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Arteriovenous Fistula Complications and FailureNCT01669850

Clipped Versus Handsewn Arteriovenous Fistula Anastomosis

A study testing Clipped anastomosis and Handsewn anastomosis in people with Arteriovenous Fistula Complications and Failure, run by Gundersen Lutheran Medical Foundation at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this study is to determine whether handsewn anastomosis versus clipped technique is associated with more complications, fistula failures, surgical cost and surgical time. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Clipped anastomosis and Handsewn anastomosis
Could I receive a placebo?
No, everyone receives an active treatment
How many people
38 participants
Where
1 siteUnited States
Study dates
Aug 2012to Dec 2014
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 18 years of age or older.
  • Need for AVF creation for vascular access for planned hemodialysis (within 1 year).
  • The planned AVF site must be naïve of prior AVF creations.
  • Vein mapping studies completed
  • 2.5 - 3mm minimum vein diameter on mapping

Who cannot join

  • Less than 18 years of age.
  • Inability to provide consent.
  • Previous failed AVFs in both arms.
  • Contraindications to AVF creation:
  • ipsilateral proximal venous and arterial occlusion or stenosis
  • systemic or local infection
  • too ill to operate
  • Anticipated inability to keep 30-day postoperative follow-up appointment.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Gundersen Lutheran Health System

    La Crosse, Wisconsin, 54601

Other trials in United States

About this study

Official title: The Safety and Effectiveness of Clipped Technique vs. Hand-Sewn Technique for Anastomosis in Arteriovenous Fistulas

The purpose of this study is to determine whether handsewn anastomosis versus clipped technique is associated with more complications, fistula failures, surgical cost and surgical time.

Read the detailed description

End stage renal disease requiring hemodialysis has become more prevalent in recent years. Achieving vascular access is an important step in receiving hemodialysis. Recent national goals have established that approximately 65% of all dialysis access points should be arteriovenous fistulas due to higher patency rates and decreased rates of further surgeries. Multiple studies have been done to assess optimal suture technique for arteriovenous anastomoses. The use of clips versus a handsewn technique has been evaluated in retrospective studies with some reports indicating a higher primary patency rate with a clip technique. Further study is needed to definitively determine the technique that results in the highest patency rates and lowest rate of re-operation. The purpose of this study is to determine whether hand-sewn anastomosis versus a clipped technique is associated with more complications, failures, surgical cost and surgical time by randomizing patients to either a clipped anastomosis group or a handsewn anastomosis group.

Being tested
Clipped anastomosis, Handsewn anastomosis
Keywords
Chronic kidney disease, Arteriovenous fistula, Surgical anastomosis, Complications, Patency, Dialysis access
Medical subject headings
Renal Insufficiency, Chronic, Arteriovenous Fistula

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Clipped anastomosisDevice

    Also called Anastoclip (Le Maitre)

    The vascular clip devise will be used to complete the anastomosis during fistula creation.

  • Handsewn anastomosisProcedure or surgery

    a handsewn anastomosis technique will be used during fistula creation.

Study groups in NCT01669850
Study groupRoleWhat they receive
Clipped anastomosisExperimentalA vascular clip device will be used to create the anastomosis during arteriovenous fistula creation.
Receives: Device: Clipped anastomosis
Handsewn anastomosisActive comparatorA handsewn technique will be used to create the anastomosis in arteriovenous fistula creation.
Receives: Procedure: Handsewn anastomosis

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Patency rates

    Patency will be assessed and the fistula considered patent if it has been accessed for dialysis at least once, or based on clinical assessment with palpable thrill if dialysis access has not been attempted.

    Measured: 2 years postoperative

Secondary outcomes (1)
  1. Surgical complications

    Complications will be monitored intraoperatively, and postoperatively. These include any re-interventions, and wound complications, infection, hematoma, thrombosis , steal syndrome, distal ischemia.

    Measured: 2 years postoperative

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Aug 2012 (estimated)
  2. Study startAug 2012
  3. Primary completionDec 2014
  4. Study completionDec 2014

Why it stopped: minimal accrual

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
38 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01669850
Sponsor's protocol ID
2-12-07-002
Status last verified
Sep 2015
First submitted
16 Aug 2012
Last updated
7 Sep 2015
Results posted
No
Data monitoring committee
No

Publications

  • Baguneid MS, Goldner S, Fulford PE, Hamilton G, Walker MG, Seifalian AM. A comparison of para-anastomotic compliance profiles after vascular anastomosis: nonpenetrating clips versus standard sutures. J Vasc Surg. 2001 Apr;33(4):812-20. doi: 10.1067/mva.2001.112806.

    PubMed 11296337
  • Lin PH, Bush RL, Nelson JC, Lam R, Paladugu R, Chen C, Quinn G, Lumsden AB. A prospective evaluation of interrupted nitinol surgical clips in arteriovenous fistula for hemodialysis. Am J Surg. 2003 Dec;186(6):625-30. doi: 10.1016/j.amjsurg.2003.08.007.

    PubMed 14672769
  • Varcoe RL, Teo AB, Pelletier MH, Yu Y, Yang JL, Crowe PJ, Walsh WR. An arteriovenous fistula model of intimal hyperplasia for evaluation of a nitinol U-Clip anastomosis. Eur J Vasc Endovasc Surg. 2012 Feb;43(2):224-31. doi: 10.1016/j.ejvs.2011.11.002. Epub 2011 Nov 21.

    PubMed 22104322
  • Shenoy S, Miller A, Petersen F, Kirsch WM, Konkin T, Kim P, Dickson C, Schild AF, Stewart L, Reyes M, Anton L, Woodward RS. A multicenter study of permanent hemodialysis access patency: beneficial effect of clipped vascular anastomotic technique. J Vasc Surg. 2003 Aug;38(2):229-35. doi: 10.1016/s0741-5214(03)00412-9.

    PubMed 12891102
  • Shenoy S, Woodward RS. Economic impact of the beneficial effect of changing vascular anastomotic technique in hemodialysis access. Vasc Endovascular Surg. 2005 Sep-Oct;39(5):437-43. doi: 10.1177/153857440503900509.

    PubMed 16193217

Questions about this trial

What is this clinical trial studying?

A study testing Clipped anastomosis and Handsewn anastomosis in people with Arteriovenous Fistula Complications and Failure, run by Gundersen Lutheran Medical Foundation at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 7 Sep 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was stopped early (reason given: minimal accrual). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Patency rates (time frame: 2 years postoperative). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01669850, which also lists 5 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Sep 2015.

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