Congenital arteriovenous fistula
MONDO:0020296A congenital vascular disorder characterized byan abnormal connection between an artery and a vein, appearing as varicose veins with port wine discoloration, leading to a bypass of the capillary bed. Signs and symptoms include palpable continuous thrill in the dilated vessels, continuous machinery murmur with systolic accentuation, collapsing arterial pulse, Nicoladoni Branham sign, as well as local gigantism and hot ulcers due to hypoxia, among others.
Also known as: congenital arteriovenous shunt
57 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsSub-types
Broader categories
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New stent graft aims to keep dialysis veins open longer
Disease control CompletedThis study tested a special stent graft (WRAPSODY) against the usual balloon treatment for vein blockages in people on dialysis. The goal was to see if the stent graft could keep the vein open longer and reduce the need for repeat procedures. A total of 357 patients took part acr…
Phase: NA • Sponsor: Merit Medical Systems, Inc. • Aim: Disease control
Last updated Jun 27, 2026 13:06 UTC
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New device for dialysis access shows promise in 142 patients
Disease control CompletedThis study looked at how well the Ellipsys Vascular Access System works for creating arteriovenous (AV) fistulas in people with end-stage kidney disease who need dialysis. A total of 142 patients were followed for 12 months to see how long the access stayed open and how safe the …
Phase: NA • Sponsor: Medtronic Endovascular • Aim: Disease control
Last updated Jun 27, 2026 13:01 UTC
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New device aims to keep dialysis fistulas working longer
Disease control CompletedThis study tested a device called VasQ that wraps around a surgically created blood vessel connection (fistula) used for dialysis in people with kidney failure. The device is designed to improve blood flow and reduce complications. 144 patients received the device and were follow…
Phase: NA • Sponsor: Laminate Medical Technologies • Aim: Disease control
Last updated Jun 27, 2026 12:37 UTC
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New wire aims to make brain surgery safer
Disease control CompletedThis study tested a new medical wire, called the Tarvos Microguidewire, used during surgery on blood vessels in the brain. The wire helps doctors guide other tools to the right spot. Researchers looked back at records of 121 patients who had this wire used in their surgery for co…
Sponsor: Keuro MedTech • Aim: Disease control
Last updated Jun 27, 2026 12:03 UTC
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Numbing the right way: could a nerve block improve dialysis access surgery?
Disease control CompletedThis study looked at 78 people with advanced kidney failure who needed a surgery to create an arteriovenous fistula (a connection between an artery and vein) for dialysis. The goal was to see if using a nerve block (axillary block) instead of local anesthesia could reduce early p…
Phase: NA • Sponsor: Hospices Civils de Lyon • Aim: Disease control
Last updated Jun 27, 2026 08:05 UTC
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New stent aims to unclog dialysis veins
Disease control CompletedThis study tested a special mesh tube called a stent graft in 100 people on dialysis whose arm veins (fistulas) had narrowed. The stent is placed to prop the vein open and improve blood flow. Researchers tracked how long the vein stayed open without needing another procedure, and…
Phase: NA • Sponsor: C. R. Bard • Aim: Disease control
Last updated Jun 27, 2026 08:04 UTC
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Video Game-Like grip trainer boosts fistula health in kidney patients
Disease control CompletedThis study tested whether using a smart grip device with a game-like app could improve blood vessel function and hand strength in 52 kidney patients who had just had a first arteriovenous fistula surgery. Participants used the device daily for eight weeks, and researchers tracked…
Phase: NA • Sponsor: National Taipei University of Nursing and Health Sciences • Aim: Disease control
Last updated Jun 27, 2026 08:03 UTC
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New tube system could make dialysis access easier for kidney patients
Disease control CompletedThis study tested a new device called the FLEX System that creates a connection between an artery and a vein (AV fistula) using a tube inserted through the skin, instead of surgery. The goal was to see if this method is safe and works well for people with chronic kidney disease w…
Phase: NA • Sponsor: C. R. Bard • Aim: Disease control
Last updated Jun 27, 2026 08:00 UTC
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New device aims to improve dialysis access for kidney patients
Disease control CompletedThis study tested a new device called FLEX-1 that creates a special blood vessel connection (called an arteriovenous fistula) for people with advanced kidney disease who need dialysis. Sixteen adults with stage 4 or 5 chronic kidney disease took part. The goal was to see if the d…
Phase: NA • Sponsor: C. R. Bard • Aim: Disease control
Last updated Jun 27, 2026 08:00 UTC
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New device aims to simplify dialysis access for kidney patients
Disease control CompletedThis study tested a new device called FLEX-1 to create a special blood vessel connection (arteriovenous fistula) for dialysis in 17 adults with advanced chronic kidney disease. The goal was to see if the device is safe and works well for hemodialysis. The study focused on complic…
Phase: NA • Sponsor: C. R. Bard • Aim: Disease control
Last updated Jun 27, 2026 08:00 UTC
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New implant could keep dialysis lifelines open longer
Disease control CompletedThis study tested a special collagen implant coated with sirolimus (rapamycin) placed around a new dialysis fistula during surgery. The goal was to see if it helps the fistula become usable for dialysis sooner and stay working longer. About 269 people with advanced kidney disease…
Phase: PHASE3 • Sponsor: Vascular Therapies, Inc. • Aim: Disease control
Last updated Jun 27, 2026 07:54 UTC
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New implant could speed up dialysis fistula maturation
Disease control CompletedThis phase 3 trial tests a sirolimus-releasing collagen implant placed around a new dialysis fistula during surgery. The goal is to help the fistula mature faster so it can be used for dialysis. The study involves 136 people aged 65+ with kidney failure who are new to hemodialysi…
Phase: PHASE3 • Sponsor: Vascular Therapies, Inc. • Aim: Disease control
Last updated Jun 27, 2026 07:51 UTC
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Smart stethoscope listens for dialysis danger signs
Diagnosis CompletedThis study tested whether an electronic stethoscope can help doctors detect narrowing (stenosis) of the arteriovenous fistula in hemodialysis patients. Researchers collected sound recordings from 30 adults on long-term dialysis over 3 months. The goal was to see if the device cou…
Sponsor: National Taiwan University Hospital • Aim: Diagnosis
Last updated Aug 06, 2026 00:00 UTC
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Can ultrasound predict which dialysis access will work?
Diagnosis CompletedThis study tested whether advanced ultrasound techniques can predict if an arteriovenous fistula (AVF) will work for dialysis in people with end-stage kidney disease. Researchers measured artery stiffness and blood flow in 76 patients before and after AVF surgery. The goal was to…
Sponsor: Imperial College London • Aim: Diagnosis
Last updated Jun 27, 2026 09:10 UTC
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Virtual reality tested as needle pain relief for dialysis patients
Symptom relief CompletedThis study tests whether wearing virtual reality (VR) glasses during needle insertion can reduce pain and anxiety in hemodialysis patients. 150 adults with end-stage kidney disease will either receive standard care or watch a calming 360-degree underwater video through VR goggles…
Phase: NA • Sponsor: Karbala University • Aim: Symptom relief
Last updated Jul 15, 2026 00:00 UTC
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Music and acupressure may soothe dialysis needle pain
Symptom relief CompletedThis study tested whether listening to music and applying acupressure before needle insertion can reduce pain in dialysis patients. 72 participants were split into four groups: music plus acupressure, acupressure alone, music alone, or standard care. Pain was measured during thre…
Phase: NA • Sponsor: Gülsüm Gülşen • Aim: Symptom relief
Last updated Jun 27, 2026 14:01 UTC
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VR goggles take the sting out of dialysis needles
Symptom relief CompletedThis study tested whether wearing virtual reality goggles during the needle stick for dialysis can lower pain and anxiety. Fifty adults on hemodialysis were randomly assigned to either watch VR content during the procedure or receive usual care. The results will show if a simple,…
Phase: NA • Sponsor: KTO Karatay University • Aim: Symptom relief
Last updated Jun 27, 2026 13:01 UTC
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Squeeze your way to better dialysis: handgrip training boosts fistula success
Symptom relief CompletedThis study tested whether doing handgrip exercises before and after surgery can improve the size and function of dialysis fistulas in people with advanced kidney disease. 40 patients participated, and the main goal was to see if the fistula diameter increased. The approach is sim…
Phase: NA • Sponsor: Hospices Civils de Lyon • Aim: Symptom relief
Last updated Jun 27, 2026 12:24 UTC
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VR headsets could take the sting out of dialysis needles
Symptom relief CompletedThis study tested whether watching calming VR videos (nature, forest, seaside) during needle insertion could reduce pain, distress, and improve comfort in 52 hemodialysis patients. Patients used VR headsets starting three minutes before the procedure. The goal was to see if this …
Phase: NA • Sponsor: Tarsus University • Aim: Symptom relief
Last updated Jun 27, 2026 09:08 UTC
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New nerve block could slash opioid use in Kids' kidney surgery
Symptom relief CompletedThis study tested a nerve block called a supraclavicular brachial plexus block in 50 children aged 6 to 18 who were having surgery to create an arteriovenous fistula for dialysis. The goal was to see if the block could reduce the amount of opioid pain medicine needed during and a…
Phase: NA • Sponsor: Tanta University • Aim: Symptom relief
Last updated Jun 27, 2026 09:00 UTC
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Simple tricks slash dialysis pain: music or mirror beats needle fear
Symptom relief CompletedThis study tested two simple, drug-free ways to reduce pain when inserting needles for dialysis. 75 patients were split into three groups: one listened to calming music, one looked at their healthy arm in a mirror, and one received standard care. Pain scores were compared right a…
Phase: NA • Sponsor: Izmir Kavram Vocational School • Aim: Symptom relief
Last updated Jun 27, 2026 08:09 UTC
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Numbing sprays ease dialysis needle pain, study finds
Symptom relief CompletedThis study tested whether lidocaine or benzocaine sprays could reduce pain and improve satisfaction during needle insertion for hemodialysis. 60 patients were randomly assigned to receive one of the two numbing sprays or a placebo. The goal was to see if these sprays make the pro…
Phase: PHASE3 • Sponsor: TC Erciyes University • Aim: Symptom relief
Last updated Jun 27, 2026 08:00 UTC
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Simple hand exercise may boost dialysis success
Symptom relief CompletedThis study tested if doing hand grip exercises for six weeks helps the arm blood vessel connection (fistula) used for dialysis grow stronger and work better. 34 adults with kidney failure on dialysis were randomly assigned to either do the exercises or receive standard care. The …
Phase: NA • Sponsor: Mansoura University • Aim: Symptom relief
Last updated Jun 27, 2026 07:58 UTC
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Study aims to find best dialysis access for seniors
Knowledge-focused CompletedThis study looked at 166 older adults (65+) on hemodialysis to compare three types of vascular access: fistulas, grafts, and catheters. The goal was to see which option leads to fewer complications and better quality of life. Researchers tracked how many procedures were needed to…
Phase: NA • Sponsor: Maastricht University Medical Center • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:02 UTC
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New implant aims to simplify dialysis fistula monitoring
Knowledge-focused CompletedThis study tested a new device called EchoMark LP, which is implanted near a surgically created blood vessel connection (fistula) used for dialysis. The device works with a special ultrasound system (EchoSure) to measure blood flow, depth, and diameter of the fistula. The trial i…
Phase: NA • Sponsor: Sonavex, Inc. • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:36 UTC
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Simulation training for dialysis nurses shows promise in reducing needle mishaps
Knowledge-focused CompletedThis study looked at whether adding hands-on simulation training to standard classroom teaching helps nurses cause fewer problems when inserting needles into the arm access (arteriovenous fistula) of dialysis patients. About 9600 adults on chronic hemodialysis took part. The goal…
Phase: NA • Sponsor: University Hospital, Caen • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:28 UTC
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Massive study explores safety of Office-Based blood vessel procedures
Knowledge-focused CompletedThis completed study looked at 26,000 patients who had outpatient procedures for blood vessel problems like peripheral artery disease, varicose veins, or dialysis access issues. The goal was to see how safe and effective these procedures are when done in an office-based angiosuit…
Sponsor: Methodist Health System • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:00 UTC