interventions for dialysis access steal syndromes · interventions for dialysis access steal...
TRANSCRIPT
![Page 1: Interventions for Dialysis Access Steal Syndromes · Interventions for Dialysis Access Steal Syndromes W. Todd Bohannon, MD Director, Division of Vascular Surgery Clinical Associate](https://reader035.vdocuments.mx/reader035/viewer/2022071214/6043e69ec0b4a767cc245f7f/html5/thumbnails/1.jpg)
Interventions for Dialysis Access
Steal Syndromes
W. Todd Bohannon, MD
Director, Division of Vascular Surgery
Clinical Associate Professor, TAMU HSC
Temple, Texas
March 7th, 2019
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Disclosures
• None.
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• First described by
Storey et al in 1969
• Extremity ischemia
induced by the
shunting of significant
arterial flow through
an AV access thereby
reducing distal
perfusion.
Introduction
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• Digital blood flow reduced in 80% of access cases.
– Only few with symptoms.
– 10% with coolness and tingling that often resolves.
• Clinically significant steal.– Autologous 1-2%
– Brachial 4-8%
Introduction
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Hemodynamics
Understanding Strategies for the Treatment of Ischemic StealSyndrome after Hemodialysis AccessWixon, et al. J Am Coll Surg 2000;191:301–310
Blood flow in large fistulas is independent of the fistula diameter
and depends more on the resistance of the inflow artery, the
peripheral circulation, and the collateral network.
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Pathophysiology
• Low resistance venous outflow and high resistance arterial bed.
• Distal disease with stenosis or inability to vasodilate.
• Augmentation of symptoms by hypotension and decreased cardiac output accompanying dialysis.
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Classification
• Grade 0: No Symptoms
• Grade 1: Mild – cool extremity, few symptoms, flow augmentation with access occlusion
• Grade 2: Moderate – intermittent ischemia only during dialysis, claudication
• Grade 3: Severe – ischemic rest pain, tissue loss
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Risk Factors
• Diabetes
• PAD
• CAD
• Brachial based access
• Pre-op DBI < 0.6
• Digit pressure <60mmHg
Tynan-Cuisinier. Eur J Vasc Endovasc Surg 2002 (32) 309-315.
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Steal Symptoms
• Symptoms present either <24hrs or weeks
to months post-op.
• Burning
• Numbness
• Paresthesias
• Weakness
• Coolness
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Steal Signs
• Cyanosis
• Delayed cap refill
• Pallor
• Absent pulses/signals
• Diminished sensation
• Weakness
• Ulcers/Gangrene
• Improvement with access occlusion
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Differential Diagnosis
• Ischemic Monomelic Neuropathy (IMN)
must be considered for acute post-op
presentation.
• Carpal Tunnel Syndrome.
• Venous hypertension.
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Evaluation for Steal: PPG
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• High flow
(>900ml/min)
• Retrograde flow
Evaluation for Steal: Duplex
Strandness's Duplex Scanning in Vascular Disorders, 5th Edition. Wolters Kluwer Health, 20151027.
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Evaluation for Steal: Angiography
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Aim
• Reduce access flow
• Augment peripheral flow
Goal
• Resolve symptoms.
• Preserve access.
Treatment
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• Banding.
– Miller Procedure.
• DRIL.
• RUDI.
• PAI: Proximal arterial
inflow.
• Ligation.
Treatment Options
15Tynan-Cuisinier. Eur J Vasc Endovasc Surg 2002 (32) 309-315.
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Banding
• Variable success
rates reported
• Flow monitoring
• Miller/Modified-
Miller techniques.
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Minimally Invasive Limited Ligation
Endoluminal-assisted Revision (MILLER)
• Used for fistula revision
in the setting of steal
syndrome.
• Controlled ligation (non-
absorbable suture) of
the fistula with the aid
of a balloon.
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Minimally invasive limited ligation
endoluminal-assisted revision
(MILLER)
• 57 year old woman with right hand pain and
numbness, worse during dialysis.
• Right radiocephalic fistula created 5 months
prior.
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MILLER procedure
Fistula open Fistula occluded
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MILLER procedure (photo’s from recent pt)
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MILLER procedure
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Distal Revascularization-Interval Ligation
(DRIL)
• Creates a bypass proximal to the arterial anastomosis and to the vessel distal.
• Ligation to the vessel distal to arterial anastomosis.
• Prevents retrograde flow from the distal vessel.
• Lower resistance pathway distally.
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Revision Using Distal Inflow (RUDI)
• Ligation of fistula at the
arterial anastomosis.
• Inflow moved to a more
distal vessel.
• Decreases flow through
the access due to
diameter reduction in
the fistula and smaller
inflow artery.
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Proximalization of Arterial Inflow (PAI)
Zanow, et al. J Vasc Surg 2006;43:1216-21
Maintains arterial continuity.
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Operative configurations
- DRIL and RUDI usually autologous conduit.
- PAI usually prosthetic conduit.
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Treatment Algorithm for Steal
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Ligation
• Definitively resolves steal symptoms.
• Sacrifices functional access.
• Last resort for steal.
• First line for Ischemic MonomelicNeuropathy (IMN) .
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Summary
• Clinically significant access related hand
ischemia can be a serious threat to a
functioning dialysis access.
• There are numerous successful strategies
to manage and preserve access in patients
with steal syndrome.
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Selected References
• Robert C. Knox, Scott S. Berman, John D. Hughes, Andrew T. Gentile, Joseph L. Mills, Distal revascularization-interval ligation: A durable and effective treatment for ischemic steal syndrome after hemodialysis access, Journal of Vascular Surgery,Volume 36, Issue 2, 2002, Pages 250-256.
• A Miller, Gregg & Goel, Naveen & Friedman, Alexander & Khariton, Aleksandr & C Jotwani, Manish & Savransky, Yevgeny & Khariton, Konstantin & P Arnold, William & Preddie, Dean. (2009). The MILLER banding procedure is an effective method for treating dialysis-associated steal syndrome. Kidney international. 77. 359-66.
• Minion. David J. et al. Revision Using Distal Inflow: A Novel Approach to Dialysis-associated Steal Syndrome Annals of Vascular Surgery , Volume 19 , Issue 5 , 625 – 628.
• Rutherford’s Vascular Surgery and Endovascular Therapy, 9th Edition Elsevier
• Strandness's Duplex Scanning in Vascular Disorders, 5th Edition. Wolters Kluwer Health, 20151027.
• Christopher L Wixon, John D Hughes, Joseph L Mills, Understanding strategies for the treatment of ischemic steal syndrome after hemodialysis access11No competing interests declared.,Journal of the American College of Surgeons, Volume 191, Issue 3,2000, Pages 301-310.
• Jurgen Zanow, Ulf Kruger, Hans Scholz. Proximalization of the arterial inflow: A new technique to treat access-related ischemia. Journal of Vascular Surgery, Volume 43, Issue 6, 2006,Pages 1216-1221.
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RUDI vs. DRIL
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