Extremity Trauma
Penetrating or blunt injury with vascular concern
All Pathways
Trauma SurgeryEmergency
Extremity Vascular Injury (WTA 2024)
Extremity Vascular Injury (WTA 2024): Extremity Trauma → Immediate Hemorrhage Control → Hard Signs Present? → Hard Signs → OR → Operative Repair.
Pathway Overview
13 steps
Algorithm Steps
13 total
01Start 02Warning Immediate Hemorrhage Control
Control active bleeding first
- Direct pressure
- Tourniquet for uncontrolled arterial bleeding
- Wound packing if junctional
- Document time of tourniquet application
03Decision Hard Signs Present?
Definitive evidence of vascular injury
- HARD SIGNS:
- • Pulsatile hemorrhage
- • Expanding or pulsatile hematoma
- • Absent distal pulses
- • Bruit or thrill over injury
- • Signs of distal ischemia (6 Ps)
04Warning Hard Signs → OR
Immediate operative exploration
- No imaging needed - delay is harm
- Notify OR and vascular surgery STAT
- May perform on-table angiogram
- Ischemia time is critical (<6 hours ideal)
05Action Operative Repair
Vascular surgery
- Primary repair if possible
- Interposition graft for significant defects
- Autogenous vein preferred (GSV)
- Consider fasciotomy for ischemia >4-6h
- Assess for compartment syndrome post-repair
06Warning Consider Fasciotomy
Prevent compartment syndrome
- Ischemia >4-6 hours
- Combined arterial + venous injury
- Prolonged hypotension
- Extensive soft tissue injury
- Four-compartment release for leg
07Outcome Limb Perfusion Restored
Monitor for complications
- Monitor pulses post-repair
- Watch for compartment syndrome
- Anticoagulation per surgeon
- Surveillance for graft patency
- Path rejoins step 07Shared downstream outcome
08Decision Soft Signs Present?
Suggestive but not definitive
- SOFT SIGNS:
- • History of arterial bleeding (now controlled)
- • Diminished but palpable pulse
- • Injury proximity to major vessel
- • Non-expanding hematoma
- • Peripheral nerve deficit
- • Unexplained hypotension
09Action Ankle-Brachial Index (ABI)
Non-invasive screening tool
- Doppler systolic pressure at ankle
- Divide by brachial pressure
- ABI ≥0.9: Normal - observation
- ABI <0.9: Abnormal - imaging
- Use API (ankle-pressure index) for lower extremity
10Action ABI ≥0.9: Observation
Serial pulse exams
- Serial vascular exams q4-6h
- Monitor for delayed presentation
- Consider imaging if high suspicion persists
- Path rejoins step 07Shared downstream outcome
11Action CTA of Extremity
For abnormal ABI or soft signs
- CT angiography of affected extremity
- High sensitivity and specificity
- Can identify location and type of injury
- Plan surgical approach
12Decision CTA Results
Injury identified?
- Path rejoins step 05Shared downstream outcome
13Action Endovascular Option
For select injuries
- Pseudoaneurysm
- Arteriovenous fistula
- Some intimal injuries
- Covered stent or embolization
- Not for actively ischemic limb
- Path rejoins step 07Shared downstream outcome
- Path rejoins step 10Shared downstream outcome
- Path rejoins step 10Shared downstream outcome
Guideline Source
WTA Critical Decisions: Extremity Vascular Injury 2024
Clinical Safety Information
Clinical Decision Support — Not a Substitute for Clinical Judgment
Individual patient factors may require deviation from these recommendations.
Known Limitations
- ABI may be falsely elevated in calcified vessels
- Requires vascular surgery availability
- Ischemia time critical - 6 hour golden window
- Concomitant orthopedic injuries complicate management
Applicable Regions
USEUGlobal
Version 1Next review: 2027-01-01
Next steps
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Related Resources
Frequently Asked Questions
What is the Extremity Vascular Injury (WTA 2024)?
The Extremity Vascular Injury (WTA 2024) is a emergency clinical algorithm for Trauma Surgery. It provides a structured decision tree to guide clinical decision-making, based on WTA Critical Decisions: Extremity Vascular Injury 2024.
What guideline is the Extremity Vascular Injury (WTA 2024) based on?
This algorithm is based on WTA Critical Decisions: Extremity Vascular Injury 2024 (DOI: 10.1097/TA.0000000000004166).
What are the limitations of the Extremity Vascular Injury (WTA 2024)?
Known limitations include: ABI may be falsely elevated in calcified vessels; Requires vascular surgery availability; Ischemia time critical - 6 hour golden window; Concomitant orthopedic injuries complicate management. Individual patient factors may require deviation from these recommendations.
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