POLYTRAUMA MANAGEMENT - EDIC Part 2 Viva-Ready Note
Sources: ATLS 11th Edition (2025) | European Guideline on Major Bleeding & Coagulopathy 6th Ed (Rossaint et al., Crit Care 2023, PMID 36859355) | NICE Guideline CG174 (Major Trauma, 2016, updated 2022) | Brain Trauma Foundation (BTF) Guidelines 4th Ed | Bailey & Love Surgery 28th Ed
WHICH GUIDELINE TO USE IN EDIC PART 2?
Use European Guideline (Rossaint 2023, 6th Ed) as your primary reference for coagulopathy and haemorrhage management - it is pan-European, directly relevant to European ICU practice and is what EDIC examiners expect. Use ATLS 11 (2025) for the primary survey framework (xABCDE) and resuscitation principles. Cite NICE CG174 for UK-specific decisions (e.g. whole-body CT timing, TXA in prehospital). BTF 4th Ed is the go-to for TBI targets.
SECTION 1 - OVERVIEW AND KEY DEFINITIONS
Polytrauma = Abbreviated Injury Scale (AIS) >=3 in at least two body regions, often with associated systemic inflammatory response. The Berlin Definition adds physiological derangement: BE ≤-3 mmol/L OR SBP ≤90 mmHg OR GCS ≤8 OR coagulopathy (INR >1.4).
The Lethal Triad = Hypothermia + Acidosis + Coagulopathy. Avoid all three.
Preventable trauma deaths occur from:
- Uncontrolled haemorrhage (39% of trauma deaths) - most preventable
- Airway obstruction
- Tension pneumothorax
SECTION 2 - PRIMARY SURVEY: xABCDE
ATLS 11 KEY CHANGE: The mnemonic is now xABCDE - the "x" stands for exsanguinating haemorrhage control FIRST, before airway. [ATLS 11, 2025 - Level evidence-based expert consensus]
x - Exsanguinating Haemorrhage Control
- Act first on any life-threatening external bleeding before moving to A
- Tourniquet for limb haemorrhage (apply within 2-3 minutes)
- Wound packing + direct pressure for junctional/truncal bleeding
- Pelvic binder for suspected pelvic fracture with haemodynamic instability
- Think: "STOP THE BLEED" before everything
[ATLS 11; NICE CG174 - Grade A]
A - Airway with C-spine Protection
- Assume C-spine injury in any significant mechanism until cleared
- Look: agitation, stridor, use of accessory muscles, cyanosis
- Act: chin lift/jaw thrust, suction, airway adjunct (OPA/NPA)
- Definitive airway (RSI + ETT) if: GCS ≤8, airway compromise, respiratory failure, haemodynamic instability with thoracic injury
RSI drugs in trauma:
- Ketamine 1-2 mg/kg IV (preferred - maintains BP, bronchodilates)
- Rocuronium 1.2 mg/kg IV (use with sugammadex available)
- Avoid etomidate (adrenal suppression) if prolonged ICU stay anticipated
- C-spine precaution: in-line manual stabilisation during laryngoscopy
Q: When do you intubate a trauma patient?
A: GCS ≤8, inability to protect airway, RR <10 or >29, SpO2 <90% despite O2, anticipated deterioration (burns to face/airway, expanding neck haematoma), combative patient requiring imaging.
[ATLS 11; Morgan & Mikhail 7e]
B - Breathing and Ventilation
Life-threatening chest injuries - treat immediately ("ATOM FC"):
| Injury | Signs | Immediate Rx |
|---|
| Airway obstruction | Stridor, no air entry | Clear/intubate |
| Tension pneumothorax | No air entry, tracheal deviation, JVD, hypotension | Needle decompression: 2nd ICS MCL or 4th/5th ICS AAL; then chest drain |
| Open pneumothorax | Sucking chest wound | 3-sided occlusive dressing, then chest drain |
| Massive haemothorax | Dullness, hypotension, >1500ml blood | Large-bore chest drain (28-32Fr) |
| Flail chest | Paradoxical movement, hypoxia | Analgesia, PPV if SpO2 <90% |
| Cardiac tamponade | Beck's triad (hypotension, JVD, muffled heart sounds) | ED thoracotomy or pericardiocentesis |
ATLS 11 UPDATE: Needle decompression preferred site is 4th/5th intercostal space, anterior axillary line (4/5 ICS AAL) - higher success than 2nd ICS MCL in muscular/obese patients. Both sites remain acceptable. [ATLS 11]
SpO2 target in trauma: 94-98% (avoid hyperoxia in TBI). [NICE CG174; BTF 4th Ed]
Q: What is the landmark for needle thoracostomy in ATLS 11?
A: ATLS 11 now recommends 4th/5th ICS AAL as primary site due to better success rates. The 2nd ICS MCL is still acceptable. After needle decompression always insert a chest drain.
C - Circulation with Haemorrhage Control
Assess: HR, BP, CRT, skin colour/temperature, level of consciousness, urine output
ATLS Shock Classification (simplified for viva):
| Class | Blood Loss | HR | SBP | Mental State |
|---|
| I | <750ml (<15%) | <100 | Normal | Anxious |
| II | 750-1500ml (15-30%) | 100-120 | Normal | Mildly anxious |
| III | 1500-2000ml (30-40%) | >120 | Decreased | Confused |
| IV | >2000ml (>40%) | >140 | Very low | Lethargic/unconscious |
Access: Two large-bore peripheral IVs (minimum 16G) OR intraosseous (IO) if IV access fails.
Blood sampling: Cross-match, FBC, coagulation (PT, APTT, fibrinogen), U&E, glucose, LFTs, lactate, ABG, blood cultures if indicated.
[ATLS 11]
D - Disability (Neurological Assessment)
- GCS (full scoring)
- Pupils: size, reactivity, asymmetry (unilateral fixed dilated = transtentorial herniation)
- AVPU (rapid bedside)
- Blood glucose - always check (hypoglycaemia mimics brain injury)
- Drugs/alcohol: consider as confounding
Q: A trauma patient has GCS of 9, unequal pupils. What do you do?
A: Immediate CT head; if scan delayed and clinical herniation suspected, give 20% mannitol 0.25-1g/kg IV or 3% NaCl and ensure SBP >90mmHg + SpO2 >90%; neurosurgical referral urgently.
[BTF 4th Ed, Level IIA]
E - Exposure and Environmental Control
- Full exposure: log roll, check back, axillae, perineum, all skin folds
- Prevent hypothermia: warm blankets, warm IV fluids, warm environment
- Target temperature: >35°C actively; treat if <35°C with active warming
- Hypothermia (<35°C) worsens coagulopathy significantly
[NICE CG174, Grade A; European Guideline 6th Ed, Grade 1C]
SECTION 3 - SIMULTANEOUS RESUSCITATION (Run in parallel with primary survey)
3.1 - Damage Control Resuscitation (DCR)
DCR is the overarching resuscitation strategy in actively bleeding trauma patients. It has three pillars:
1. Permissive Hypotension (hypotensive resuscitation)
- Target SBP 80-90 mmHg (MAP ~50 mmHg) until surgical haemostasis achieved
- Exception: avoid in TBI (see below) - maintain SBP ≥110 mmHg if TBI coexists
- Time-limited: only until haemorrhage controlled; do not maintain for >60-90 minutes
- Avoid large crystalloid boluses - causes haemodilution, hypothermia, ARDS, abdominal compartment syndrome
[European Guideline 6th Ed - Grade 1C; ATLS 11; Bailey & Love 28e]
2. Haemostatic Resuscitation (Blood product replacement)
- Use blood products NOT crystalloid as primary resuscitation fluid
- Target ratio: 1 pRBC : 1 FFP : 1 platelets (1:1:1)
- Fresh whole blood (FWB) is superior if available (1 unit replaces all three) [European Guideline 6th Ed, Grade 1B]
- Small volume crystalloid only as a bridge until blood products available
- PROMMTT & PROPPR trials showed reduced 24h mortality with 1:1:1 ratio
[European Guideline 6th Ed - Grade 1A; Sabiston Surgery; PROPPR Trial JAMA 2015]
3. Damage Control Surgery (DCS) / Intervention
- Minimum surgery to stop bleeding and contamination
- Temporary vessel ligation, damage control packing, bowel stapling without anastomosis
- ICU resuscitation then planned re-look at 24-48h ("second look")
- Decision to go to DCS early - do not delay waiting for labs
[Bailey & Love 28e; ATLS 11]
3.2 - Tranexamic Acid (TXA)
This is the single most important drug in trauma haemorrhage. Know the dose, timing, and evidence perfectly.
- Drug: TXA - antifibrinolytic (inhibits plasminogen activation)
- Who gets it: all trauma patients with suspected significant haemorrhage OR SBP <110 mmHg OR HR >110 bpm
- Dose: 1g IV over 10 minutes LOADING, then 1g IV over 8 hours (maintenance)
- Timing: as early as possible; ideally in prehospital setting; MUST be given within 3 hours of injury - after 3 hours it may increase mortality
- In UK: given by paramedics prehospital - this is standard of care
- Do NOT wait for viscoelastic results before giving TXA
Evidence: CRASH-2 Trial (Lancet 2010, n=20,000) - TXA reduced all-cause mortality (RR 0.91) and haemorrhagic death (RR 0.85), NNT=67 [Level 1A]
[European Guideline 6th Ed Recommendation 23 - Grade 1A; NICE CG174; Bailey & Love 28e; CRASH-2 Lancet 2010]
Q: When should TXA NOT be given?
A: After 3 hours of injury (increases mortality). Relative caution in isolated TBI (MRC CRASH-3 - benefit in mild-moderate TBI if SBP <90mmHg, but not in severe TBI with pupils already blown). Avoid if known thromboembolic disease (relative contraindication).
3.3 - Fibrinogen Replacement
- Traumatic coagulopathy is characterised by LOW fibrinogen (often the first factor to fall)
- Give fibrinogen concentrate (4-8g IV) or cryoprecipitate if fibrinogen <1.5 g/L OR viscoelastic evidence of functional fibrinogen deficiency
- Target fibrinogen >1.5 g/L (some guidelines suggest >2.0 g/L in ongoing haemorrhage)
[European Guideline 6th Ed - Grade 1A]
3.4 - Massive Transfusion Protocol (MTP)
Trigger MTP when:
-
10 units pRBC in 24h, OR
-
4 units pRBC in 1 hour, OR
- Clinical assessment: haemodynamic instability + ongoing haemorrhage
MTP includes:
- 1:1:1 ratio pRBC:FFP:Platelets
- TXA within 3 hours
- Fibrinogen concentrate / cryoprecipitate
- Calcium replacement (ionised Ca falls with citrated blood products - give 10ml 10% CaCl2 every 4 units pRBC)
- Avoid hypothermia, acidosis (correct with bicarbonate if pH <7.1)
- Point-of-care viscoelastic testing (VHA - ROTEM/TEG) to guide replacement
Target:
- Hb >70-80 g/L (80-100 in TBI)
- Platelets >50 x 10^9/L (>100 in TBI or multiple injuries)
- PT/APTT <1.5 x normal
- Fibrinogen >1.5 g/L
- Ionised Ca >1.1 mmol/L
[European Guideline 6th Ed; NICE CG174; Bailey & Love 28e]
Q: What is the role of prothrombin complex concentrate (PCC) in trauma?
A: 4-factor PCC (25-50 IU/kg) is used for: rapid reversal of warfarin/DOAC anticoagulation, or as adjunct in trauma coagulopathy if FFP not available or patient in fluid overload. European Guideline Grade 1C recommendation.
SECTION 4 - INVESTIGATIONS AND IMAGING
4.1 - Mandatory Investigations
Bedside (immediate):
- ECG (arrhythmia in cardiac contusion; RBBB in tension)
- ABG (pH, lactate, base excess, Hb, ionised Ca, glucose)
- FAST scan (Focused Assessment with Sonography in Trauma): 4 windows - hepatorenal, splenorenal, pericardium, pelvic
- CXR (portable)
- Pelvic X-ray (portable)
Lab:
- FBC, U&E, LFTs, coagulation screen, fibrinogen, fibrin degradation products
- Troponin (cardiac contusion)
- ROTEM or TEG (viscoelastic haemostatic assay - preferred over standard coagulation in ongoing haemorrhage)
- Blood ethanol level, urine pregnancy test (females of reproductive age)
4.2 - Whole-Body CT (WBCT)
- Gold standard investigation for haemodynamically stable polytrauma
- Head to pelvis with IV contrast ("pan-scan")
- Criteria: suspected multiple injuries OR deranged physiology
- Do NOT perform WBCT based on mechanism alone
- Do NOT delay WBCT if haemodynamically stable - scan should be done within the primary survey/resuscitation phase
- Time target: CT report within 30-60 minutes of arrival
- A "hot report" (provisional, within minutes) identifies immediate life threats
[NICE CG174 - Grade B; Bailey & Love 28e]
Q: When should you NOT send a trauma patient to CT?
A: When haemodynamically unstable despite resuscitation - these patients need to go to theatre (or IR/angio suite) for haemorrhage control. CT delays definitive intervention. FAST scan + CXR/pelvic XR are the bedside alternatives.
SECTION 5 - THORACIC TRAUMA
5.1 - Blunt Thoracic Trauma
Common injuries:
- Rib fractures (pain, splinting, pneumonia risk): analgesia (regional > systemic); >3 consecutive rib fractures = flail chest
- Flail chest: PPV if SpO2 <90%; epidural or paravertebral block for pain
- Pneumothorax: simple - aspiration/chest drain; tension - immediate needle then drain
- Haemothorax: chest drain 28-32Fr; >1500ml initial OR >200ml/h for 2-4h = thoracotomy
- Pulmonary contusion: ARDS risk; lung-protective ventilation (TV 6ml/kg IBW, PEEP 5-8, plateau P <30cmH2O)
- Aortic injury (traumatic aortic dissection): CT angiography; TEVAR (endovascular) preferred over open surgery; control HR + BP (target HR <80, SBP 100-120)
5.2 - Penetrating Thoracic Trauma
- All penetrating chest wounds: chest drain + 3-sided occlusive dressing for open wounds
- Cardiac tamponade: Beck's triad (hypotension, JVD, muffled heart sounds); confirm with FAST (pericardial fluid); immediate pericardiocentesis or ED thoracotomy
- Penetrating vs blunt: penetrating injuries more commonly involve single anatomical structure; blunt has more energy transfer causing multiple injuries
Indications for Emergency Department Thoracotomy (EDT):
- Penetrating chest trauma with witnessed cardiac arrest OR loss of vital signs within 15 minutes
- NOT indicated in blunt trauma with >10 min CPR (some centres extend to <15 min penetrating)
- Goal: release tamponade, cross-clamp aorta, internal cardiac massage
[Bailey & Love 28e; ATLS 11]
Q: What are the indications for immediate thoracotomy in trauma?
A: (1) Chest drain output >1500ml immediately, or (2) >200ml/h for 2-4 consecutive hours, (3) Cardiac tamponade not responding to pericardiocentesis, (4) Aortic/great vessel injury requiring repair, (5) Tracheobronchial injury. EDT for penetrating arrest with <15 min CPR.
SECTION 6 - TRAUMATIC BRAIN INJURY (TBI)
6.1 - Classification
| Severity | GCS | CT finding |
|---|
| Mild | 13-15 | May be normal |
| Moderate | 9-12 | Usually abnormal |
| Severe | ≤8 | Abnormal |
6.2 - Primary vs Secondary Injury
- Primary: direct mechanical damage at time of impact - not reversible
- Secondary: hypoxia, hypotension, hyperthermia, hyperglycaemia, seizures, raised ICP - ALL PREVENTABLE
6.3 - Key Targets in Severe TBI (BTF 4th Ed)
| Parameter | Target | Evidence Level |
|---|
| SBP | ≥110 mmHg (age 50-69) or ≥100 mmHg (age 15-49, >70) | Level IIB |
| SpO2 | >90%; PaO2 >60mmHg | Level IIB |
| ICP | <20 mmHg | Level IIB |
| CPP | 60-70 mmHg | Level IIB |
| Temperature | Normothermia (36-37°C) | Level IIA |
| Blood glucose | 6-10 mmol/L | expert consensus |
| Hb | >70 g/L (some suggest >80-100) | expert consensus |
CRITICAL: Never allow SBP <90 mmHg in TBI - single episode doubles mortality.
Never: hyperventilate routinely (keep PaCO2 35-40mmHg); hyperventilate ONLY for impending herniation as bridge (PaCO2 30-35 temporarily). [BTF 4th Ed, Level IIB]
6.4 - ICP Management Stepwise
Tier 1 (all patients):
- Head-up 30°
- Sedation + analgesia (propofol/morphine preferred)
- Normothermia
- Normovolaemia
- Normocapnia (PaCO2 4.5-5.0 kPa)
- Osmotherapy: 20% mannitol 0.25-1g/kg IV 4-6 hourly (target serum osmolality <320 mOsm/kg) OR hypertonic saline 3% NaCl 250ml over 30 min
Tier 2 (if ICP persists >20):
- Sedation bolus (propofol)
- Neuromuscular blockade
- Mild hyperventilation (PaCO2 32-35 mmHg)
- Repeat CT to exclude surgical lesion
Tier 3 (refractory):
- Barbiturate coma (thiopentone)
- Decompressive craniectomy
- Hypothermia (controversial - EUROTHERM3235 trial showed harm)
[BTF 4th Ed; NICE CG176]
6.5 - Anticoagulation Reversal in TBI
- Warfarin: 4-factor PCC (25-50 IU/kg) + Vitamin K 10mg IV
- DOACs: Idarucizumab (dabigatran reversal, 5g IV); Andexanet alfa (Xa inhibitors, 400-800mg IV)
- Antiplatelet agents: platelet transfusion (controversial, not routinely recommended)
[ATLS 11; NICE CG176]
Q: Why is permissive hypotension contraindicated in TBI?
A: CPP = MAP - ICP. If ICP is already raised, any drop in MAP (BP) will critically reduce CPP and worsen secondary brain injury. Target SBP ≥110 mmHg overrides permissive hypotension protocol.
Q: A patient has polytrauma with severe TBI and haemorrhagic shock. What BP do you target?
A: This is the classic conflict. Prioritise TBI - maintain SBP ≥110 mmHg. Use blood products to achieve this. Do not use permissive hypotension. The European Guideline (Rossaint 2023) and BTF 4th Ed both recommend MAP ≥80 mmHg (SBP ≥110) when TBI coexists.
SECTION 7 - SPINAL TRAUMA AND SPINAL CORD INJURY (SCI)
7.1 - ATLS 11 Change: Spinal Motion Restriction (SMR)
- Old ATLS: "immobilise the whole spine" routinely
- New ATLS 11: Selective spinal motion restriction (SMR) - only restrict if:
- Abnormal neurology
- Midline spinal tenderness
- High-risk mechanism + unreliable examination (intoxicated, distracting injury, altered consciousness)
- Rigid cervical collars carry risks: raised ICP, pressure injuries, difficulty with airway
- Clearance tools: NEXUS criteria OR Canadian C-Spine Rule for cervical spine clearance in awake, alert patients
[ATLS 11; NICE CG176]
7.2 - Imaging
- CT (not plain XR) is now the standard for suspected spinal injury in major trauma
- MRI for: neurological deficit without bony injury on CT, ligamentous injury assessment, cord oedema
7.3 - Neurogenic vs Haemorrhagic Shock
| Feature | Neurogenic Shock | Haemorrhagic Shock |
|---|
| BP | Low | Low |
| HR | Low or normal (bradycardia) | High (tachycardia) |
| Skin | Warm, dry | Cold, clammy |
| Mechanism | Loss of sympathetic tone (T1-T4) | Volume depletion |
Q: How do you distinguish neurogenic from haemorrhagic shock?
A: Neurogenic shock = bradycardia + hypotension + warm skin (vasodilated). Haemorrhagic shock = tachycardia + hypotension + cold clammy skin. Always exclude haemorrhage FIRST before attributing shock to spinal injury.
7.4 - Management of Acute SCI
BP target: MAP 85-90 mmHg for 7 days post-SCI (to improve spinal cord perfusion)
Steroids (methylprednisolone):
- Highly controversial - no longer routinely recommended
- NASCIS II/III protocols (methylprednisolone 30mg/kg bolus then 5.4mg/kg/h for 23-47h) showed marginal benefit but significant harm (infection, GI bleed, sepsis)
- Current consensus: NOT standard of care; may be considered in select blunt SCI within 8h as a clinician option, not a protocol requirement [PMID 40073287, German CPG 2025; Tintinalli]
- Penetrating SCI: methylprednisolone is CONTRAINDICATED (increases sepsis)
Other management: surgical decompression within 24h (some centres within 8h), VTE prophylaxis (LMWH + compression stockings), pressure care, bladder management.
SECTION 8 - ABDOMINAL TRAUMA
8.1 - Solid Organ Trauma (Liver, Spleen, Kidney)
Investigation: CT with IV contrast (best for grading and planning). FAST scan at bedside.
Management strategy:
| Organ | Haemodynamically Stable | Haemodynamically Unstable |
|---|
| Spleen | Non-operative (NOM) ± angioembolisation | Emergency splenectomy |
| Liver | NOM ± angioembolisation (Grades I-III) | Damage control packing + angio |
| Kidney | NOM (Grades I-IV usually) | Selective embolisation; nephrectomy rarely |
- NOM is now preferred for liver/spleen grades I-III in stable patients (avoid splenectomy risks: OPSI - overwhelming post-splenectomy infection)
- Post-splenectomy vaccines: Pneumococcus, Meningococcus, HiB (give before discharge or within 2 weeks); penicillin prophylaxis lifelong
8.2 - Hollow Viscus Trauma
- Small bowel most commonly injured in blunt deceleration trauma (seat belt sign!)
- Presentation can be delayed 12-24 hours
- CT: free air/fluid, bowel wall thickening, mesenteric fat stranding
- Management: surgery (bowel resection ± anastomosis vs stoma if contamination/unstable)
8.3 - Blunt vs Penetrating Abdominal Trauma
| Feature | Blunt | Penetrating |
|---|
| Mechanism | RTA, falls, assaults | Stab, gunshot |
| Organs at risk | Solid organs, mesentery | All structures |
| Assessment | FAST + CT (if stable) | Local wound exploration OR FAST OR DPL |
| Indication for laparotomy | Haemodynamic instability + positive FAST | Any gunshot violating peritoneum; stab with peritoneal signs |
Penetrating trauma rule: Gunshot wounds (GSW) to abdomen = mandatory laparotomy in most centres. Stab wounds = selective management (stable, no evisceration, no peritonism can be observed).
SECTION 9 - PELVIC TRAUMA
Major pelvic fractures cause massive haemorrhage - venous and arterial (internal iliac). Up to 3-4 litres of blood can accumulate in pelvic space.
9.1 - Recognition
- Signs: instability on spring test, leg shortening/rotation, perineal/scrotal haematoma, blood at urethral meatus (urethral injury - do NOT catheterise; perform urethrogram first), high-riding prostate
- Key X-ray finding: open-book (AP compression), vertical shear, lateral compression fractures
9.2 - Immediate Management (Haemostasis Priority)
Step 1: Pelvic binder (applied at greater trochanters, NOT iliac crests) - closes open-book fracture, reduces pelvic volume and venous haemorrhage
Step 2: If haemodynamically unstable despite binder:
- REBOA (Resuscitative Endovascular Balloon Occlusion of the Aorta) Zone III - emerging UK practice for pelvic haemorrhage (placed in aorta at Zone III = infrarenal)
- Pre-peritoneal packing (PPP) + external fixation - surgical option
- Angioembolisation - for ongoing arterial haemorrhage after PPP; performed in IR suite
Step 3: Definitive fixation (external then internal) once stable.
[ATLS 11; European Guideline 6th Ed; NICE CG174]
Q: A patient has an open-book pelvic fracture and SBP of 70 mmHg despite resuscitation. What do you do?
A: (1) Pelvic binder on if not done; (2) Activate MTP; (3) Consider REBOA Zone III or take to pre-peritoneal packing; (4) Angioembolisation for arterial bleeding; (5) Do NOT take to CT if haemodynamically unstable.
SECTION 10 - MAJOR LIMB TRAUMA
10.1 - Limb Haemorrhage
- Tourniquet (CAT or SOFTT-W) for proximal limb haemorrhage
- Time of application must be documented
- Tourniquet time: safe for ~2 hours; fasciotomy risk beyond 6 hours ischaemia
- Junctional haemorrhage (groin, axilla, neck): wound packing with haemostatic gauze (e.g. QuikClot, Celox) + sustained direct pressure
10.2 - Compartment Syndrome
- Must be actively sought in all crush injuries, prolonged tourniquet, tibial/forearm fractures
- 5 Ps: Pain (especially on passive stretch), Pressure (tense compartment), Paralysis, Paraesthesia, Pallor
- Compartment pressure: normal <10 mmHg; threshold for fasciotomy if >30 mmHg OR within 30 mmHg of diastolic BP (delta P ≤30 mmHg)
- Fasciotomy: 4-compartment fasciotomy of lower leg; cannot wait for MRI
10.3 - Vascular Injury in Limb Trauma
- Hard signs (immediate surgery): absent distal pulse, expanding haematoma, bruit/thrill, active haemorrhage, cold/white limb
- Soft signs (imaging first): reduced pulse, nerve deficit, proximity injury - CT angiography first
10.4 - Fracture Management in Polytrauma
- Damage control orthopaedics: temporary external fixation first; definitive fixation (IM nail, ORIF) delayed until patient physiologically optimised (pH >7.35, Temp >36°C, lactate <4 mmol/L)
- Early total care (immediate IM nailing) ONLY in physiologically stable patients
SECTION 11 - SECONDARY SURVEY
Once life-threatening injuries addressed, systematic head-to-toe examination:
- Head: lacerations, haematomas, eye injury, facial fractures
- Neck: JVD, tracheal deviation, crepitus, haematoma
- Chest: full inspection/auscultation
- Abdomen: tenderness, rigidity, rebound, bowel sounds
- Pelvis: gentle spring test ONCE
- Perineum, rectum, vagina (if indicated)
- Extremities: deformity, neurovascular examination
- Neurological: GCS, reflexes, sensation, power
- History: AMPLE - Allergies, Medications, Past history, Last meal, Events/mechanism
SECTION 12 - TRAUMA COAGULOPATHY
Mechanisms
- Acute Traumatic Coagulopathy (ATC): occurs within minutes of injury; driven by tissue hypoperfusion + activated Protein C pathway (hyperfibrinolysis, anticoagulation); NOT caused by dilution
- Iatrogenic coagulopathy: dilution from crystalloids, hypothermia, acidosis
- Disseminated Intravascular Coagulation (DIC): consumption + fibrinolysis in severe injury
Monitoring
- Standard labs: PT, APTT, fibrinogen, platelets
- Viscoelastic haemostatic assays (VHA): ROTEM or TEG - gold standard for guiding product replacement; faster than standard labs; provides clot formation, strength, fibrinolysis data
[European Guideline 6th Ed - Grade 1B recommendation for VHA use]
Treatment of Trauma Coagulopathy
| Problem | Treatment | Target |
|---|
| Fibrinolysis | TXA ≤3h (Grade 1A) | - |
| Low fibrinogen | Fibrinogen conc. 4-8g or Cryo | Fibrinogen >1.5 g/L |
| PT/APTT prolonged | FFP 15ml/kg OR 4F-PCC | PT/APTT <1.5x normal |
| Platelets low | Platelet transfusion | Plt >50 (>100 if TBI) |
| Vitamin K deficiency/warfarin | 4F-PCC + Vit K 10mg IV | INR <1.5 |
| Hypocalcaemia | CaCl2 10% 10ml IV | iCa >1.1 mmol/L |
| Acidosis | Correct pH >7.2 | pH >7.35 |
| Hypothermia | Active warming | Temp >36°C |
SECTION 13 - PENETRATING vs BLUNT TRAUMA: KEY DIFFERENCES
| Feature | Blunt | Penetrating |
|---|
| Energy transfer | Distributed over large area | Concentrated along tract |
| Hidden injuries | Common (spleen, liver, retroperitoneum) | Usually along wound tract |
| Hollow viscus | Less likely acutely | Common in GSW |
| Vascular injury | Stretching/intimal tear | Direct laceration |
| Laparotomy threshold | Haemodynamic instability + FAST + signs | GSW = low threshold; stab = selective |
| C-spine concern | High | Lower (unless direct neck/head wound) |
| TBI | Common in blunt head injury | Penetrating brain injury (gunshot): much higher mortality |
Penetrating cardiac injury: Subxiphoid pericardial window or ED thoracotomy for tamponade. Stab wounds have better survival than GSW to heart.
SECTION 14 - TIME-CRITICAL ACTIONS AND TIME LIMITS SUMMARY
| Intervention | Time Limit | Source |
|---|
| TXA first dose | Within 3 hours of injury (ASAP - within 1st hour ideal) | European GL 6th Ed Grade 1A |
| ED thoracotomy | Within 15 min of witnessed cardiac arrest (penetrating) | ATLS 11 |
| WBCT reporting ("hot") | Within minutes of scan | NICE CG174 |
| WBCT full report | 30-60 min of arrival | NICE CG174 |
| Neurosurgery for EDH | Within 4 hours (target <2h from diagnosis) | BTF 4th Ed / NICE CG176 |
| SCI decompression | Within 24 hours (aim <8-12h in some centres) | Practice consensus |
| Tourniquet removal | Consider at 2h; maximum ~6h with close monitoring | ATLS 11 |
| Damage control surgery completion (ICU) | 24-48h before re-look | Bailey & Love 28e |
| Post-splenectomy vaccines | Before discharge or within 2 weeks | PHE guidance |
SECTION 15 - QUICK VIVA Q&A
Q1: What is the first step in ATLS 11?
A: Control of exsanguinating external haemorrhage (the "x" in xABCDE) - tourniquet, packing, pelvic binder.
Q2: Define polytrauma.
A: AIS ≥3 in two or more body regions. Berlin Definition adds: BE ≤-3, OR SBP ≤90, OR GCS ≤8, OR INR >1.4.
Q3: What is the TXA dose and deadline?
A: 1g IV over 10 min, then 1g IV over 8 hours. Must be given within 3 hours of injury. Grade 1A (European Guideline 6th Ed).
Q4: What is the MTP ratio?
A: 1:1:1 (pRBC:FFP:Platelets). Whole blood preferred if available. PROPPR trial evidence.
Q5: What are the three elements of DCR?
A: (1) Permissive hypotension (SBP 80-90, time-limited), (2) Haemostatic resuscitation (blood products 1:1:1), (3) Damage control surgery.
Q6: BP target in TBI?
A: SBP ≥110 mmHg (patients 50-69 years); SBP ≥100 for 15-49 and >70 years. BTF 4th Ed Level IIB.
Q7: When is permissive hypotension contraindicated?
A: In TBI, suspected spinal cord injury, elderly (>65), and in cardiac failure / coronary artery disease.
Q8: How do you manage a tension pneumothorax?
A: Immediate needle decompression (ATLS 11: 4th/5th ICS AAL preferred or 2nd ICS MCL), followed by chest drain.
Q9: What is the "lethal triad"?
A: Hypothermia + Acidosis + Coagulopathy. Each worsens the others; target correction of all three.
Q10: What are hard signs of vascular injury in limb trauma?
A: Absent distal pulse, expanding haematoma, bruit/thrill, active haemorrhage, cold ischaemic limb. These require immediate surgical exploration.
Q11: Steroids in SCI - yes or no?
A: No - not standard of care. NASCIS II/III showed marginal benefit with significant harm. German CPG 2025 recommends against routine use. Contraindicated in penetrating SCI. [PMID 40073287]
Q12: What is REBOA and when is it used?
A: Resuscitative Endovascular Balloon Occlusion of the Aorta. Zone III (infrarenal) for pelvic haemorrhage; Zone I (descending thoracic) for abdominal haemorrhage. Used as bridge to haemorrhage control in haemodynamically unstable patients. Emerging UK practice.
Q13: What is the Glasgow Coma Scale maximum score?
A: 15 (E4V5M6). Severe TBI = GCS ≤8. Intubate if GCS ≤8.
Q14: What is ATC and when does it occur?
A: Acute Traumatic Coagulopathy - occurs within minutes of injury due to tissue hypoperfusion activating Protein C, causing anticoagulation and hyperfibrinolysis. NOT dilutional initially. Seen in ~25-34% of trauma patients on arrival.
Q15: What investigations guide haemostatic resuscitation in real time?
A: Viscoelastic haemostatic assays (ROTEM or TEG). Faster than standard labs; shows clot formation, strength, lysis. European Guideline Grade 1B.
SECTION 16 - GUIDELINE HIERARCHY FOR EDIC PART 2
| Guideline | What it covers | When to cite |
|---|
| ATLS 11 (2025) | Primary survey, xABCDE, initial resuscitation, C-spine | Structure of trauma management |
| European Guideline 6th Ed (Rossaint 2023) | Haemorrhage, coagulopathy, TXA, fibrinogen, blood products, VHA | Haemostatic resuscitation, specific drug/product recommendations |
| NICE CG174 (2016, updated 2022) | UK trauma system, WBCT timing, TXA prehospital, MHP | UK-specific management; WBCT decisions |
| BTF Guidelines 4th Ed (2016) | TBI: ICP targets, CPP, BP, ventilation, osmotherapy | All TBI management targets |
| NICE CG176 (Head Injury 2014) | Head injury, CT criteria, C-spine imaging, rehab | Imaging decisions in TBI |
Examiner tip: In EDIC Part 2, cite the European Guideline 6th Ed with its grade for haemorrhage and coagulopathy questions. Cite ATLS 11 for survey and initial actions. Cite BTF + NICE for TBI targets. This shows command of the European literature expected of a European intensivist.
Sources: ATLS 11th Edition (2025, American College of Surgeons); Rossaint R et al. European Guideline on Management of Major Bleeding and Coagulopathy following Trauma: 6th Edition. Crit Care 2023;27:80 [PMID 36859355]; NICE CG174 Major Trauma (2022); Brain Trauma Foundation Guidelines 4th Ed (2016); CRASH-2 Collaborative, Lancet 2010; PROPPR Trial, JAMA 2015; Bailey & Love's Short Practice of Surgery 28th Ed; Tintinalli's Emergency Medicine.