The purpose of this clinical trial is to analyze patency after autologous infrainguinal bypass surgery in patients receiving a venous conduit versus a covered venous conduit.
Patients presenting to Vascular Surgical Units are usually multimorbid with increased cardiopulmonary risk. Autologous venous bypass is indicated in certain situations despite the longer duration of surgery. Optimizing patency has been an important goal since many years. Reconstruction problems are often based on intimal hyperplasia, which can be reduced via covering of the harvested vein as seen in previous studies. This clinical trial will be conducted at our Division of Vascular Surgery and Endovascular Surgery at the University Hospital of Salzburg. Patients will be randomized into one of the two treatment options, which are a plain venous conduit or a by mesh covered venous conduit. During this clinical trial, the first follow-up will take place after 6 weeks; this corresponds to the usual follow-up interval. Due to the trial, further follow-ups will take place for each of the patients after 3 months, 6 months, 12 months, 2 years.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
110
The harvested vein graft will be covered with a mesh.
The harvested vein graft will be used without a mesh coating.
University Hospital of Salzburg, Paracelsus Medical University
Salzburg, Austria
RECRUITINGIncidence of primary patency of the venous bypass
The incidence of patency of the venous bypasses will be analysed and compared. This is defined as freedom from occlusion of the venous bypass.
Time frame: 2 years
Incidence of procedure-related mortality
Mortality intervention-related
Time frame: 2 years
Incidence of 30-day mortality
Number of participants, who die within 30 days after the procedure.
Time frame: 30 days
Incidence of limb salvage after procedure
Amputation free survival
Time frame: 2 years
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