Vascular Shunting

SOC → SCF-DBI Logic Translation

Purpose

Vascular shunting is a temporary vascular reconstruction procedure performed to restore blood flow across an injured artery or vein when definitive repair is not immediately possible or would jeopardize overall patient survival.

The procedure preserves tissue viability by maintaining perfusion during Damage-Control Surgery, prolonged transport, orthopedic stabilization, or physiologic resuscitation.

SOC Definition

Clinical Objective

Restore temporary blood flow to:

• Prevent limb ischemia
• Preserve organ viability
• Reduce ischemia-reperfusion injury
• Maintain distal tissue survival
• Create a bridge to definitive vascular repair

Common Indications

Damage-Control Surgery

• Hemodynamically unstable patient
• Multiple competing life-threatening injuries

Combined Orthopedic–Vascular Trauma

• Open fractures with arterial injury
• Mangled extremity injuries

Complex Vascular Reconstruction

• Need for staged repair
• Limited operative time

Temporary Organ Perfusion Support

• Mesenteric injuries
• Renal vascular injuries
• Extremity salvage procedures

SCF-DBI Translation

Core Concept

SOC views vascular shunting as:

Temporary restoration of blood flow.

SCF-DBI views vascular shunting as:

Preservation of Tissue Survival Intelligence during Vascular Network Disruption.

The shunt serves as a biologic bridge that maintains:

1. Perfusion continuity
2. Endothelial viability
3. Cellular energy production
4. Tissue regeneration potential
5. Functional recovery capacity

SCF-DBI Vascular Collapse Architecture

Domain 1

Perfusion Network Interruption

SOC Focus

Restore blood flow.

SCF-DBI Focus

Restore Perfusion Continuity Architecture.

Pathophysiologic Cascade

Stage 1

Vascular injury

↓

Stage 2

Flow interruption

↓

Stage 3

Microvascular collapse

↓

Stage 4

Cellular oxygen deprivation

↓

Stage 5

Tissue necrosis

SCF Classification

Regional Perfusion Interruption Syndrome (RPIS)

A localized collapse state resulting from disruption of arterial or venous continuity.

Output

Perfusion Continuity Score (PCS)

Domain 2

Endothelial Viability Assessment

Major SCF-DBI Enhancement

Selected Enhancement:

Add Endothelial Viability Score (EVS)

Traditional shunt assessment focuses on:

• Pulse restoration
• Doppler signals
• Distal perfusion

SCF-DBI additionally evaluates:

Survival of the Endothelial Network

because endothelial dysfunction frequently precedes:

• Thrombosis
• Reperfusion injury
• Microvascular failure
• Failed reconstruction

Endothelial Surveillance Domains

Endothelial Viability States

Output

Endothelial Viability Score (EVS)

Domain 3

Ischemia Tolerance Modeling

Major SCF-DBI Enhancement

Selected Enhancement:

Add Ischemia Tolerance Score (ITS)

SOC typically tracks:

• Ischemia time

SCF-DBI evaluates:

Remaining Tissue Survival Capacity

Different tissues tolerate ischemia differently.

Tissue Ischemia Hierarchy

ITS Assessment Domains

Ischemia Tolerance States

Output

Ischemia Tolerance Score (ITS)

Domain 4

Reperfusion Stability Monitoring

SOC

Confirm flow restoration.

SCF-DBI

Monitor physiologic consequences of reperfusion.

Reperfusion Risk Factors

Restoration of blood flow may release:

• Lactate
• Potassium
• Cytokines
• Reactive oxygen species
• Myoglobin

Surveillance Parameters

Output

Reperfusion Stability Score (RSS-V)

Domain 5

Limb/Organ Viability Mapping

SCF-DBI Enhancement

Assess not merely perfusion restoration but future functional survival.

Assessment Domains

Output

Regional Viability Preservation Map (RVPM)

Domain 6

Shunt Integrity Intelligence

SOC

Monitor shunt patency.

SCF-DBI

Monitor shunt ecosystem stability.

Failure Risks

Assessment Domains

Output

Shunt Integrity Score (SIS)

RHENOVA Integration

R1 — Survival Preservation

Restore:

• Flow continuity
• Tissue oxygenation
• Organ viability

Output:

Perfusion Rescue Status

R2 — Recovery Optimization

Reduce:

• Ischemic burden
• Endothelial injury
• Metabolic stress

Output:

Recovery Readiness Score

R3 — Regenerative Preservation

Protect:

• Endothelium
• Microcirculation
• Neuromuscular viability

Output:

Regenerative Viability Index

R4 — Definitive Reconstruction Preparation

Assess:

• Vascular repair readiness
• Graft requirements
• Limb salvage potential

Output:

Definitive Repair Matrix

R5 — Long-Term Resilience

Prevent:

• Graft failure
• Chronic ischemia
• Functional impairment
• Limb loss

Output:

Vascular Resilience Profile

SCF-DBI Vascular Shunting Workflow

Step 1

Identify vascular interruption.

Output

Regional Perfusion Interruption Severity Score

Step 2

Insert temporary vascular shunt.

Output

Flow Restoration Confirmation

Step 3

Assess perfusion continuity.

Output

Perfusion Continuity Score (PCS)

Step 4

Calculate Endothelial Viability Score.

Output

EVS

Step 5

Calculate Ischemia Tolerance Score.

Output

ITS

Step 6

Monitor reperfusion stability.

Output

Reperfusion Stability Score (RSS-V)

Step 7

Assess regional viability.

Output

Regional Viability Preservation Map

Step 8

Monitor shunt integrity.

Output

Shunt Integrity Score (SIS)

Step 9

Determine definitive vascular repair readiness.

Output

Definitive Repair Matrix

Glossary

SCF Principle Alignment

INDEX

SCF-SURG-VASCULAR-SHUNTING-0001

SCF-DBI-REGIONAL-PERFUSION-INTERRUPTION-SYNDROME-0001

SCF-DBI-ENDOTHELIAL-VIABILITY-SCORE-0001

SCF-DBI-ISCHEMIA-TOLERANCE-SCORE-0001

SCF-DBI-REPERFUSION-STABILITY-SCORE-VASCULAR-0001

SCF-DBI-SHUNT-INTEGRITY-SCORE-0001

SCF-TRAUMA-VASCULAR-SHUNTING-WORKFLOW-0014

SCF-VASCULAR-SHUNTING-MASTER-0001