🎯 The Sladen-Reid Vascular Pump
Effective Treatment for Chronic Venous Leg Ulcers
Diagram showing the six clinical stages of chronic venous insufficiency, ranging from spider veins and varicose veins to skin changes and active leg ulcers.

Dealing with a chronic, non-healing Venous Leg Ulcer (VLU)? The problem is often intense venous hypertension in the lower leg that standard bandaging cannot overcome.

The Reid-Sladen Vascular Pump, developed by vascular surgeons Dr. Joseph Sladen and Dr. John Reid, offers a proven, non-surgical solution!


"The Key is Targeted Compression on and around the ulcer Using Latex Foam!"

Especially in the lower leg and ankle area!  This technique uses strategically placed piece of 2-inch thick, high-density latex foam add targeted compression underneath a compression wrap. The foam acts as a Pressure Intensifier, forcefully pushing fluid out of the ulcer bed and accelerating healing.

Legulcers.ca is the definitive guide to understanding this unique method and the power of latex foam in creating the effective Vascular Pump action necessary for VLU closure.


What Causes Venous Leg Ulcers (VLUs)?

Venous Leg Ulcers are primarily caused by a condition called Venous Hypertension—chronically high pressure within the veins of the lower leg. This is not a circulation problem to the leg (arterial), but a problem of blood returning from the leg to the heart.

The Breakdown: Faulty Valves

  • 1.  Incompetent Valves: Veins contain one-way valves that prevent blood from flowing backward due to gravity. Over time, these valves can become damaged or "incompetent."

  • 2.  Blood Reflux: When valves fail, blood leaks backward (reflux) and pools in the lower leg, particularly around the ankle.

  • Pressure Spike: This pooling causes the pressure inside the veins to skyrocket (Venous Hypertension). This high pressure forces fluid and essential nutrients to leak out of the vessels and into the surrounding tissues.

  • 3.  Tissue Starvation: The resulting massive swelling (edema) starves the skin and tissue, leading to a breakdown that forms a painful, chronic open wound: the Venous Leg Ulcer (VLU).

The Solution: Effective VLU treatment, like the Sladen-Reid Vascular Pump, must directly address and counteract this underlying venous hypertension at the ulcer on the Leg or ankle.    

Three-part diagram of a leg vein: the first shows an open valve with blood flowing upward; the second shows a closed healthy valve preventing backflow; the third shows an incompetent valve where blood leaks backward, causing the vein to bulge.
Poor Leg Circulation

What can causes poor blood return in the leg? Standing for long periods, being over weight,  injury,  DVT (Deep Vein Thrombosis) are all significant factors that can lead to or worsen damaged (bad) leg valves.  The veins contain one way valves that stop blood from flowing backward due to gravity fail and the blood leaks backward and pools in the lower leg, particularly around the ankle.

An animation comparing blood flow in a healthy deep vein versus a diseased deep vein. In the healthy vein, blood pulses upward efficiently. In the diseased vein, blood slows, pools, and flows backward due to damaged valves.
Deep Vein Thrombosis

Blood pooling in the lower leg dramatically increases the pressure inside the veins stretching them (venous hypertension). This pressure forces fluid to leak out, damaging surrounding tissues.  Essential fluids and nutrients to leak out of the veins and into the surrounding lower leg tissue. This chronic leakage and resulting inflammation starve the skin, eventually leading to the formation of difficult-to-heal venous ulcers

An animation of a bulging varicose vein being squeezed by external pressure. As the vein narrows, the valves begin to close properly, and the blood flow changes from pooling/backflow to a steady upward stream.
Compression

Tensor wraps and compression stockings which has been the called "The Gold Standard"  is a first line treatment.  Is very effective on the legs and calf.  Compressing the veins and helping the valves to stop the backward movement.  But in the lower leg, especially around the ankle they are very ineffective.   They allow the ankle area to swell and leak causing lower leg and ankle ulcers.  

Animation of the Sladen-Reid Venous Pump technique. High-density latex foam is placed over the ankle hollows under a compression wrap. As the ankle moves, the foam intensely compresses the tissue, pumping pooled fluid and blood out of the ulcer area.
Target Compression

The need for effective targeted compression in the swollen ulcerated area was necessary to promote healing.  The Sladen-Reid vascular pump when placed under the compression wrap or sock  provides this targeted compression.  Its unique design uses the patient's natural gait to pump leaked fluid back into the venous system, refilling the area with fresh blood. They discovered that just a piece of foam shaped to fit the area completes the last piece of the compression puzzle.

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How To Heal Leg Ulcers

🔨 Step-by-Step Guide: Applying the Sladen-Reid Vascular Pump

This technique utilizes a high-density, 1.5-inch foam to generate highly focused and effective compression, directly addressing the venous hypertension that causes Venous Leg Ulcers (VLUs). This method should be performed by a healthcare professional or an informed caregiver trained in compression bandaging techniques.

Animation showing the first step of treating a venous leg ulcer: clean the ulcer then a sterile primary bandage is carefully placed over the open wound to protect the tissue before foam and compression are applied.
Clean & Bandage

Its best to raise the leg above the waist before cleaning, then apply a sterile, moisture-balancing primary dressing (like a foam or hydrocolloid) that is large enough to completely cover the ulcer and isolate the wound from the foam.   it is also good to put a light stocking over the foot and ankle before to prepare the leg for foam compression.

Animation showing a clinician measuring and cutting a high-density latex foam block to fit the patient's ankle hollows, then placing it precisely over the primary dressing to prepare for the Sladen-Reid pump effect.
Focused Compression Layer

Custom-cut the 1.5-inch latex foam to fully cover the venous ulcer and surrounding edema (swelling) shaping it so that it conforms to the area. This contoured foam layer is essential for creating the necessary focused pressure gradient that drives fluid away from the wound bed.  

Step 3: The Final Wrap. An elastic bandage is applied to secure the Sladen-Reid foam, creating the necessary tension to activate the vascular pump during movement.
Apply Compression

Before putting on the compression system Elevate the leg above the waist while lying flat to minimize swelling. Secure the primary dressing and foam padding with a light covering bandage or sock. Then, apply the definitive graduated compression (stocking or wrap), ensuring the pressure is highest at the ankle to promote proper blood flow without restricting circulation.

Animation of the Sladen-Reid Venous Pump technique. High-density latex foam is placed over the ankle hollows under a compression wrap. As the ankle moves, the foam intensely compresses the tissue, pumping pooled fluid and blood out of the ulcer area.
Venous Pump

  As you move you leg the compression of the foam will expand and contract working with your calf muscles to push the fluid back into the venous system and allow the veins to refill, acting like a pump.  This motion compresses out the fluid and increases blood flow (venous performance) allowing the ulcer to heal.

A comparison of three medical foams: polyurethane foam and perforated latex foam are marked with red Xs as incorrect choices, while solid high-density latex foam is highlighted with a green checkmark as the correct material for a venous pump.

Get the Right Foam Padding

The latex foam padding (solid, without pillow/mattress pinholes) must be a very firm, thick, soft, and comfortable material, custom-shaped to cover the ulcer and swelling. Its role is to deliver localized, therapeutic pressure without causing pain—unlike harsh cottons. Crucially, most polyurethane foams compress too easily to achieve the vital, focused pressure necessary for ulcer healing.  Need some Latex foam?  Make sure you get foam with no holes.   Have Questions?  Contact us below!

Get Free Foam!

Surgeon, Doctor, Caregiver ......

Like to try this method?  We will send you foam for free!    Send us a text and we will put some in the mail for you!  Can't find foam, contact us!

Placed Foam
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Important Information

From new procedures to easy ways to put on compression stockings, hopefully you will find it here!

Foam sclerotherapy is a minimally invasive procedure where a medicated solution is mixed with air to create a "shaving cream" consistency, which is then injected into diseased veins. This foam displaces the blood to ensure maximum contact with the vein walls, causing them to collapse and eventually be absorbed by the body.

This is my testimonial about how I closed my 5 years old ulcer after many unsuccessful treatments!

This is different methods to easily apply compression stockings even over compression foam.  Try to put your stockings on before getting out of bed or with your leg raised above your heart.

Portrait of Dr. Sladen, the medical innovator and co-developer of the Sladen-Reid Venous Pump protocol for the treatment of chronic venous leg ulcers.

Dr. Joseph G. Sladen, MD, FRCSC (1929–2016) 

Dr. Joseph G. Sladen was the former, highly distinguished Head of the Division of Vascular Surgery at St. Paul's Hospital in Vancouver, and a Professor Emeritus at the University of British Columbia (UBC).

  • Key Role: Dr. Sladen was the pioneer of the foam compression concept, recognizing the need to overcome venous hypertension with targeted, high-density pressure.

  • Leadership: He was a respected figure who led the division for many years and served as President of both the Canadian Society for Vascular Surgery and the U.S. Society for Clinical Vascular Surgery.

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Courtesy of ST.Pauls Foundation

Dr. John D. S. Reid, MD, FRCSC, FACS 

Dr. John D. S. Reid is a highly respected Clinical Professor and Vascular Surgeon with the Division of Vascular Surgery at St. Paul's Hospital in Vancouver.

  • Key Role: Dr. Reid worked closely with Dr. Sladen to develop, refine, and prove the efficacy of the Vascular Pump technique, ensuring its implementation and continued use in patient care.

  • Expertise: He is an active member of the surgical staff at St. Paul's Hospital and his clinical interests include complex vascular conditions and trauma, demonstrating the expertise he brought to creating this simplified, yet highly effective, compression method.

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Testimonials from Our Community

Portrait of Ron Learn, a long-term user of the Sladen-Reid venous pump, demonstrating the successful long-term management of chronic venous insufficiency and leg health.

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⭐️ Patient Testimonial: Ron's Story 

I met Dr Sladen in  1976.  He was my savior!

I remember that day well. For four years, I suffered from chronic, painful Venous Leg Ulcer.  After numerous different doctors (around 12) promised to heal my ulcers. In the three or 4-year time span completing numerous therapies (vein stripping, debriding, skin grafts, viscopaste casts ....) some very painful,  none  successful. I walked into his office and after a brief informal inspection.  He said he would heal the ulcer within 2 weeks!

he said that he would heal them no problem. All he did was clean the ulcer, covered it with large bandage, cut and shaped  a piece of foam and placed it directly on the ulcer, wrap my ankle with a tensor bandage. 

"Think I would believe him?  NO! Yet it healed in under 2 weeks!" 

All he did was clean the ulcer, covered it with large bandage, cut and shaped  a piece of foam and placed it directly on the ulcer, wrap my ankle with a Gauze bandage, and put a compression stocking over it all.  I could not believe it!


"Simple Foam Healed a Four-Year Old Persistent Ulcer"

I have used this foam for over 40 Years with success at keeping my venous ulcers closed!   

they have changed my life!  Thanks To both Dr Sladen and DR Reid!

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