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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

  1. 01Start

    Extremity Trauma

    Penetrating or blunt injury with vascular concern

  2. 02Warning

    Immediate Hemorrhage Control

    Control active bleeding first

    • Direct pressure
    • Tourniquet for uncontrolled arterial bleeding
    • Wound packing if junctional
    • Document time of tourniquet application
  3. 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)
  4. 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)
  5. 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
  6. Prolonged ischemia
  7. 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
  8. 07Outcome

    Limb Perfusion Restored

    Monitor for complications

    • Monitor pulses post-repair
    • Watch for compartment syndrome
    • Anticoagulation per surgeon
    • Surveillance for graft patency
  9. Path rejoins step 07Shared downstream outcome
  10. 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
  11. 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
  12. ≥0.9
  13. 10Action

    ABI ≥0.9: Observation

    Serial pulse exams

    • Serial vascular exams q4-6h
    • Monitor for delayed presentation
    • Consider imaging if high suspicion persists
  14. Path rejoins step 07Shared downstream outcome
  15. <0.9
  16. 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
  17. 12Decision

    CTA Results

    Injury identified?

  18. Injury - ischemic
  19. Path rejoins step 05Shared downstream outcome
  20. Injury - stable
  21. 13Action

    Endovascular Option

    For select injuries

    • Pseudoaneurysm
    • Arteriovenous fistula
    • Some intimal injuries
    • Covered stent or embolization
    • Not for actively ischemic limb
  22. Path rejoins step 07Shared downstream outcome
  23. Negative
  24. Path rejoins step 10Shared downstream outcome
  25. No - low suspicion
  26. Path rejoins step 10Shared downstream outcome

Guideline Source

WTA Critical Decisions: Extremity Vascular Injury 2024

DOI: 10.1097/TA.0000000000004166View Guideline

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

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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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