The Effect of Ultrasonography on Blood Flow,Vessel Diameter,and Depth Measurements in Dialysis Patients With Fistula
Arteriovenous fistulas (AVF) are considered essential and the primary vascular access for end-stage renal disease patients to receive hemodialysis (HD) treatment. The maturation failure rate of AVFs is approximately 23%. The aim of our study is to compare intraoperative fistula flow and measurements of vascular structures' diameters with postoperative fistula maturation, following the completion of the fistula operation, to reveal the relationship between them. Providing insights into the need for intraoperative intervention and/or postoperative fistula management based on these measurements is intended to contribute to the literature by offering predictions and perspectives.
- EligibilityCriteria: Inclusion Criteria:  Patients in need of AVF for hemodialysis due to end-stage renal failure, Patients aged 18 and older but younger than 70, Patients who have not undergone dialysis before, Patients with normal sinus rhythm on EKG, Patients with triphasic flow in upper extremity arterial Doppler ultrasonography, Patients with a minimum vessel diameter of ≥2 mm for arteries and ≥2.5 mm for veins on Doppler ultrasonography.  Exclusion Criteria:  Patients with reduced ejection fraction (EF) (<50%), Patients with heart valve disease, Patients with coronary artery disease or those who have undergone coronary artery bypass grafting surgery, Patients with a history of fistula creation, Patients undergoing fistula revision, Patients with peripheral vascular disease, Patients with venous embolism/thrombosis or occlusion history in the upper extremity superficial/deep venous system, superior vena cava, Patients with arterial embolism or occlusion in the upper extremity, Patients with burn scars in the upper extremity, Patients with atrophy/paralysis/plegia in the upper extremity, Patients with uncontrolled diabetes, Patients with connective tissue disease. - HealthyVolunteers: No - Gender: All - MinimumAge: 18 Years - MaximumAge: 70 Years - StdAgeList: Adult, Older Adult - StudyPopulation: Patients undergoing the first-time autologous arteriovenous fistula creation surgery in end-stage renal failure will be included in the study. - SamplingMethod: Probability Sample