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

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)

Time Frame | Conditions |
At Impact | - Severe head injury - Aortic transections |
Within 1 Hour | Airway: - Obstruction - Tracheobronchial injury |
ã…¤ | Breathing: - Open pneumothorax - Tension pneumothorax (?m/c cause of death following trauma) |
ã…¤ | 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)

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):Â
- Address life-threatening injuries (ABCD).
- CXR, Pelvic Xray, eFAST
- Secondary Survey (2° Survey):Â
- 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:Â C-spine X-ray
- SPINE/SHINE
- Spinal midline tenderness
- Provide history
- Injury → extreme
- Neurological deficit
- Ethanol
Airway (A)


- Secure Airway if:
- Unable to speak
- GCS ≤ 8
- Coma
- Severe maxillofacial injury

Head Tilt Chin lift
- Emergency Airway:
- Needle Cricothyroidotomy:
- Through cricothyroid membrane.
- Provides 20-30 min of oxygenation.
- Contraindicated:Â
- Patients < 12 years.
- Definitive Airway:Â
- Tracheostomy (if needle fails).
Permanent tracheostomy


Indications of Tracheostomy
Mnemonic: Occupy Most Seats in Medical Association
- O → Obstruction: Above T₂–T₄
- 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.

- 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

- 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:Â
- Contraindicated in head injury
(due to anterior cranial fossa fracture risk).
- Laryngeal mask airway (LMA) is easier to insert.

Breathing (B)
- Assessment:Â Chest examination (AP)
- Adjuncts:Â Pulse oximetry, Chest X-ray (AP), eFAST scan.
- Intervention:Â Chest tubes (if indicated).
Circulation (C)
- IV Access:
- Minimum 2 large-bore 18 G (green) or larger IV cannulas.
- Fluid Administration:Â 1 liter IV fluids (ATLS 10th ed.).
- Alternative IV Access:
- Emergency:Â
- Intraosseous (just below tibial tuberosity),
- Venous cutdown (great saphenous vein).
- Definitive:Â
- Central line (IJV most common).


- Tranexamic Acid (CRASH-2 trial):
- Indication:Â
- SBP < 90 mmHg
- HR > 110 bpm.
- Dose:Â
- Give within 3 hrs of injury
- 1g IV over 10 min
- - then 1g over 8 hrs.
- Effect:Â Decreases mortality.
- Pelvic Binder:
- Use:Â Trauma with hypovolemic shock.
- Mechanism:Â 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):

- Head Injury (Based on GCS)
- Mild: 13–15
- Moderate: 9–12
- Severe: ≤ 8
- GCS-P Score:Â
- 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:Â Examine patient's back.
- Personnel:Â 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
- CT Brain
- Detect intracranial hemorrhage
- Skull fractures
- CT Spine
- Evaluate spinal injuries (common in high-energy trauma)
- 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):Â
- 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):Â
- 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:Â
- Within 36 hours (after resuscitation)
- If patient deteriorates:Â
- Convert to DCS approach
DCS (Abbreviated Laparotomy)
- In terrible triad of trauma
- Mnemonic: CAT (Coagulopathy, Acidosis, Temp ↓↓) makes Terrible trauma
- Hypothermia (< 34°C)
- Acidosis (pH < 7.2)
- 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 |


- Stages of DCS:
- Patient selection
- Control of hemorrhage and contamination
- ICU care
- Definitive Surgery
- Abdominal closure
Abdominal Compartment Syndrome (ACS)
- Intra-abdominal Pressure (IAP):Â
- Measured by bladder pressure
- Causes:
- Bowel obstruction
- Massive burns
- Massive ascites
- Definitions:
- Intra-abdominal Hypertension (IAH):
- Sustained/repeated pathological ↑↑ in IAP > 12 mmHg
- ACS:Â
- 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:Â 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

Types of Blasts:
- Airblast

- Immersion Blast/Underwater blast
- Most significant: GIT injury
- 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


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
- Extensor plantar → Babinsky
- 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:
- 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