Basics of Trauma Care😊

Basics of Trauma Care

Pre-Hospital Information

  • From Responders (MIST):
    • Mechanism of Injury
    • Injuries observed
    • Signs & Symptoms
    • Treatment given
  • From Patient (AMPLE):
    • Allergies
    • Medications
    • Past medical history
    • Last meal
    • Events of trauma

Patient Transfer

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Position / Action
Purpose / Note
Supine Position
For stability
Requires
3 straps: pelvis, head/neck, thorax
Prone Position
To prevent aspiration
Never Lateral
Cervical spine cannot be stabilized
Helmet Removal
Requires two persons
Complete Immobilization
Involves both cervical + dorsal spine
  • Manual In-Line Stabilization

Mortality in Trauma (Trimodal Distribution)

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Time Frame
Conditions
At Impact
- Severe head injury
- Aortic transections
Within 1 Hour
Airway:
- Obstruction
- Tracheobronchial injury
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Breathing:
- Open pneumothorax
- Tension pneumothorax (?m/c cause of death following trauma)
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Circulatory:
- Acute circulatory arrest
-
Hemothorax
-
Cardiac tamponade
Golden Hour
Managing patients within the first hour significantly reduces mortality
Days/Weeks Later
- Delayed head injury
-
Sepsis

Triage (Sorting by Priority)

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Number
Name
Colour
Description
P1
Emergency / Immediate
Red
- Causes that lead to death within 1 hour

- Mx:
immediate
P2
Urgent
Yellow
- Compound fractures
- Degloving
- Spinal injury
- Pelvic fractures

- Mx:
Stabilize first, Rx can wait < 6 hrs
P3
Delayed
Green
- Walking wounded (minor bruises, lacerations)
- Simple fractures
- Mx:
First aid
P4
Expectant
Blue
- Moribund patients
- Rx:   
• Supportive care (pain relief)   
• Definitive Rx not possible
–
Dead
Black
Dead bodies

Advanced Trauma Life Support (ATLS)

  • Approach:
    • Primary Survey (1° Survey): 
      • Address life-threatening injuries (ABCD).
      • CXR, Pelvic Xray, eFAST
        • notion image
    • Secondary Survey (2° Survey): 
      • Detailed head-to-toe assessment.
      • CT Scan

Primary Survey (C → ABCD)

Cervical Spine (C-Spine)

  • Assessment (NEXUS Criteria - if any positive, assume C-spine injury → ):
    • Neurological deficit
    • Unable to provide history (altered sensorium)
    • EtOH (intoxication)
    • eXtreme distracting injuries
    • Spinal midline tenderness
  • Imaging: C-spine X-ray
  • SPINE/SHINE
    • Spinal midline tenderness
    • Provide history
    • Injury → extreme
    • Neurological deficit
    • Ethanol

Airway (A)

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  • Secure Airway if:
    • Unable to speak
    • GCS ≤ 8
    • Coma
    • Severe maxillofacial injury
    • Jaw thrust
Head Tilt Chin lift
      Jaw thrust
      Head Tilt Chin lift
  • Emergency Airway:
    • Needle Cricothyroidotomy:
      • Through cricothyroid membrane.
      • Provides 20-30 min of oxygenation.
      • Contraindicated: 
        • Patients < 12 years.
  • Definitive Airway: 
    • Tracheostomy (if needle fails).

Permanent tracheostomy

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Indications of Tracheostomy

Mnemonic: Occupy Most Seats in Medical Association
  • O → Obstruction: Above T₂–Tâ‚„
  • M → prolonged Mechanical ventilation:
    • Most common indication for elective tracheostomy
  • S → Secretion removal / pulmonary toilet (coma, chest injury)
  • M → Maxillofacial, head & neck surgeries
  • A → Aspiration prevention (bilateral complete vocal cord palsy)

Tracheostomy Tube :

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  • High volume, low pressure.
  • For air tight seal.

Position :

  • Rose’s position :
    • Extension at cervico-thoracic and atlanto-occipital joint.
    • Rose has extension everywhere

Tracheal incision :

  • 2, 3, 4 tracheal rings.
    • notion image
  • Emergency
    • Vertical incision :
      • From lower border of cricoid to suprasternal notch
  • Elective
    • Horizontal incision/Skin crease incision :
      • 2.5 cm above suprasternal notch
  • High tracheostomy :
    • Incision at T1
    • Indication : Ca larynx.
    • Complication : Laryngeal stenosis
      • notion image
  • Low tracheostomy :
    • Infections like Papillamatosis

Tube block :

  • C/f of complete block : Stridor.
  • Prevention : Saline/sodium bicarbonate suction.
  • Management : Change tracheostomy tube.

Structures Injured During Tracheostomy

  • Isthumus and below vessels
    • Isthmus of thyroid gland
    • Arteria thyroidea (Thyroid Ima artery)
    • Inferior thyroid vein
  • Surgical emphysema
    • D/t tight sutures → injure nearby structures

Notes:

  • Nasotracheal intubation: 
    • Contraindicated in head injury
      (due to anterior cranial fossa fracture risk).
  • Laryngeal mask airway (LMA) is easier to insert.
    • notion image

Breathing (B)

  • Assessment: Chest examination (AP)
  • Adjuncts: Pulse oximetry, Chest X-ray (AP), eFAST scan.
  • Intervention: Chest tubes (if indicated).

Circulation (C)

  • IV Access:
    • Minimum 2 large-bore 18 G (green) or larger IV cannulas.
  • Fluid Administration: 1 liter IV fluids (ATLS 10th ed.).
  • Alternative IV Access:
    • notion image
    • Emergency: 
      • Intraosseous (just below tibial tuberosity),
        • notion image
      • Venous cutdown (great saphenous vein).
    • Definitive: 
      • Central line (IJV most common).
  • Tranexamic Acid (CRASH-2 trial):
    • Indication: 
      • SBP < 90 mmHg
      • HR > 110 bpm.
    • Dose: 
      • Give within 3 hrs of injury
      • 1g IV over 10 min
      • - then 1g over 8 hrs.
    • Effect: Decreases mortality.
  • Pelvic Binder:
    • notion image
    • Use: Trauma with hypovolemic shock.
    • Mechanism: Stops bleeding by tamponade effect until fracture ruled out.
  • Damage Control Resuscitation (DCR):
    • Permissive hypotension.
    • Minimal crystalloid use.
    • 1:1:1 blood product ratio (RBC:Platelet:FFP).
    • Early hemorrhage control.

Disability (D)

  • Glasgow Coma Scale (GCS):
    • notion image
  • Head Injury (Based on GCS)
    • Mild: 13–15
    • Moderate: 9–12
    • Severe: ≤ 8
  • GCS-P Score: 
    • GCS (-) Pupillary Reactivity Score (PRS).
    • Min: 1
      • Pupils unreactive to light
        Pupils Reactivity Score (PRS)
        Both pupils
        2
        One pupil
        1
        Neither pupil
        0
  • Log Roll:
    • Purpose: Examine patient's back.
    • Personnel: Requires 4 people (5 if limb fracture).

Whole-Body CT (Trauma CT) in RTA

  • Part of ATLS protocol to assess life-threatening injuries.
  • NOT PRIMARY SURVEY

Components

  1. CT Brain
      • Detect intracranial hemorrhage
      • Skull fractures
  1. CT Spine
      • Evaluate spinal injuries (common in high-energy trauma)
  1. CT Abdomen & Pelvis
      • Identify internal organ injury
      • Detect bleeding or fractures

Note:

  • CT within 1 hour if
    • GCS < 13 at any point of time
    • GCS < 15 after 2 hours of the injury.
    • Focal neurological deficit
    • Suspected skull fracture
      • Open
      • Depressed
      • Basal
    • > 1 episode of vomiting
    • Post-traumatic seizure
  • CT within 8 hours if
    • Age > 65 years
    • Bleeding or clotting disorder
    • Dangerous mechanism of injury
      • Fall > 1 m
      • Fall > 5 stairs
      • Road traffic accident
    • Retrograde amnesia > 30 minutes

Trauma Scores

Revised Trauma Score (RTS): 

  • Similar to qSOFA
  • Uses SBP, Respiratory Rate, GCS.
  • One from each system (CVS, Resp, CNS)
  • No Pulse rate

TRISS

  • Mechanism of injury (blunt/penetrating).
  • Age
  • Revised Trauma Score (RTS)
  • Injury Severity Score (ISS)
  • Mnemonic: TRISSa in MARI movie ()

Mangled Extremity Severity Score (MESS): 

  • Used for limb salvageability
      • Messi = 7, Visa Kitti → But ponel kaalu vettanam
      • Score ≤ 6 = salvageable
      • Score ≥ 7 = Amputation (Not salvagable)
        • Mnemonic: VISA.
          • V: Velocity of injury or soft tissue coverage.
          • I: Ischemia time (most important).
          • S: Shock.
          • A: Age of patient.
      • Messed up leg → 6 thavayil kuravu tyre kalil kude keri irangiyal rakshapedutham else amputate

Damage Control Surgery (DCS) and
Early Total Care (ETC)

Criteria

  • DCS:
    • Terrible Triad of Trauma
    • Serum Lactate > 5 mmol/L
    • Transfusion approaching 15 units
    • Injury Severity Score > 36
    • BP < 70 mmHg
    • Mnemonic: CAT + 5, 15, 36, 70
  • ETC:
    • Stable hemodynamics
    • Normal serum lactate
    • Normal coagulation
    • Normothermia
    • No need for vasoactive/inotropic stimulation

ETC Approach

  • Definitive Management: 
    • Within 36 hours (after resuscitation)
  • If patient deteriorates: 
    • Convert to DCS approach

DCS (Abbreviated Laparotomy)

  • In terrible triad of trauma
    • Mnemonic: CAT (Coagulopathy, Acidosis, Temp ↓↓) makes Terrible trauma
        1. Hypothermia (< 34°C)
        1. Acidosis (pH < 7.2)
        1. Coagulopathy
  • Phases (ATLS):
    • Phase
      Location
      Action
      Phase 0
      ER
      Patient identification
      Phase 1
      Emergency OT
      Stop bleeding, prevent contamination
      Temporary Abdominal Closure
      OT/Post-op area
      - Abdominal swab/cotton drape
      - Suction drains
      - Urobag/Bogota bag
      Phase 2
      ICU
      Correct physiology
      (
      Terrible Triad)
      Phase 3
      After 24–48 hrs:
      Re-exploration OT
      Correct anatomy
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  • Stages of DCS:
      1. Patient selection
      1. Control of hemorrhage and contamination
      1. ICU care
      1. Definitive Surgery
      1. Abdominal closure

Abdominal Compartment Syndrome (ACS)

  • Intra-abdominal Pressure (IAP): 
    • Measured by bladder pressure
  • Causes:
    • Bowel obstruction
    • Massive burns
    • Massive ascites
  • Definitions:
    • Intra-abdominal Hypertension (IAH):
      • Sustained/repeated pathological ↑↑ in IAP > 12 mmHg
    • ACS: 
      • Sustained increased IAP ≥ 20 mmHg + new organ dysfunction
  • Clinical Features:
    • Renal:
      • Renal vessels compressed
      • Decreased GFR
      • Decreased urine output
    • Cardiac:
      • Decreased BP
      • Increased HR (due to decreased venous return)
    • Respiratory:
      • Increased Respiratory Rate (RR)
      • Decreased lung volumes
    • Intracranial: Increase in intracranial tension
  • Mx:
    • Decompressive Laparotomy

Blast Injury

  • Tympanic membrane (TM) rupture is the most common primary blast injury.
  • F/b Lungs and GIT
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Types of Blasts:

  1. Airblast
    1. notion image
  1. Immersion Blast/Underwater blast
      • Most significant: GIT injury
  1. Solid blast.
      • Occurs when a body part
        • Is in contact With a solid vibrating surface.
      • Force of blast passes
        • Through the surface Leads to injury.
      • Example: Person on shipdock during underwater blast.
Type of Airblast
Notes
Primary
• Blast wave
• Wave starts from explosion site 
• Spreads
concentrically outwards (non-directional).

Affects air filled organs: 
•
Ear: Tympanic membrane rupture (m/c primary).
•
Lungs: ARDS - Blast lung (most fatal primary). 
•
GIT: Perforation.
Secondary
• Flying missiles/ projectiles/shrapnels
• Most common blast injury 
• Missiles fly at
high speed 
•
Impact on victim with large force.

Marshall's Triad: (All on the same side of body) 
↳ Punctuate Abrasion
↳ Contusion
↳ Laceration

•
Mnemonic: Marshal sent a missile
• Triad
helps identify direction of bomb blast occurrence.
Tertiary
• Wind/ Victim displacement in Bomb blasts 
•
Person thrown against nearby solid structure due to wind.
•
Skeletal injuries
Quaternary
• Miscellaneous
• Building collapse injuries (e.g., traumatic asphyxia).

Decerebrate vs Decorticate

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Decorticate Rigidity

  • Mnemonic: Decor → Red ribbon from up, Brown ribbon from down
  • Mnemonic: Corticate → Kuuttipidich irikkunnu → Red blood kandapo → hemorrhage → Rubral nucleus/Red nucleus → In midbrain → (Red → Mid) → Midbrain affected
  • Cut: Upper midbrain (above red nucleus).
  • Lower limb extension
  • Pathophysiology:
    • Decortication (Cortex removed) → Cortical inhibition lost
    • Pontine reticulospinal tract.
      • Head Extension
      • LL Extension
    • Rubrospinal tract is intact (and unopposed)(lesion above red nucleus)
      • Upper limb flexion → Decorticate rigidity
  • Cause:
    • Thrombosis or hemorrhage of internal capsule → Decorticate rigidity

Decerebrate Rigidity / Extensor rigidity / γ rigidity

  • Cerebrum prevents all extensor muscle always.
  • When it is lost → causes
      1. Extensor plantar → Babinsky
      1. Extension of UL, Head, LL → Extensor rigidity / γ rigidity
  • It is characterized by rigid extension of the limbs and trunk, not all muscles of body
  • Pathophysiology:
    • Cut: Upper pons (between superior/inferior colliculi).
    • Mechanism:
      • Cortical inhibition lost
        ↓
        Dorsal sensory roots activated
        ↓
        Pontine Reticulospinal tract overactive (++)
        ↓
        Gamma (γ)-motor neurons overactive (++)
        ↓
        Increased extensor muscle tone
        ↓
        Decerebrate rigidity / γ rigidity
  • Cause:
    • Uncal herniation (due to space occupying lesion)
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Decerebellate rigidity / α rigidity

  • Mechanism:
    • Anterior cerebellum removed (++)
    • → α Motor neurons overactive
    • → Exaggeration of extensor activity

Uncal Herniation & Kernohan’s Notch & Hutchinson pupil

Uncal herniation → 3
Uncal herniation → 3
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  • Uncal herniation:
    • Herniation of uncus (medial temporal lobe)
  • Progression:
    • Affect Parasympathetic fibers of ipsilateral cranial nerve III
      • Called "ipsilateral blown pupil" or "false localizing sign"
    • C/L corticospinal tract/crus cerebri compressed
      • I/L UMN palsy
  • Kernohan’s notch phenomenon:
    • False localizing sign
    • Hemiparesis appears ipsilateral to lesion
      • instead of expected contralateral

Key signs:

  • Ipsilateral pupil dilatation → Hutchinson pupil
  • Ipsilateral UMN palsy