The document outlines a 10-minute process for examining arteriovenous fistulas (AVF) to ensure proper functioning and early detection of complications. Key examination steps include inspecting for infection, hematomas, signs of ischemia, and assessing the AVF pulse character and thrill. Understanding the AVF as a continuous circuit is emphasized to enhance patient outcomes.
How to examineAVF
in 10 minutes
Mohammed Abdel Gawad
Nephrology Specialist
Kidney & Urology Center (KUC)
Alexandria – EGY
[email protected]
18th KUC Club – 19, Aug, 2016
2.
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Important Concept
AVF isa continuous circuit
Examination should also include the
remaining part of arm, shoulder, breast,
neck, and face
Examination should not be limited to
the site of the AV access
Don’t think about AVF as it is only
anastomosis in the arm.
AVF is a continuous circuit which starts
at the heart and ends at the heart
How to ExamineAVF?
1. Vascular access scar site
2. Signs of infection/inflammation
3. Hematoma
4. Signs of ischemia (Steal syndrome)
5. Aneurysm
6. Arm elevation test
7. Collaterals (Central vein stenosis)
11.
How to ExamineAVF?
1. Vascular access scar site
2. Signs of infection/inflammation
3. Hematoma
4. Signs of ischemia (Steal syndrome)
5. Aneurysm
6. Arm elevation test
7. Collaterals (Central vein stenosis)
How to ExamineAVF?
1. Vascular access scar site
2. Signs of infection/inflammation
3. Hematoma
4. Signs of ischemia (Steal syndrome)
5. Aneurysm
6. Arm elevation test
7. Collaterals (Central vein stenosis)
20.
How to ExamineAVF?
1. Vascular access scar site
2. Signs of infection/inflammation
3. Hematoma
4. Signs of ischemia (Steal syndrome)
5. Aneurysm
6. Arm elevation test
7. Collaterals (Central vein stenosis)
(A)
Early chronic ischemiaof
hand without tissue loss
(hand was cold).
(B)
Tissue loss at the fingertip
is evident (dry gangrene).
Inspection
4- Signs of Ischemia (Steal Syndrome)
29.
How to ExamineAVF?
1. Vascular access scar site
2. Signs of infection/inflammation
3. Hematoma
4. Signs of ischemia (Steal syndrome)
5. Aneurysm
6. Arm elevation test
7. Collaterals (Central vein stenosis)
30.
How to ExamineAVF?
1. Vascular access scar site
2. Signs of infection/inflammation
3. Hematoma
4. Signs of ischemia (Steal syndrome)
5. Aneurysm
6. Arm elevation test
7. Collaterals (Central vein stenosis)
How to ExamineAVF?
Inflow
Outflow
Feel to detect outflow or inflow problem
1. AVF Pulse Character
2. AVF Thrill
3. Pulse Augmentation Test
4. Sequential occlusion test
5. Access vs Non Access Limb
44.
How to ExamineAVF?
Inflow
Outflow
Feel to detect outflow or inflow problem
1. AVF Pulse Character
2. AVF Thrill
3. Pulse Augmentation Test
4. Sequential occlusion test
5. Access vs Non Access Limb
Palpation
2-AVF Thrill
Examine thrillfrom anastomosis
all way to chest wall
Outflow Stenosis
Strong, Localized Weak, not localized
Inflow Stenosis
Abnormally: Discontinues Thrill (Systolic only)
Normally:
Continues Thrill
52.
How to ExamineAVF?
Inflow
Outflow
Feel to detect outflow or inflow problem
1. AVF Pulse Character
2. AVF Thrill
3. Pulse Augmentation Test
4. Sequential occlusion test
5. Access vs Non Access Limb
53.
How to ExamineAVF?
Inflow
Outflow
Feel to detect outflow or inflow problem
1. AVF Pulse Character
2. AVF Thrill
3. Pulse Augmentation Test
4. Sequential occlusion test
5. Access vs Non Access Limb
Palpation
3-Pulse Augmentation Test
NoPulse augmentation,
No thrill
= Inflow stenosis
No Pulse augmentation,
Normal thrill
= Accessory Vein(s)
No Pulse augmentation
59.
Palpation
3-Pulse Augmentation Test
NoPulse augmentation,
No thrill
= Inflow stenosis
No Pulse augmentation,
Normal thrill
= Accessory Vein(s)
Sequential occlusion test
No Pulse augmentation
60.
Palpation
4-Sequential occlusion test
Todetect the level of
accessory veins
Still No Pulse augmentation,
Normal thrill
Augmentation, No thrill = Level of
accessory vein detected
61.
How to ExamineAVF?
Inflow
Outflow
Feel to detect outflow or inflow problem
1. AVF Pulse Character
2. AVF Thrill
3. Pulse Augmentation Test
4. Sequential occlusion test
5. Access vs Non Access Limb
62.
How to ExamineAVF?
Inflow
Outflow
Feel to detect outflow or inflow problem
1. AVF Pulse Character
2. AVF Thrill
3. Pulse Augmentation Test
4. Sequential occlusion test
5. Access vs Non Access Limb
63.
Palpation
5-Access vs NonAccess Limb
Test Suspected Abnormality
Temperature
Warm + swelling = infection
Cold = Steal syndrome
Grip strength
Steal syndromeRange of motion
Sensory loss