1) A 58-year-old man fell from a roof and was brought to the ER with an initial GCS of 12, declining to 6 on admission. The priorities are to prevent secondary brain injury through aggressive management of hypotension, hypoxia, hypoglycemia and raised ICP.
2) An initial CT scan is recommended for patients with a GCS less than 13 to identify intracranial injuries. Surgical management may be required for mass lesions while medical management focuses on cerebral resuscitation and ICP control.
3) Spine injury must be ruled out through imaging due to the high incidence in head trauma patients. Immobilization and avoidance of unnecessary manipulation is important in management.
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Management of Head Trauma in ER
1. Management of
Head Trauma in
ER
Sumit Sinha
Associate Professor of Neurosurgery
Jai Prakash Narain Apex Trauma Center
All India Institute of Medical Sciences
2. AIIMS Trauma Workshop
Case Scenario
● 58-year-old male fell
from a roof in a small
rural town
● Initial GCS score = 12
● On admission after 2-
hour transfer, GCS
score is 6
What injuries would you suspect?
What are your priorities in managing this
patient?
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Objectives
■ Initial Management- A (with C1) – B – C
■ Initial Neuro-Assessment-D-
Glasgow Coma Scale
Pupils
■ Immediate Neurosurgical Management
CT Scan - when?
Neurosurgical Consult - when?
Recognition and treatment of Herniation
■ Other Considerations
C-Spine, Bleeding, Extremity #, Rest of Spine
■ Pitfalls
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Primary Aim of ER management
■ Prevent Secondary Brain damage at all costs
TREAT AGGRESSIVELY
❖Hypo tension (MAP > 90mmHg)
❖Hypoxia (PaO2 < 60mmHg)
❖Hypoglycemia
❖Fever
❖Raised Intra-cranial Pressure
❖Seizures
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Intracranial Pressure (ICP)
● Sustained increased ICP leads to decreased
brain function and poor outcome
● Hypotension and low saturation adversely affect
outcome
10 mm Hg = Normal
>20 mm Hg = Abnormal
>40 mm Hg = Severe
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Concept of ICP & CPP
CPP = MAP – ICP
Normal : > 60 mm Hg
Reduced : < 50 mmHg
When will ICP ↑?? Mass Lesions
- Bleeding EDH, SDH, Intraparenchymal bleed
Cerebral Edema Cytotoxic, Vasogenic
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Autoregulation
● If autoregulation is intact, CBF is maintained
constant between a mean BP of 50 to 150 mm
Hg.
● In moderate or severe brain injury,
autoregulation is impaired so CBF varies with
mean BP.
● The injured brain is more vulnerable to episodes
of hypotension, causing secondary brain injury.
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Monro-Kellie Doctrine
Venous
Volume
Arterial
Volume Brain CSF
Normal State – ICP Normal
Venous
Volume
Arterial
Volume
Brain CSFMASS
Compensated State – ICP Normal
Arterial
Volume
Brain
Venous
Volume MASS CSF
Uncompensated State – ICP Raised
ICP
(mmHg)
35
30
25
20
15
10
5
Volume
Volume-Pressure Curve
Herniation
Point of
Decompensation
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Initial Management – Airway
with C-Spine
PATENT ↓ OKAY Don’t Intubate until patient
needs sedation for some other procedure
THREATENED
Remains
Unresponsive
GCS ≦ 8
(CANNOT PROTECT AIRWAY)
Oral bleeding
Base of Skull
bleeding
OBSTRUCTED
Massive
Maxillofacial Trauma
Maxilla
Mandible
Associated Neck
Injury
* If C-Spine Injury is suspected, intubation should be performed by the
most experienced person available.
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Initial Management - Circulation
TREAT HYPOTENTION
Maintain Mean Arterial Pressure
above 90 mm Hg
USE
Crystalloids – RL/NS
Ionotrope Infusion if needed
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Initial Neuro-Assessment
■ Key History
◻ Mechanism of Injury
◻ Response at scene → Neuro-exam at scene → Change in
status
■ Note Glasgow Coma Scale (GCS 3-15)
■ Note Pupils : Size / Shape / Reaction
Note the symmetry of motor
Score Eye Opening Best Verbal Response Best Motor Response
6 Obeys Commands
5 Oriented Localizes Pain
4 Spontaneous Confused Flexed to Pain
3 To Speech Inappropriate Words Flexion of arms with ext of
legs(decorticate)
2 To Pain Incomprehensive sounds Extension
1 None No Verbalization None
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Classification of Head Injuries
A. Blunt or Penetrating
B. Mild, Moderate, Severe (Based on GCS)
Mild 14-15
Moderate 9-13
Severe 3-8
C. Morphology (Fracture and Intracranial)
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Mild Head Injuries
■ GCS 14-15
■ CT if LOC, Amnesia, Severe Headache,
Anticoagulation
■ Evaluate C-Spine
■ Prognosis is excellent
■ Mortality rate < 1%
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Moderate Head Injuries
■ Patients may be confused, somnolent
■ GCS 9-13
■ Admit observe ,repeat head CT with
frequent neuro checks
■ Prognosis is good
■ Mortality rate < 5 %
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Severe Head Injuries
■ GCS < 8/15
■ Mortality rate > 40%
■ Securing of A,B,C’s highest priority
■ Early Intubation
■ Hypotension associated with twice
mortality
■ Maintain Pco2 25-35 mm/Hg
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Initial Neurosurgical Management
■ WHEN TO GET A CT-SCAN ?
■ Patient Comatose (GCS<13)
■ Penetrating Trauma
■ Suspect Skull #
■ CSF Leak
■ Post Trauma Seizures
■ Focal Neurological signs (Motor/Pupils)
■ WHEN TO CALL A NEUROSURGEON?
■ All of the above
■ Abnormal CT Scan
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Medical Management
■ Recognize and treat ↑ICP / Herniation
Monitor : Decrease in Pulse+Ventilation+ ↑B.P.
Decrease in level of Consciousness
Dilated Pupil
Decrease in motor power (Contralateral - Dilat pupil)
■ Cerebral Resuscitation
◻ Euventilation
◻ Intubate if (Orotracheal) if GCS<8
◻ Mannitol Infusion 0.25-1.0 gm/Kg IV over 15 min
(Not in Hypotensives)
◻ Monitor Urine Output
◻ Spine Cleared – Elevate the Head to 30°
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Other Considerations
■ Seizure Focus/Post Traumatic Seizures (2-5%)
SAH, Bleed (Intracerebral, sub or extradural)
Witnessed seizure
Load Phenytion ≈ 11-15mg/Kg IV slow with cardiac monitoring
■ C-Spine
5%-20% of patients with severe HI will have C-spine injury
5%-10% with one spine # will have another one too
Therefore
C-Spine motion restriction and log-rolling till full spine cleared
■ Control of Bleeding
■ Immobilize other extremity fractures
22. AIIMS Trauma WorkshopALGORITHM FOR Mx OF MILD HEAD INJURY
•History
•G/E
•Neurological
examination
•Skull X-Ray
•Cervical spine X-Ray
•Blood Alcohol levels
CT HEAD - ideally in all but
completely asymptomatic pts
ADMIT DISCHARGE
•Amnesia
•H/o LOC
•Deteriorating
consciousness
•Moderate-severe headache
•Alcohol/drug intoxication
•Skull fracture
•CSF leak
•Significant ass injuries
•Abnormal CT scan
•Does not meet criterion for
admssion
•Discuss need to return if problem
23. AIIMS Trauma WorkshopALGORITHM FOR Mx OF MODERATE HEAD INJURY
•Initial w/u
•CT SCAN IN ALL
CASES
ADMIT even if CT is normal
Frequent neurological examinations
FU CT Scan if deteriorates/before discharge
If pt improves (90%)
Discharge when stable
If pt deteriorates (10%)
Repeat CT Scan
Manage as per severe HI
24. AIIMS Trauma WorkshopALGORITHM FOR Mx OF SEVERE HEAD INJURY
•History
•Rescuscitation- ABC
•Catheters
•X-Rays-
Cx/Chest/Skull/Abdomen/Pelvis/Extremities
•G/E
Emergency measures for ass injuries:
•Tracheostomy
•Chest tubes
•Neck stabilization
•Abdominal paracentesis
Neurological examination
25. AIIMS Trauma WorkshopALGORITHM FOR Mx OF SEVERE HEAD INJURY
Intubate, Hyperventilate, Sedate, Mannitol (1g/kg)
CT Scan
Diffuse lesion
Not Available Exploratory burr holes
ICU
•Monitor ICP
•Elevate Head end
•Sedate
•Maintain Pao2 100 mm Hg
•Maintain PaCo2 27-30 mm
Hg
ICP still high Treat ICP
Surgical Lesion → OT
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Monitor ICP
ICP<20 ICP>20Check PaO2, PacO2
Head/ Neck position
Treat pain, Fever
Recalibrate ICP system
Repeat CT
Surgical Mass Lesion
Craniotomy
No Surgical mass lesion
•Mannitol
•Hyperventilate
•Barbiturate Coma
•DC
•Lobectomy
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Spine Trauma
■ C. Spine- 55%
■ Thoracic spine- 15%
■ T.L.Junction- 15%
■ L.S. spine-15%
➢ 5% of head injury pt.have spine injury
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Exclusion
■ Awake: Simple N. intact,Absence of
pain, tenderness along whole spine
■ Comatose: X-rays/ C.T. scan
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ASCI- Types
■ Complete: No motor/ sensory function
below the level of injury
■ Incomplete:Any motor/sensory below the
level- prognosis for recovery is better
■ Peri-anal sensation may be the only sign
of incomplete SCI
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Neurogenic Shock
■ Loss of sympathetic outflow from S. cord
■ Loss of vasomotor tone & sympathetic
supply to heart
■ Vasodilatation & pooling of blood-
hypotension
■ Bradycardia- No H.R. in response to
hypotension
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Neurogenic Shock
■ I.V. fluids alone may not help
■ Danger of fluid overload/P.Edema
■ Vasopressors / Atropine –significant
Bradycardia
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Spinal Shock
■ Complete flaccidity & loss of reflexes
■ Gen. lasts 24- 48 hrs
■ Anal & bulbo-cavernosus –first to return
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Pitfalls
■ Never attribute neurological abnormality solely
to the presence of alcohol / drugs.
■ Assume spinal Injury till ruled out
■ No naso-gastric / naso-tracheal tube if base skull
# suspected
■ Treat other life threatening bleeding first
■ Systolic pressure < 90 mmHg will lead to
secondary brain Injury
■ Poor Ventilation and Oxygenation will Increase
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Summary
■ Comatose patient- secure airway
■ Treat shock aggressively
■ Hypoxia and hypervolemia kill more patients
than brain injury.
■ Secondary brain injury makes primary brain
injury worse
■ If sedation or paralysis makes assessment
difficult, then treat the patient until the brain can
be assesed.