema, hemorrhage, or alternative diagnoses; MRI (when feasible later) better characterizes hypoxic–ischemic injury patterns.
4. Somatosensory evoked potentials and biomarkers — used in some advanced centers as adjuncts; never as lone early “stop care” switches.
5. Clinical trajectory over time — improving exam, resolving lactate, seizure control, and hemodynamic stability inform prognosis better than any one snapshot.

Timing philosophy

Do not make definitive poor-prognosis declarations in the immediate post-ROSC window based on a single data point. Allow time for:

• Clearance of sedatives/paralytics
• Completion of temperature-control phases when used
• Treatment of reversible contributors (hypoglycemia, hypotension, hypoxia, status epilepticus, electrolyte crises)
• Multidisciplinary pediatric critical care and neurology input

Adult ACLS materials often cite delays on the order of days after normothermia before formal prognostication; pediatric practice is likewise delayed, multimodal, and team-based. For PALS, the testable idea is the principle—multiple modalities × multiple times—not a memorized single laboratory cutoff.

Seizure Monitoring and Neuroprotective ICU Care

Post-arrest seizures are common and may be clinically subtle or nonconvulsive, especially in intubated, sedated children. Unrecognized seizures increase cerebral metabolic demand and can worsen secondary injury.

Practical teaching points

• Maintain a high index of suspicion for seizures after pediatric ROSC
• When available, continuous EEG monitoring is recommended in post-arrest care pathways—particularly if the child is unconscious, encephalopathic, or sedated
• Treat clinical and electrographic seizures per institutional status epilepticus protocols
• Avoid both undertreatment of status epilepticus and stacking sedatives without airway/hemodynamic readiness
• Optimize the entire neuroprotective bundle while EEG is underway: oxygen, CO2, BP >10th percentile targets, temperature ≤ fever-prevention goals, glucose stability

Transport and transfer to pediatric critical care

Most post-arrest children need capabilities beyond a general ward or limited emergency setting:

• Advanced airway and mechanical ventilation management
• Continuous arterial pressure and vasoactive infusions
• Continuous temperature control systems
• Continuous EEG and pediatric neurology collaboration
• Pediatric critical care nursing ratios and imaging access
• ECMO/ECLS capability in selected referral networks

Transfer to a pediatric critical care–capable center (PICU-level care) is a standard post-arrest disposition theme. Stabilize ABCs and hemodynamics for transport, secure the airway, continue monitoring, prevent fever and hypoxia during transfer, and use a team skilled in pediatric critical care transport when possible. Do not delay transfer for nonessential testing that will not change immediate safety—but do not transfer an unsecured, hypotensive, hyperthermic, or hypoglycemic child without addressing those threats first.

Family communication

Post-arrest care is as much relational as technical. Families need:

• Honest updates without false early certainty
• Explanation that prognosis takes time and multiple assessments
• Clear descriptions of what is being done now (ventilation, BP support, fever prevention, seizure monitoring)
• Opportunities to ask questions and participate in goals-of-care discussions when appropriate
• Support resources (social work, child life, palliative care consultation when indicated)

Avoid statements like “there is no chance” based on a single early exam. Avoid the opposite extreme of guaranteeing full recovery. Use transparent language: “We are treating aggressively and gathering information over time because early predictions are often wrong.”

Survivorship: The 2025 Recovery Take-Home

The Chain of Survival does not end at ROSC or even hospital discharge. 2025 resuscitation science elevates recovery and survivorship as an essential link. Children who survive cardiac arrest may face:

• Physical needs: weakness, coordination problems, chronic respiratory issues, need for rehabilitation therapies
• Cognitive needs: attention, memory, executive function, school performance changes—even when motor recovery looks good
• Behavioral / psychosocial needs: sleep disruption, anxiety, mood changes, PTSD symptoms in the child or family, social reintegration challenges

What teams should plan for

1. Early rehabilitation referrals when survival is expected
2. Neurodevelopmental follow-up after discharge—not a single “looks fine at discharge” check-box
3. School and caregiver support planning
4. Screening for behavioral and family stress outcomes
5. Clear discharge teaching on medications, equipment, red-flag symptoms, and return precautions

On the PALS exam, if a question asks what post-arrest systems of care include beyond the ICU phase, look for answers that mention rehabilitation, follow-up, and recovery/survivorship, not only defibrillation and epinephrine.

When the arrest was unexplained: evaluate the heart and the family

Inherited cardiac disease—cardiomyopathies and channelopathies—and coronary artery anomalies are common causes of sudden unexplained cardiac arrest in children, and the 2025 guidelines attach a distinct workup to it.

For a child who survives sudden unexplained cardiac arrest: obtain a complete past medical and family history, specifically asking about syncope, seizures, unexplained accidents or drowning, and sudden unexpected death before age 50 in relatives; review previous electrocardiograms; and refer to a cardiologist with expertise in inherited cardiac disease.

When a child does not survive: a complete unrestricted autopsy is recommended, ideally by a pathologist with cardiovascular pathology experience, with biological material preserved for genetic analysis. If the autopsy identifies no cause—which happens in up to a third of these cases—a postmortem genetic evaluation ("molecular autopsy") is recommended where resources allow, and first-degree relatives should be referred to a clinician or center with expertise in inherited cardiac disease and cardiac genetic counseling. Screening studies have diagnosed inherited cardiac disease in roughly 13% to 53% of first- and second-degree relatives, so the referral is not a formality—it is how the next arrest gets prevented.

Putting Chapter 12 together

Clinical scenario (synthesis)

A school-age child has ROSC after OHCA and arrives at a community ED. The team titrates oxygen, controls ventilation, supports BP above the 10th-percentile goals, starts fever prevention with central temperature monitoring, corrects glucose, and arranges critical care transport to a pediatric PICU. Continuous EEG later detects nonconvulsive seizures that are treated. Neurology and critical care avoid premature prognostication on hospital day 1; assessments continue over subsequent days. After survival, the discharge plan includes rehab and neurodevelopmental follow-up for cognitive and behavioral needs. That full arc—from ROSC physiology to survivorship—is modern post–cardiac arrest care.

Bottom line for 12.4: Predict neurologic outcome only with multiple modalities at multiple timepoints. Transfer to pediatric critical care, monitor and treat seizures, communicate carefully with families, and extend care into physical, cognitive, and behavioral recovery after discharge—the 2025 survivorship mandate.