The goal of this clinical trial is to learn if postoperative wound complications in the inguinal region of high-risk patients with peripheral arterial occlusive disease can be prevented by the intraoperative application of cold atmospheric plasma. The main questions it aims to answer are: Does the intraoperative application of cold atmospheric plasma reduce the need for surgical revision of inguinal wounds due to wound healing complications within 3 months postoperatively? Does the intraoperative application of cold atmospheric plasma reduce wound healing complications not requiring revision within 3 months postoperatively? Researchers will compare the application of cold atmospheric plasma to a placebo (a deactivated look-alike device). Participants will: Undergo surgical treatment with femoral artery access due to their peripheral arterial occlusive disease, in accordance with the respective vascular surgery department standard of care. Receive a single application of cold atmospheric plasma or, respectively, placebo in the area of their inguinal access wound during surgery (after subcutaneous closure and prior to skin closure). Be regularly assessed for wound healing during the first postoperative 14 days as part of routine clinical care and undergo a final evaluation at 3 months. They will also be surveyed regarding their quality of life.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Enrollment
214
Single intraoperative treatment of the wound edges and the subcutaneous tissue adjacent to the wound edges with cold atmospheric plasma after subcutaneous closure and prior to skin closure
Single intraoperative treatment of the wound edges and the subcutaneous tissue adjacent to the wound edges with sham device after subcutaneous closure and prior to skin closure
Department of Vascular and Endovascular Surgery
Cologne, North Rhine-Westphalia, Germany
Time to revision surgery due to inguinal wound healing complications
Time frame: within 3 months postoperatively
Number of wound healing complications not requiring surgical revision
Time frame: within 3 months postoperatively
Time to MACE (major adverse cardiac events) (myocardial infarction, cardiovascular death, stroke)
Time frame: within 3 months postoperatively
Time to MALE (major adverse limb events) (amputation, graft occlusion, unplanned repeat revascularization)
Time frame: within 3 months postoperatively
course of patients quality of life over the course of wound healing
Patients will be provided with the EQ-5D-5L (European Quality of Life 5 Dimensions 5 Level Version) questionnaire in order to assess quality of life at the baseline visit as well as follow-up visits 3 and 4 and after 3 months (end of study visit). The EQ-5D-5L will be evaluated by converting responses across its five domains-mobility, self-care, usual activities, pain/discomfort, and anxiety/depression-into a single health utility index using a country-specific value set (e.g., German tariff), with possible values typically ranging from below 0 (worse than death) to 1 (full health). Each domain is rated on a 5-level scale, where 1 = no problems, 2 = slight problems, 3 = moderate problems, 4 = severe problems, and 5 = extreme problems/unable to perform. In addition, the EQ Visual Analogue Scale (EQ VAS) score will be analyzed separately, ranging from 0 (worst imaginable health) to 100 (best imaginable health).
Time frame: within 3 months postoperatively
course of estimated Glomerular Filtration Rate (eGFR) over the course of wound healing
According to clinical routine, blood samples will be collected at follow-up visits if clinically indicated, and the results will be evaluated, in this case: eGFR ml/min/1.73m²
Time frame: within 3 months postoperatively
course of white blood cell count over the course of wound healing
According to clinical routine, blood samples will be collected at follow-up visits if clinically indicated, and the results will be evaluated, in this case: white blood cell count 10\*9/L
Time frame: within 3 months postoperatively
course of C- reaktive protein over the course of wound healing
According to clinical routine, blood samples will be collected at follow-up visits if clinically indicated, and the results will be evaluated, in this case: C- reaktive protein (mg/L)
Time frame: within 3 months postoperatively
course of procalcitonin over the course of wound healing
According to clinical routine, blood samples will be collected at follow-up visits if clinically indicated, and the results will be evaluated, in this case: procalcitonin (ng/ml)
Time frame: within 3 months postoperatively
course of hemoglobin over the course of wound healing
According to clinical routine, blood samples will be collected at follow-up visits if clinically indicated, and the results will be evaluated, in this case: hemoglobin g/dl
Time frame: within 3 months postoperatively
course of platelets over the course of wound healing
According to clinical routine, blood samples will be collected at follow-up visits if clinically indicated, and the results will be evaluated, in this case: platelets 10\*9/L
Time frame: within 3 months postoperatively
Course of haematocrit over the course of wound healing
According to clinical routine, blood samples will be collected at follow-up visits if clinically indicated, and the results will be evaluated, in this case: haematocrit (%)
Time frame: within 3 months postoperatively
course of albumin over the course of wound healing
According to clinical routine, blood samples will be collected at follow-up visits if clinically indicated, and the results will be evaluated, in this case: albumin (g/L)
Time frame: within 3 months postoperatively
course of sodium over the course of wound healing
According to clinical routine, blood samples will be collected at follow-up visits if clinically indicated, and the results will be evaluated, in this case: sodium mmol/L
Time frame: within 3 months postoperatively
course of potassium over the course of wound healing
According to clinical routine, blood samples will be collected at follow-up visits if clinically indicated, and the results will be evaluated, in this case: potassium (mmol/L)
Time frame: within 3 months postoperatively
course of International Normalized Ratio (INR) over the course of wound healing
According to clinical routine, blood samples will be collected at follow-up visits if clinically indicated, and the results will be evaluated, in this case: INR
Time frame: within 3 months postoperatively
course of partial thromboplastin time over the course of wound healing
According to clinical routine, blood samples will be collected at follow-up visits if clinically indicated, and the results will be evaluated, in this case:partial thromboplastin time (s)
Time frame: within 3 months postoperatively
course of total cholersterol over the course of wound healing
According to clinical routine, blood samples will be collected at follow-up visits if clinically indicated, and the results will be evaluated, in this case: total cholesterol (mg/dl)
Time frame: within 3 months postoperatively
course of low- density- lipoprotein cholesterol (LDL cholesterol) over the course of wound healing
According to clinical routine, blood samples will be collected at follow-up visits if clinically indicated, and the results will be evaluated, in this case: LDL cholesterol
Time frame: within 3 months postoperatively
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