Palmar Arch Test / AV Fistula
The Palmar Arch Test and AV Fistula assessment are specialized vascular tests used to evaluate blood flow in the hand and arteriovenous connections. These tests are essential for pre-surgical planning, dialysis access evaluation, and comprehensive hand vascular assessment.
The Palmar Arch Test assesses the integrity of the arterial supply to the hand, while AV Fistula evaluation examines the function and patency of arteriovenous connections, often used for dialysis access. Both tests are crucial for ensuring adequate blood flow and preventing complications.
- Non-invasive and safe
- Critical for surgical planning and dialysis management
- Provides real-time assessment of hand circulation
The Palmar Arch Test involves occluding the radial and ulnar arteries and observing blood flow restoration to the hand. AV Fistula assessment uses Doppler and PPG sensors to evaluate flow and detect any abnormalities in the fistula or graft.
- Manual compression and release techniques
- Doppler and PPG waveform analysis
- Automated data capture and reporting
Palmar Arch Test & AV Fistula Assessment
1Palmar Arch Test
Compression Phase
Compress both radial and ulnar arteries at the wrist
Release Phase
Release one artery and observe hand perfusion restoration
Assessment
Evaluate palmar arch integrity and collateral circulation
2AV Fistula Assessment
Inflow Assessment
Evaluate arterial inflow to the fistula/graft
Outflow Assessment
Measure venous outflow and detect stenosis
Flow Analysis
Analyze waveforms for patency and function
Palmar Arch Test Results
- Normal: Hand perfuses with single artery release
- Abnormal: Requires both arteries for adequate perfusion
- Clinical Significance: Indicates palmar arch insufficiency
AV Fistula Assessment
- Inflow: Arterial pressure and flow velocity
- Outflow: Venous pressure and resistance
- Clinical Significance: Detects stenosis and dysfunction
These tests are invaluable for:
- Ensuring safe surgical and dialysis access
- Detecting vascular abnormalities in the hand
- Guiding treatment and monitoring outcomes
- Supporting early intervention and improved patient care
These tests are recommended in clinical guidelines for comprehensive hand and access site assessment.
VasoGuard systems streamline Palmar Arch and AV Fistula testing with automated workflows, high-precision sensors, and intuitive software. Clinicians benefit from real-time data, comprehensive reporting, and seamless integration with EMR systems.
- Automated multi-site measurement
- High-resolution waveform display
- Comprehensive data management and export