SOC → SCF-DBI Logic Translation

Purpose

Temporary Intravascular Shunts (TIVS) are vascular conduits inserted across an injured artery or vein to temporarily restore blood flow during damage-control surgery, prolonged transport, staged reconstruction, or complex extremity salvage procedures.

TIVS are not definitive repairs.

They serve as biologic bridges that preserve tissue viability until definitive vascular reconstruction can be safely performed.

SOC Definition

Clinical Objective

Temporarily restore vascular continuity by:

• Re-establishing arterial inflow
• Maintaining venous drainage
• Preventing ischemia
• Preserving tissue viability
• Supporting staged reconstruction
• Enabling damage-control surgery

Common Indications

Damage-Control Surgery

• Hemodynamic instability
• Multiple competing injuries
• Need to abbreviate operative time

Limb Salvage

• Combined orthopedic–vascular trauma
• Mangled extremities
• Open fractures with arterial injury

Complex Reconstruction

• Delayed definitive repair
• Need for transfer to higher-level care
• Multi-team operative sequencing

SCF-DBI Translation

Core Concept

SOC views Temporary Intravascular Shunts as:

Temporary restoration of blood flow.

SCF-DBI views Temporary Intravascular Shunts as:

Preservation of the Regional Survival Perfusion Network During Reconstruction Delay.

The primary goal is not simply restoration of flow.

The primary goal is preservation of:

1. Tissue survival time
2. Endothelial integrity
3. Microvascular function
4. Neuromuscular viability
5. Regenerative potential
6. Reconstruction opportunity

SCF-DBI Temporary Shunt Architecture

Domain 1

Ischemia Clock Management

Major SCF-DBI Enhancement

Selected Enhancement:

Ischemia Clock + Endothelial Viability Tracker

This becomes the principal SCF-DBI enhancement beyond conventional TIVS management.

Rationale

SOC monitors:

• Time since injury
• Distal pulses
• Doppler signals

SCF-DBI monitors:

Remaining Tissue Survival Capacity

and

Endothelial Survival Capacity

simultaneously.

Ischemia Clock Logic

Tissue survival is not binary.

Every minute of interrupted perfusion progressively reduces:

• Cellular viability
• Neuromuscular integrity
• Regenerative potential

Ischemia Clock Domains

Ischemia States

Output

Ischemia Preservation Score (IPS)

Domain 2

Endothelial Viability Tracker

SCF-DBI Enhancement

Traditional shunt management evaluates:

• Patency
• Flow restoration

SCF-DBI evaluates:

Survival of the Endothelial Recovery Platform

because endothelial failure frequently precedes:

• Shunt thrombosis
• Microvascular collapse
• Reperfusion injury
• Failed reconstruction

Assessment Domains

Endothelial States

Output

Endothelial Viability Score (EVS-TIVS)

Domain 3

Regional Perfusion Preservation

SOC

Restore distal blood flow.

SCF-DBI

Preserve functional tissue perfusion.

Assessment Domains

Output

Regional Perfusion Preservation Score (RPPS)

Domain 4

Neuromuscular Viability Preservation

SCF-DBI Enhancement

Limb salvage depends upon preservation of:

• Muscle
• Peripheral nerves
• Motor units

not merely arterial patency.

Assessment Domains

Output

Neuromuscular Preservation Score (NPS)

Domain 5

Shunt Integrity Intelligence

SOC

Monitor shunt patency.

SCF-DBI

Monitor the entire perfusion-support system.

Failure Risks

Assessment Domains

Output

Temporary Shunt Integrity Score (TSIS)

Domain 6

Reperfusion Injury Risk Surveillance

SCF-DBI Enhancement

Flow restoration may trigger:

• Oxidative stress
• Cellular injury
• Compartment syndrome
• Rhabdomyolysis
• Systemic inflammatory activation

Assessment Domains

Output

Reperfusion Injury Risk Index (RIRI-TIVS)

Domain 7

Definitive Reconstruction Readiness

SCF-DBI Enhancement

The ultimate objective is successful transition to permanent repair.

Assessment Domains

Output

Definitive Repair Readiness Score (DRRS)

RHENOVA Integration

R1 — Survival Preservation

Restore:

• Distal perfusion
• Tissue oxygenation
• Limb viability

Output:

Perfusion Rescue Status

R2 — Recovery Optimization

Reduce:

• Ischemic burden
• Endothelial injury
• Neuromuscular loss

Output:

Recovery Readiness Score

R3 — Regenerative Preservation

Protect:

• Endothelium
• Microvasculature
• Neural architecture

Output:

Regenerative Preservation Profile

R4 — Reconstruction Preparation

Enable:

• Definitive vascular repair
• Limb salvage
• Functional restoration

Output:

Reconstruction Readiness Matrix

R5 — Long-Term Resilience

Prevent:

• Thrombosis
• Chronic ischemia
• Functional loss
• Limb loss

Output:

Limb Resilience Profile

SCF-DBI Temporary Intravascular Shunt Workflow

Step 1

Identify vascular interruption.

Output

Regional Ischemia Severity Score

Step 2

Insert temporary intravascular shunt.

Output

Flow Restoration Confirmation

Step 3

Activate Ischemia Clock Management.

Output

Ischemia Preservation Score (IPS)

Step 4

Activate Endothelial Viability Tracker.

Output

Endothelial Viability Score (EVS-TIVS)

Step 5

Assess regional perfusion preservation.

Output

Regional Perfusion Preservation Score

Step 6

Assess neuromuscular viability.

Output

Neuromuscular Preservation Score

Step 7

Evaluate shunt integrity.

Output

Temporary Shunt Integrity Score

Step 8

Monitor reperfusion injury risk.

Output

Reperfusion Injury Risk Index

Step 9

Determine definitive reconstruction readiness.

Output

Definitive Repair Readiness Score

Glossary

SCF Principle Alignment

INDEX

SCF-SURG-TEMPORARY-INTRAVASCULAR-SHUNT-0001

SCF-DBI-ISCHEMIA-CLOCK-MANAGEMENT-0001

SCF-DBI-ENDOTHELIAL-VIABILITY-TRACKER-0001

SCF-DBI-REGIONAL-PERFUSION-PRESERVATION-SCORE-0001

SCF-DBI-TEMPORARY-SHUNT-INTEGRITY-SCORE-0001

SCF-DBI-DEFINITIVE-REPAIR-READINESS-SCORE-0001

SCF-VASCULAR-DAMAGE-CONTROL-WORKFLOW-0032

SCF-TEMPORARY-INTRAVASCULAR-SHUNT-MASTER-0001