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Neurological Emergencies

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Presentation on theme: "Neurological Emergencies"— Presentation transcript:

1 Neurological Emergencies

2 CONFLICT OF INTEREST / COMMERCIAL SUPPORT DISCLOSURE
This educational activity is being presented without the provision of commercial support and without bias or conflict of interest from the planners and presenters.

3 LECTURE OBJECTIVES Describe assessment considerations for a student who exhibits an altered level of consciousness. List assessment findings that indicate a neurologic problem requiring urgent or emergent care. Describe appropriate interventions for a student with abnormal neurologic findings. Discuss the unique challenges in assessment and treatment of neurologic emergencies involving students with special needs.

4 NEUROLOGICAL STATUS Key component in the assessment process
Provides important indicator of the student’s overall condition An accurate assessment helps Identify neurologic deficits Track changes in level of consciousness Assess the student’s risk for neurologic deterioration

5 NEUROLOGICAL STATUS Evaluating neurologic status is a vital component of the assessment process

6 ALTERED MENTAL STATUS Traumatic injury or shock Vascular emergencies
Tumor that impinges on CNS structures Infection directly affecting CNS accompanied by high fever

7 ALTERED MENTAL STATUS Metabolic imbalance Chemical toxicity Anoxia
Diabetic emergencies Chemical toxicity Alcohol Drugs Toxic exposure Anoxia Abnormal electrical activity in the brain resulting in seizure Altered LOC may persist into the post-ictal state

8 SYSTEMATIC ASSESSMENT OF NEUROLOGICAL EMERGENCIES
Scene Safety Assessment Across-the-room Assessment

9 SYSTEMATIC ASSESSMENT
Initial Assessment Airway Breathing Circulation Disability Alert Verbal Pain Unresponsive Exposure

10 FOCUSED PHYSICAL EXAM Level of Consciousness SAMPLE AVPU Scale
Alert Verbal Pain Unresponsive See Table 7-2 Pediatric Glasgow Coma Scale (PGCS) Alertness (eye opening) Major CNS motor pathways (best motor response) Mentation (best verbal response) See Table 7-3

11 AVPU SCALE (page 130)

12 PEDIATRIC GLASGOW COMA SCALE (page 132)

13 FOCUSED MENTAL EXAM Orientation Memory Person, place and time Auditory
Visual Spatial Short-term Retrograde

14 FOCUSED NEUROLOGICAL ASSESSMENT
Facial symmetry Ability to swallow Pupil size and reactivity Extraocular movements (including the position of the eyes at rest and the presence of abnormal spontaneous eye movement) See Chapter 8 for detailed assessment techniques

15 FOCUSED ASSESSMENT Motor function Sensory function Cerebellar function
Orthostatic vital signs Additional assessments (See Appendix A)

16 EMERGENT CASES Altered level of consciousness Acute neurologic deficit
Generalized first-time seizure Status epilepticus Seizure with respiratory compromise Seizure following head injury

17 URGENT CASES Moderate headache with vomiting History of migraines
No neurologic deficit Early signs of VP shunt dysfunction Syncopal episode

18 NON-URGENT Generalized mild headache
Minor, asymptomatic head injury, without loss of consciousness Signs and symptoms of upper respiratory infection Signs and symptoms of sinus infection

19 TRIAGE (page 136)

20 REASSESSMENT & ONGOING MONITORING
Timely reassessment is particularly important in students with neurologic abnormalities A PGCS score that decreases by 2 or more points indicates a significant change in condition, requiring reassessment of ABCDs

21 DOCUMENTATION Chief complaint
History of initiating incident and past health history Events that occurred at school Neurologic findings and PGCS score Baseline vital signs with blood glucose level, if available Head-to-toe assessment Identification of problem or nursing diagnosis Interventions initiated and student’s response Ongoing reassessments and subsequent vital signs

22 HEAD INJURY Head injury Blunt force impact is highly common
May have no external evidence Cognitive impairment can be subtle For any injury above the clavicle, suspect C-spine injury

23 SPINAL CORD INJURY Spinal cord injury
Younger children are more often injured in the upper cervical vertebrae Initiate full spinal stabilization if there are signs of spinal cord injury Triage category is emergent

24 CONCUSSION Which gender do you think experience more concussions in similar sports? Boys or Girls?

25 CONCUSSION INCIDENCE IN THE UNITED STATES PATHOPHYSIOLOGY
3 million from all causes 1.1 – 1.9 million sport- and recreation-related concussions in children < 18 years of age annually Each day, more than 5 children, adolescents, or young adults die from concussion or mTBI PATHOPHYSIOLOGY Metabolic Mismatch Cellular Damage Release of Excitatory Amino Acid Neurotransmitters Axonal Stretch Injury

26 CONCUSSION SYMPTOMS Headache or pressure (25-78%) Nausea or vomiting
Dizziness or balance problems (50%) Double or blurry vision Sensitivity to light and/or noise Feeling sluggish, hazy, foggy, or groggy Concentration or memory problems Not feeling like self Insomnia or difficulty falling asleep

27 CONCUSSION SIGNS Appears dazed or stunned Moves clumsily
Answers questions slowly LOC, even briefly (incidence <10%) Shows mood, behavior, or personality changes (50%) Psychiatric disease criteria met (15-20%) Retrograde or anterograde amnesia Exhibits confusion, forgetfulness, being unsure of surroundings Impaired visual tracking or balance

28 CONCUSSION POSSIBLE SEQUELAE TESTING
Risk increases as number of concussion sustained increases Post-Concussion Syndrome Second Impact Syndrome (50% mortality) Chronic changes in motor function, cognitive function, sensation, and emotion Persistent decrease in attention, cognitive control, executive function and possible disruption of the developmental trajectory Possible development of psychiatric conditions TESTING Neuropsych testing ImPACT MRI – will pick up 30% Abbreviated trauma score Acute Concussion Evaluation (ACE) Many more

29 SYNCOPE Orthostatic hypotension Vasovagal reaction to anxiety or pain
Cardiac dysrhythmia Cardiac outflow obstruction Anemia Hypoglycemia Dehydration Medications Vertigo

30 SYNCOPE (page 139)

31 SEIZURE Types of seizures Partial seizures Generalized seizures
Febrile seizures Status epilepticus

32 TABLE 7-7 (page 140)

33 SEIZURE Common causes Fever Infection (meningitis, encephalitis)
Trauma Intracranial hemorrhage Toxic exposure Metabolic disturbances Anoxia Tumors Congenital or degenerative disorder

34 SEIZURE INTERVENTIONS
Do not put anything in the student’s mouth Do not restrict movement Protect the student from injury Remove eyeglasses Move hard or sharp objects away Get student out of chair Assist with airway maintenance if needed Carefully note duration of seizure Carefully note seizure activity for later documentation and evaluation

35 DIASTAT

36 POST-SEIZURE INTERVENTIONS
Stabilize the cervical Open and maintain the airway as necessary using the jaw-thrust maneuver If no possibility of spinal trauma, place student in left lateral recovery position Monitor for signs of respiratory compromise

37 ACTIVATE EMS First time seizure or no known history of seizure
Seizure/series of seizures persisting for more than 5 minutes Seizure with respiratory compromise Seizure following head injury Unexpected or atypical seizure in a student with a known seizure disorder

38 VNS Vagal Nerve Stimulator (VNS)
Students with intractable epilepsy may have a VNS Adverse effects are possible

39 IMPORTANT COMPONENTS Documentation Follow-up Prevention

40 SHUNT DYSFUNCTION Signs of Shunt Dysfunction Nausea & vomiting
Decreased activity Headache, irritability Changes in vision Seizures Emergent or Urgent triage category

41 AUTONOMIC DYSREFLEXSIA
Hypertensive crisis occurring in students with Quadriplegia Spinal nerve damage at or above T6 Triggered by painful or noxious stimuli Bladder distention Fecal impaction

42 AUTONOMIC DYSREFLEXIA
Signs Erythema of upper body Acute hypertension Bradycardia Cold lower extremities Severe headache

43 AUTONOMIC DYSREFLEXIA
Interventions Elevate head Loosen tight clothing Attempt to correct source of noxious stimuli If above doesn’t resolve crisis Triage as URGENT If above does resolve crisis Triage as NON-URGENT

44 HEADACHE Essential information
History and chronology of current complaint Recent food and fluid intake Duration and frequency of headaches Physician has diagnosed a specific headache condition Location and quality of pain Measures that relieve pain (position, medication) Factors that make pain worse Associated symptoms

45 HEADACHE ASSESSMENT Assessment Points P Q R S T
Problem: How does the student describe the chief complaint? Provoke: What makes the headache worse? Palliate: What makes the headache better? Q Quality: What is the quality or character of the headache? R Radiate: Does pain or discomfort seem to travel or move? S Severity: Using a developmentally appropriate assessment tool, how does the student rate the severity of pain or discomfort? Signs: What clinical signs accompany the problem? Symptoms: What subjective problems does the student report? T Timing: When did the problem start? Was the onset sudden or gradual?

46 TENSION HEADACHE Symptoms commonly reported with tension headaches include: Difficulty falling asleep and staying asleep Chronic fatigue, irritability, disturbed concentration Mild sensitivity to light or noise Generalized muscle aches

47 MIGRAINE HEADACHE Symptoms associated with migraine headaches may include: Sensitivity to light, noise, or odors GI problems, such as nausea or vomiting, abdominal pain, loss of appetite Sensations of being very warm or cold Fatigue or dizziness Fever (rare) Visual disturbances, such as blurred vision, bright flashing dots or lights, blind spots, wavy or jagged lines

48 HEADACHE COMPARISON

49 CONSIDERATIONS FOR STUDENTS WITH SPECIAL NEEDS
Condition Associated Complications Hydrocephalus with CSF shunt Increased intracranial pressure secondary to loss of shunt integrity, disconnection, infection, or obstruction Congenital heart disease Aortic stenosis, arterial occlusion, venous occlusion Diabetes Syncope, seizures; altered mental status due to hypoglycemia or DKA Hemophilia Intracranial hemorrhage from relatively minor trauma Myasthenia gravis Muscle weakness, ptosis, diplopia; ventilatory compromise due to myasthenic crisis Seizure disorder Seizures, status epilepticus; changes in consciousness associated with postictal state Sickle cell disease Cerebral infarction; hemorrhage

50 SUMMARY Neurologic dysfunction may arise after
Direct insult to the central nervous system Secondary effect of a systemic process Establish a baseline for identifying neurologic deterioration Any neurologic manifestation should be triaged as URGENT or EMERGENT except Mild headaches Minor, asymptomatic head injury

51 RESOURCES International Headache Society: www.ichd-3.org
CDC HEADS UP to Brain Injury Awareness: CT State Department of Education’s Concussion Education Plan: Brain Injury Alliance of CT: CT Concussion Task Force: Brain Injury Association of America: CT Athletic Trainers Association: CT Interscholastic Athletic Conference (CIAC) Officials Concussion Protocol: American Academy of Pediatrics: SNEMS-C Manual Chapter 7, pp Key points, p 587 Appendices A and B

52 QUESTIONS?


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