Arteriovenous fisutla (AVF) is the vascular access of choice for hemodialysis but has a high early failure (eAVFF) rate. eAVFF can be defined as thrombosis/stenosis and Doppler ultrasound (DUS)-based failure-to-mature parameters such as postoperative blood flow (PostQa) \< 500 ml/min, AVF-vein diameter (PostVD) \< 5 mm, and AVF-vein depth (PostVDepth) ≥ 6 mm. We explored whether common risk factors for eAVFF could predict these eAVFF parameters and venous distensibility: the latter is largely overlooked as a potential eAVFF parameter.
Study Type
OBSERVATIONAL
Enrollment
105
Evaluation of the following variables : age, sex, body mass index, Diabetes mellitus, vascular disease, hematologic disease, venous thromboembolic disease, antiplatelet or anticoagulant treatments, haemodialysis Catheter Insertion, number of comorbid conditions, Venous diameter, Arterial diameter, AVF type, AVF limb, Anasthesia group
CHR Metz-Thionville/Hopital de Mercy
Metz, France
Identification of the pre/perioperative factors that predict early AVF failure (eAVFF)
Comparison of preoperative and intraoperative results according to composite factors of arteriovenous fistula failure: Qa blood flow \< 500 ml/min, postoperative venous internal diameter PostVD \< 5 mm; complications: presence of stenosis, presence of thrombosis; AVF vein depth (external diameter) (PostVDepth) ≥ 6. The following variables were compared between groups: age (years) , sex (Man/Women), body mass index (kg/m2), Comorbidities \[Diabetes mellitus (yes/no), obesity (yes/no)\], Preoperative hemoglobin (g/dl); locoregional anesthesia (yes/no), Central Venous Catether (CVC) use (yes/no); CVC use on same side as AVF (yes/no); AVF on left side of body (yes/no); Distal AVF location (yes/no); Preop AVF vessel diameter (artery and vein; mm).
Time frame: up to 3 months after AVF creation
Identification of the pre/perioperative factors that predict the early postoperative AVF blood flow (PostQa)
Comparison of preoperative and intraoperative results according to AVF blood flow (Qa \< 500 ml/min) for the following variables: age (years) , sex (Man/Women), body mass index (kg/m2), Diabetes mellitus (yes/no), vascular disease (yes/no), hematologic disease (yes/no), venous thromboembolic disease (yes/no), antiplatelet or anticoagulant treatments (yes/no), haemodialysis Catheter Insertion (yes/no), the number of comorbid conditions (1, 2, 3 and 4), Venous diameter (mm), Arterial diameter (mm), AVF type (Brachiocephalic/Radiocephalic), AVF limb (left/right), Anasthesia group (local/general)
Time frame: up to 3 months after AVF creation
Identification of the pre/perioperative factors that predict the early postoperative venous internal diameter (PostVD)
Comparison of preoperative and intraoperative results according to venous internal diameter (PostVD \< 5 mm vs \> 5 mm) for the following variables: age (years) , sex (Man/Women), body mass index (BMI: kg/m2), Comorbidities (Diabetes mellitus (yes/no), vascular disease (yes/no), hematologic disease (yes/no), venous thromboembolic disease (yes/no), antiplatelet or anticoagulant treatments (yes/no), haemodialysis Catheter Insertion (yes/no), the number of comorbid conditions (1, 2, 3 and 4), Venous diameter (mm), Arterial diameter (mm), AVF type (Brachiocephalic/Radiocephalic), AVF limb (left/right), Anasthesia group (local/general)
Time frame: up to 3 months after AVF creation
Identification of the pre/perioperative factors that predict the early postoperative AVF stenosis and/or thrombosis
Comparison of preoperative and intraoperative results according to stenosis and/or thrombosis (stenosis or thrombosis vs no complications) for the following variables: age (years) , sex (Man/Women), body mass index (kg/m2), Diabetes mellitus (yes/no), vascular disease (yes/no), hematologic disease (yes/no), venous thromboembolic disease (yes/no), antiplatelet or anticoagulant treatments (yes/no), haemodialysis Catheter Insertion (yes/no), the number of comorbid conditions (1, 2, 3 and 4), Venous diameter (mm), Arterial diameter (mm), AVF type (Brachiocephalic/Radiocephalic), AVF limb (left/right), Anasthesia group (local/general)
Time frame: up to 3 months after AVF creation
Identification of the pre/perioperative factors that predict the early postoperative skin to AVF distance
Comparison of preoperative and intraoperative results according to skin-AVF distance (\< 6 mm vs ≥ 6 mm) for the following variables: age (years) , sex (Man/Women), body mass index (kg/m2), Diabetes mellitus (yes/no), vascular disease (yes/no), hematologic disease (yes/no), venous thromboembolic disease (yes/no), antiplatelet or anticoagulant treatments (yes/no), haemodialysis Catheter Insertion (yes/no), the number of comorbid conditions (1, 2, 3 and 4), Venous diameter (mm), Arterial diameter (mm), AVF type (Brachiocephalic/Radiocephalic), AVF limb (left/right), Anasthesia group (local/general)
Time frame: up to 3 months after AVF creation
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